<![CDATA[Harduex blog]]>https://harduex.com/blog/https://harduex.com/blog/favicon.pngHarduex bloghttps://harduex.com/blog/Ghost 5.24Tue, 17 Sep 2024 19:26:49 GMT60<![CDATA[The Speed of Light: Fast of Slow?]]>https://harduex.com/blog/the-speed-of-light-fast-of-slow/64382dd84e3e6f0001d7a530Tue, 17 Sep 2024 19:25:22 GMTThe Speed of Light: Fast of Slow?

The speed of light is often thought to be the fastest thing in the universe, reaching an exact 299,792,458 meters per second. To us, that seems incredibly fast! But in the vastness of space, light is actually pretty slow.

In this post, we’ll dive into the speed of light and explore how it compares to other forces in the universe.


What is Light?

Most people think of light as what we see—visible light. But visible light is only a small part of the electromagnetic spectrum. This spectrum includes:

  • Gamma Rays
  • X-Rays
  • Ultraviolet Light
  • Infrared Light
  • Microwaves
  • Radio Waves

Each type of light is classified by its wavelength. Photons are the particles that make up light, and they carry electromagnetic radiation.

Fun Fact: Did you know light actually exerts force? Though it’s too small for us to feel, photons apply pressure when they hit objects!


Rainbows: More Than Just Seven Colors

The Speed of Light: Fast of Slow?
Photo by Jared Erondu / Unsplash

One of the best ways to see light in action is by looking at a rainbow. Rainbows show the visible spectrum of light, but there's a misconception that they only have seven colors.

In reality, the colors we see are just different wavelengths of visible light. Red has the longest wavelength, while violet has the shortest. There are many more wavelengths in between.


Light vs. Sound: The Speed Showdown

The Speed of Light: Fast of Slow?
Photo by NOAA / Unsplash
Let’s compare the speed of light with the speed of sound:

  • Speed of sound: ~343 meters per second
  • Speed of light: ~299,792,458 meters per second

Light is nearly 1 million times faster than sound! That's why when we see lightning, we witness it almost immediately, but the thunder follows much later.


The Cosmic Journey at Light Speed

The Speed of Light: Fast of Slow?
Photo by Arnaud Mariat / Unsplash

What if we could travel at the speed of light? The distances in space are so vast that even light takes time to travel:

  • Around Earth: 0.134 seconds
  • From Earth to the Sun: 8 minutes and 20 seconds
  • From Earth to Neptune’s orbit: Over an hour

And that’s just within our solar system! The closest star to us, Proxima Centauri, is more than 4 light-years away, meaning even at light speed, the journey would take over 4 years!

In the context of the entire universe, where galaxies are separated by millions or even billions of light-years, light’s pace starts to seem incredibly slow. While it can zip around Earth in milliseconds, traversing the cosmos takes unimaginable amounts of time.


Conclusion

The speed of light is a fundamental concept in physics, shaping our understanding of the universe. Though it seems fast to us, it’s still slow when considering the vastness of space. Yet, this speed plays an essential role in our daily lives and in exploring the cosmos.

Light may be slow on a cosmic scale, but it remains key to unlocking the mysteries of the universe.

The Speed of Light: Fast of Slow?
Photo by Maxime VALCARCE / Unsplash
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<![CDATA[Why You Should Be Drinking Lemon Water Every Day]]>https://harduex.com/blog/health-benefits-lemon-water/66d83fd9db15a900012b965dWed, 04 Sep 2024 12:15:57 GMTWhy You Should Be Drinking Lemon Water Every Day

Lemon water is often touted for its health benefits, but many people don't realize just how impactful it can be. Here are the key reasons you should consider incorporating lemon water into your daily routine:

1. Reduces Fatty Liver

The phytonutrients in lemon water can significantly improve hepatic steatosis, commonly known as fatty liver. These nutrients help dissolve fat in the liver, which can be further enhanced by a ketogenic diet. Adding lemon to your water can accelerate this process.

2. Lowers Cholesterol

Lemon water aids in increasing bile flow, which helps reduce excess cholesterol. This is particularly beneficial if you have a sluggish liver or gallbladder, as it helps clear backed-up cholesterol from your system.

3. Supports Weight Loss

While lemon water doesn't directly cause weight loss, it helps by lowering insulin resistance and blood sugar levels. Lowering insulin is crucial for fat cells to shrink, making lemon water a great addition to a weight loss regimen.

4. Anti-Aging Benefits

Studies on animals have shown that regular consumption of lemon water can extend lifespan and improve the health of the microbiome, your body's friendly bacteria. Though these studies are preliminary, the potential for long-term benefits is significant.

5. Anti-Cancer Properties

Lemon water contains phytonutrients that have shown the ability to kill malignant cells in the tongue, lung, and colon in test tube studies. While not a cure, it can be a supportive measure against cancer.

6. Prevents Kidney Stones

Citrate in lemon juice binds with oxalates, preventing the formation of calcium oxalate kidney stones. Increasing your intake of lemon juice can significantly reduce the risk of kidney stones, especially if you're prone to them.

7. Provides Vitamin C

Freshly squeezed lemon juice is an excellent source of vitamin C, offering up to half of your daily requirement. Vitamin C is vital for immune function, collagen formation, and preventing various deficiencies and conditions.

8. Boosts Circulation and Reduces Inflammation

Lemon water is rich in phytonutrients that improve circulation and reduce symptoms of conditions like hemorrhoids, leg sores, and varicose veins. These nutrients also have antibacterial, antiviral, and antifungal properties, making lemon water a powerful addition to your diet.

Incorporating Lemon Water into Your Routine

To reap these benefits, add lemon juice to your water regularly. For maximum effect, combine it with apple cider vinegar. Use the juice from a whole lemon or a few teaspoons of bottled lemon juice (preferably unpasteurized to retain vitamin C).

Lemon water is a simple, natural way to boost your health. Start your day with a glass and enjoy the multitude of benefits it offers!

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<![CDATA[How to Run Larger Diffusion Models With Low VRAM in ComfyUI: A Guide for Running the New Flux Model Using Less Than 12GB VRAM!]]>https://harduex.com/blog/run-larger-diffusion-models-with-low-vram-comfyui-guide/66afe6a84aac4d00016b8d41Sun, 04 Aug 2024 22:07:59 GMT

Running large models in ComfyUI can be challenging, especially when dealing with limited GPU memory (VRAM). However, by adding your system RAM, you can run models that exceed your GPU's VRAM capacity. Learn how in this article!


First, What is FLUX?

Black Forest Labs, the team that helped develop the original Stable Diffusion, recently has unveiled Flux, the largest open-source text-to-image model to date. Boasting an impressive 12 billion parameters, Flux produces visuals that rival those of Midjourney and may surpass any other model available, whether open-source or proprietary.

In this guide, I'll show you how to run the new Flux model on a GPU with just 12GB of VRAM (or less) in ComfyUI! We'll cover the necessary setup, including a small bonus for Linux users.


Let's begin.

Installation and Setup

1. Download the Required Files

2. Configure ComfyUI for Low VRAM Usage

To ensure the setup runs within the limits of a 12GB VRAM GPU, add the --lowvram argument when running ComfyUI: python main.py --lowvram. This setting directs the system to use system RAM to handle VRAM limitations.

3. Custom Script for Linux Users

As a Linux user, I streamline the process with addind a custom ./start.sh script in the ComfyUI folder. This script manages the virtual environment and always starts ComfyUI with the necessary parameters:

#!/bin/bash
# Custom script for activating the virtual environment and starting comfyui

# Create the virtual environment if it doesn't exist already
if [ ! -d ".venv" ]; then 
    python3 -m venv .venv
    source .venv/bin/activate
    pip install -r requirements.txt
fi

# Activate the virtual environment and start comfyui
source .venv/bin/activate
python main.py --lowvram

The script creates a virtual environment (.venv) which isolates the ComfyUI environment and helps managing dependencies, ensuring a smoother experience and no conflicts with your global python packages. You can adjust the script to fit your setup.

* Make sure to make the script executable before using it: chmod +x ./start.sh


4. Update and Run ComfyUI

Ensure your ComfyUI installation is up-to-date then start the web UI by simply running ./start.sh or python main.py --lowvram if you don't want to use isolated virtual env.

Download this workflow and load it in ComfyUI by either directly dragging it into the ComfyUI tab or clicking the "Load" button from the interface. After loading, adjust the nodes to use the models you've just downloaded.

How to Run Larger Diffusion Models With Low VRAM in ComfyUI: A Guide for Running the New Flux Model Using Less Than 12GB VRAM!
This image can also be used as a ComfyUI workflow.

Finally, run the workflow by clicking on "Queue Prompt" button.

* Be patient; The generation process takes around 1 minute with 4 steps, but it's worth the waiting!


Hardware and Performance

My Setup:

  • CPU: Intel Core i5-13600KF
  • GPU: NVIDIA GeForce RTX 3060 with 12GB VRAM
  • Memory: 32GB DDR5 5200MHz RAM + Linux Swap File

Important Considerations

  • Memory Usage: The setup can consume nearly all available 32GB of RAM. Systems with less RAM may experience slowdowns or instability, especially during peak memory usage.
  • Text Encoding: The time for text encoding can vary. Notably, after a period of inactivity, the process can take up to 200 seconds. A more powerful CPU can help reduce this time.
  • Model Choice: For beginners, the Flux.1 Schnell model is a good starting point due to its simpler setup and fewer required steps.

Conclusion

Running larger models on a GPU with limited VRAM is achievable with the right setup and configurations. By compensation low VRAM with system RAM, you can effectively run advanced models like Flux on mid-range GPUs. This guide provides the necessary steps and considerations to ensure smooth operation, allowing you to explore the creative possibilities within ComfyUI.

Resources:

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<![CDATA[How to Avoid a Major Database Disaster with this Simple Trick]]>https://harduex.com/blog/using-database-transactions-to-avoid-mistakes/66aa794c2cf18800012c90f5Sat, 03 Aug 2024 09:16:00 GMTHow to Avoid a Major Database Disaster with this Simple Trick

When managing a database, making manual changes to the data can be risky. A single mistake can lead to catastrophic results. However, there's a simple trick that can help you avoid major blunders and potentially save your entire application.

The Scenario

Imagine you need to manually modify some data in your database. For example, you want to change user number one to an admin user. You might write a query like this:

UPDATE users SET role = 'admin';

If you're not careful and execute this query as it is, you could end up setting every single user to be an admin! This mistake is irreversible without a proper precaution, leading to significant data issues.

The Solution: Using Transactions

Fortunately, there's a way to avoid this disaster, simply by using database transactions. Transactions allow you to make changes and then review them before making them permanent. Here's how it works:

  1. Start a Transaction: Begin by starting a transaction before making any modifications.

    START TRANSACTION;
    
  2. Make Your Changes: Write and execute your query within the transaction.

    UPDATE users SET role = 'admin' WHERE id = 1;
    
  3. Review Changes: Double-check the changes to ensure they are correct. If everything looks good, then you can commit the transaction, making the changes permanent.

    COMMIT;
    
  4. Rollback If Necessary: If you realize there's a mistake, you can roll back the transaction, undoing all the changes.

    ROLLBACK;
    

Why Transactions are Underrated

Transactions are one of the most underrated features in database management. They provide a safety net that allows you to revert mistakes and maintain data integrity. By always starting a transaction before making changes, you can prevent potentially disastrous errors.

Conclusion

Using transactions is a simple yet powerful practice that can save you from major database mistakes. Before making any manual data changes, start a transaction, review your changes, and commit only when you're confident. This approach ensures that you can always rollback if something goes wrong, keeping your data safe and your application running smoothly!

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<![CDATA[Big Muscles: Not Only for Aesthetics but Also Longevity]]>https://harduex.com/blog/importance-of-muscle-mass-longevity-health-benefits/66aa66d02cf18800012c90a1Wed, 31 Jul 2024 17:23:37 GMTBig Muscles: Not Only for Aesthetics but Also Longevity

When most people think about building muscle, the first thing that comes to mind is often aesthetics—sculpted abs, bulging biceps, and a toned physique. While these visual benefits are widely celebrated, the importance of muscle mass extends far beyond appearance. In fact, muscle health is a crucial component of longevity and overall well-being.

The Role of Muscle in Longevity

Muscle mass plays a pivotal role in maintaining health as we age. Here's how:

  1. Metabolic Health: Muscles are vital for metabolic health. They help regulate blood sugar levels by absorbing glucose, reducing the risk of type 2 diabetes. Muscles also influence the basal metabolic rate (BMR), meaning that more muscle mass can enhance calorie burning even at rest.

  2. Bone Density: Weight-bearing exercises that build muscle also strengthen bones. This is particularly important in preventing osteoporosis and fractures in older adults.

  3. Mobility and Balance: Strong muscles support joint health and improve balance, reducing the risk of falls—a leading cause of injury in the elderly. Better mobility enhances the ability to perform daily activities independently.

  4. Inflammation and Immunity: Regular exercise and increased muscle mass have been linked to reduced chronic inflammation and enhanced immune function. This can help prevent a range of diseases, from cardiovascular issues to certain cancers.

  5. Mental Health: Exercise, especially resistance training, has been shown to improve mood and cognitive function. It can alleviate symptoms of depression and anxiety, promoting a better quality of life.

Building and Maintaining Muscle

To reap these benefits, it's important to engage in regular physical activity that includes both resistance training and aerobic exercises. Here are some tips for building and maintaining muscle:

  • Resistance Training: Incorporate exercises such as weight lifting, resistance band workouts, and bodyweight exercises like push-ups and squats into your routine.
  • Consistency: Aim for at least two to three sessions of resistance training per week.
  • Nutrition: Consume a balanced diet rich in protein to support muscle repair and growth. Foods such as lean meats, legumes, and dairy products are excellent sources.
  • Rest and Recovery: Allow muscles time to recover between workouts to prevent injury and promote growth.

The Science Behind Muscle and Longevity

Research supports the connection between muscle mass and longevity. Studies have shown that greater muscle mass is associated with lower mortality rates in older adults. Maintaining muscle strength is linked to better health outcomes and a higher quality of life.

For example, a study published in the *American Journal of Medicine found that muscle mass is inversely associated with all-cause mortality risk in older adults. Another study in the Journal of Gerontology emphasized the importance of muscle strength in predicting longevity, independent of muscle mass.

In Conclusion

Building and maintaining muscle is not just about looking good—it's about living a longer and healthier life. By focusing on muscle health, we can improve our metabolic health, enhance bone density, maintain mobility and balance, reduce inflammation, and boost our mental well-being. As we age, these benefits become even more critical, underscoring the importance of integrating muscle-building activities into our daily routines.

Investing in muscle health today is an investment in a longer, healthier tomorrow. So, the next time you hit the gym or engage in physical activity, remember that you're not just working towards a better physique—you're enhancing your longevity and overall health!

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<![CDATA[Write Better JavaScript Using ||=, &&=, and ??= Operators]]>https://harduex.com/blog/hidden-javascript-operators/66a7c6a70f27250001ecf118Mon, 29 Jul 2024 17:37:05 GMTWrite Better JavaScript Using ||=, &&=, and ??= Operators

JavaScript is a programming language full of hidden treasures that can make coding easier and more efficient. Among these gems are the ||=, &&=, and ??= operators. While they might not be so commonly used, they can be incredibly useful in specific scenarios. Let's explore how these interesting operators can clean and simplify your code.

The ||= Operator

The ||= operator, also known as the logical OR assignment, simplifies the process of assigning a default value if a variable is falsy (i.e., null, undefined, 0, false, NaN, or an empty string).

Example:

let options = {};
options.newOption ||= 1;

This code checks if options.newOption is falsy. If it is, it assigns the value 1. Otherwise, it keeps the current value of options.newOption.

The &&= Operator

The &&= operator, or logical AND assignment, is useful when you want to assign a value only if the variable is truthy (i.e., not null, undefined, 0, false, NaN, or an empty string).

Example:

let options = { newOption: 2 };
options.newOption &&= 1;

Here, options.newOption will be set to 1 only if it already has a truthy value. If newOption were 0 or null, for instance, it would remain unchanged.

The ??= Operator

The ??= operator, known as the nullish coalescing assignment, assigns a value to a variable only if that variable is null or undefined. This is particularly useful when you want to avoid overriding values like 0 or an empty string which are falsy but might be valid in your context.

Example:

let options = { newOption: 0 };
options.newOption ??= 1;

In this case, options.newOption retains its value of 0 because 0 is not null or undefined. If newOption were null or undefined, it would be set to 1.

Benefits of Using These Operators

  1. Conciseness: These operators allow you to write more concise code, reducing the need for verbose conditional statements.
  2. Readability: Code becomes more readable as the intent of the assignment is clearer.
  3. Maintainability: With less boilerplate code, maintaining and understanding the logic becomes easier.

Conclusion

Simplifying JavaScript with ||=, &&=, and ??=

JavaScript is full of hidden treasures that can make coding easier and more efficient. Among these gems are the ||=, &&=, and ??= operators. While they might not be widely used in many projects, they can be incredibly useful in specific scenarios. Let's explore how these lesser-known operators can simplify your code.


By incorporating ||=, &&=, and ??= into your JavaScript toolkit, you can elevate your coding game, making your code not only more readable but also more elegant. These operators streamline common patterns, reducing boilerplate and enhancing readability. Whether you're setting default values, managing conditional assignments, or ensuring variables are properly initialized, these tools offer a sleek, modern solution.

Why not give them a try in your next project?

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<![CDATA[10 Super Random Ways to Generate a Password from the Linux Terminal]]>https://harduex.com/blog/10-super-random-ways-to-generate-a-password-from-the-linux-terminal/6696b3416e1388000168a0c3Tue, 16 Jul 2024 19:54:42 GMT

Ah, passwords! Remembering your email password based on your cat's middle name and your bank login tied to your favorite ice cream flavor can get really tricky.. Generating passwords online is not secure either. Luckily, Linux has our back with several ways to whip up a random password right from the command line - locally.

Whether you're a terminal newbie or a seasoned sysadmin, here are ten quirky ways to keep those hackers guessing!

1. OpenSSL and Base64: Because Why Not Use a Bit of Encryption?

Let's start with something that sounds fancy enough to impress your friends. OpenSSL, commonly associated with secure communications, can also whip up a random password. Here's how:

openssl rand -base64 10

This command generates a random string of length 10 using base64 encoding. It’s like asking a security guard to bake you a cake. Weird, but it works.

2. /dev/urandom and tr: The Speedy Randomizer

Why go slow when you can go /dev/urandom fast? This trusty command utilizes the random goodness from your system’s entropy pool:

tr -dc A-Za-z0-9 </dev/urandom | head -c 10

This one filters out everything except alphanumeric characters. Perfect if you’re in a rush but still want to keep things secure.

3. $RANDOM and md5sum: Because Two Randoms Are Better Than One

Sometimes, combining randomness is the key. Enter $RANDOM and md5sum:

echo "$RANDOM" | md5sum | cut -c 1-10

Here, $RANDOM provides a random number, md5sum hashes it, and cut trims it down to a neat 10 characters. It’s like making a smoothie out of random fruits—deliciously unpredictable.

4. xxd and /dev/random: Hex it Up!

Feeling a bit hexadecimal today? Let’s bring in xxd to convert random bytes into hex:

xxd -l 10 -c 10 -p < /dev/random

This command reads 10 bytes from /dev/random and outputs them as a hex string. It’s like sprinkling a bit of geekiness on your password.

5. pwgen: The Password Generator's Best Friend

Why reinvent the wheel when there’s pwgen? This tool is designed for generating passwords with flair:

pwgen 10 1

It’s like having a personal password chef. Tell it the length and the number of passwords you need, and voilà!

6. date and sha256sum: Time-Based Randomness

Mixing the current date with sha256sum gives you a time-flavored random string:

date +%s | sha256sum | base64 | head -c 10

This command combines the current timestamp with SHA-256 hashing and Base64 encoding, serving up a fresh slice of randomness every second.

7. uuidgen: Universally Unique and Utterly Useful

When you need a bit of uniqueness, turn to uuidgen:

uuidgen | cut -c 1-10

UUIDs are designed to be unique across space and time. Trimming one to 10 characters might feel like giving a dragon a haircut, but it’s still fierce.

8. shuf: The Shuffle Master

Take a string, shuffle it, and pick your password:

echo {a..z} {A..Z} {0..9} | tr -d ' ' | fold -w1 | shuf | head -n10 | tr -d '\n'

This command generates a random password by shuffling the alphabet and digits. It’s like playing a game of password poker.

9. Perl: Because Perl Can Do Anything

If you want to get fancy with Perl, try this:

perl -le 'print map { (a..z,A..Z,0..9)[rand 62] } 1..10'

Perl’s map function and random indexing give you a versatile password generator. It’s like having a Swiss Army knife in script form.

10. GPG: For Those Who Trust GnuPG

Finally, let’s use GPG, the guardian of your encrypted secrets:

gpg --gen-random --armor 1 10

This command uses GPG’s random number generator to create an armored, base64-encoded string. It’s like wearing a password tuxedo.

Bonus: Mixing it All Up for Super Extra Unbreakable Password

For those who believe in the power of synergy, here’s a command that combines elements from all ten methods to generate the ultimate random password:

(
  openssl rand -base64 10; \
  tr -dc A-Za-z0-9 </dev/urandom | head -c 10; \
  echo "$RANDOM" | md5sum | cut -c 1-10; \
  xxd -l 10 -c 10 -p < /dev/random; \
  pwgen 10 1; \
  date +%s | sha256sum | base64 | head -c 10; \
  uuidgen | cut -c 1-10; \
  echo {a..z} {A..Z} {0..9} | tr -d ' ' | fold -w1 | shuf | head -n10 | tr -d '\n'; \
  perl -le 'print map { (a..z,A..Z,0..9)[rand 62] } 1..10'; \
  gpg --gen-random --armor 1 10 \
) | shuf | tr -d '\n' | head -c 20

This command collects bits from each of the previous ten methods, shuffles them together, and trims the result to a super-random, 20-character password. It's like throwing all your favorite snacks into a blender—sure, it's a bit chaotic, but the result is an unbreakable delight!


There you have it — ten quirky and reliable ways to generate a random password from the Linux command line! Whether you’re a command line wizard or just someone who wants to keep their accounts safe, these methods have got you covered.

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<![CDATA[Why Heart Rate is a Better Indicator for Rest Between Workout Sets than Time]]>https://harduex.com/blog/why-heart-rate-is-a-better-indicator-for-rest-between-workout-sets-than-time/6687ff11e8626e000121db3fFri, 05 Jul 2024 14:22:55 GMTWhy Heart Rate is a Better Indicator for Rest Between Workout Sets than Time

When it comes to optimizing workouts, particularly strength training, the rest period between sets plays a crucial role. Traditionally, rest intervals are measured by time, with recommendations often suggesting anywhere from 30 seconds to 3 minutes based on the exercise and goals. However, based on my personal experience and insights, monitoring heart rate might be a superior method to gauge rest intervals.

The Case for Heart Rate Monitoring

Understanding Heart Rate as a Measure of Recovery

Heart rate (HR) is a dynamic indicator of your body’s state, reflecting real-time cardiovascular and muscular recovery. When you perform a set of exercises, particularly those involving significant muscle groups or high intensity, your heart rate spikes to supply the muscles with oxygen and nutrients needed to sustain the effort.

Smart Watches: The Modern Tool for Monitoring

Thanks to advancements in wearable technology, monitoring your heart rate during workouts has never been easier. Smartwatches provide continuous heart rate data, allowing you to make informed decisions about when to start your next set. Instead of relying on a stopwatch, these devices offer real-time insights into your physiological readiness to proceed. While smartwatches are the primary tool, fitness bands and chest straps are also effective alternatives for heart rate monitoring.

Practical Application: Heart Rate-Based Rest Intervals

During the Set

When you engage in a set, especially in activities like weightlifting, high-intensity interval training (HIIT), or circuit training, your heart rate can rise significantly. For instance, it might shoot up to 150-160 beats per minute (bpm) depending on the intensity and individual fitness levels.

Rest Between Sets

The key to using heart rate as your rest interval indicator is to wait until your heart rate drops to a certain level before beginning the next set. A practical and effective approach is to rest until your heart rate falls back to around 120-130 bpm. This ensures that your body has sufficiently recovered, optimizing performance and reducing the risk of overtraining or injury.

Benefits of Heart Rate-Based Rest Intervals

  1. Personalized Recovery: Unlike fixed time intervals, heart rate-based recovery is tailored to your body’s immediate needs. It accounts for daily variations in energy levels, stress, and overall fatigue.

  2. Improved Performance: Ensuring adequate recovery between sets can lead to better performance in subsequent sets, allowing you to maintain higher intensity and better form throughout your workout.

  3. Reduced Risk of Overtraining: By listening to your body and allowing it to dictate rest periods, you minimize the risk of overtraining, which can lead to burnout and injuries.

  4. Enhanced Cardiovascular Fitness: Regular monitoring of heart rate and adjusting rest periods can improve cardiovascular efficiency and endurance over time.

  5. Environmental Considerations: Factors such as weather, temperature, and humidity can significantly affect your workouts and heart rate. On hot or humid days, your heart rate may be elevated even at lower exercise intensities. Using heart rate as an indicator for rest takes these external factors into account, ensuring you rest adequately regardless of environmental conditions.

Implementing Heart Rate-Based Rest Intervals

To start incorporating heart rate-based rest intervals in your training:

  1. Invest in a Smartwatch: Choose a reliable smartwatch with continuous heart rate monitoring capabilities. Fitness bands and chest straps are also effective alternatives if you prefer those.

  2. Use Workout Modes: Make use of the workout modes available on your device, which actively track your heart rate during exercises.

  3. Monitor and Adjust: Begin your set and observe your heart rate spike. Rest until your heart rate drops back to the set range before starting the next set. Additionally, you can set notifications for extreme heart rates (over 160-170 bpm) to ensure you’re not overexerting yourself.

  4. Track Progress: Keep a log of your heart rate data and performance metrics. Over time, you’ll likely see improvements in both your cardiovascular fitness and strength levels.

Conclusion

Transitioning to heart rate-based rest intervals offers a more nuanced and effective approach to training. By leveraging smart technology, you can ensure that your body gets the optimal recovery it needs between sets, enhancing performance and reducing the risk of injuries. As fitness continues to evolve with technology, heart rate monitoring stands out as a practical, personalized, and efficient tool for anyone serious about their workout regimen. So, strap on that smartwatch and let your heart rate guide you to better gains and a healthier training routine.

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<![CDATA[Meet ComfyUI]]>https://harduex.com/blog/meet-comfy-ui/664a27464773f60001a5fd1fSun, 19 May 2024 19:53:23 GMT

The most powerful and modular stable diffusion GUI, api and backend with a graph/nodes interface.

We are living in an era where AI-generated images are no longer a distant dream but a vibrant reality. Today, it's common to hear things like, "Look at this fascinating image I generated. Do you want me to create another one with your face on it?" What an incredible time to be alive. But wait—how can you generate an AI image with someone else's face, maintain the body position and vibe, and not even use Photoshop? How is this possible?

We are familiar with DALL·E 3, Midjourney, and other online tools. However, they are primarily online, not as flexible, and often come with usage limitations or costs.

For tech geeks like you and me, there should be a free and open-source alternative that offers the control and granularity we crave, along with a large community for inspiration and learning, right?

Well...

Meet ComfyUI!

ComfyUI is the epitome of innovation in the realm of open-source AI image generation. It’s an open-source platform that provides a graph/nodes interface for creating and executing complex stable diffusion workflows. This means you can design your own image generation workflows using variety of nodes, including a big collection of custom ones! It’s fully equipped to support various versions of Stable Diffusion, including SD1.x, SD2.x, and SDXL, among others.

Open-Source Knowledge and Inspiration

When it comes to expanding your horizons and getting creative with Comfy UI, the internet is a treasure trove of resources. Here are some open-source platforms where you can dive deep into the world of AI image generation:

  • ComfyUI Examples: This repo contains examples of what is achievable with ComfyUI. All the images in this repo contain metadata which means they can be loaded into ComfyUI with the Load button (or dragged onto the window) to get the full workflow that was used to create the image.
  • ComfyUI Community Manual: This is the community-maintained repository of documentation related to ComfyUI.
  • CivitAI: Explore thousands of high-quality Stable Diffusion models, share your AI-generated art, and engage with a vibrant community of creators.
  • ComfyWorkflows: Dedicated to sharing workflows and tips for getting the most out of Comfy UI’s capabilities.
  • Tensor.art: An artistic space that showcases the possibilities of AI in creating stunning visual art.
  • Open Model DB: OpenModelDB is a community driven database of AI Upscaling models. We aim to provide a better way to find and compare models than existing sources.
  • Hugging Face: Most of the stable diffusion checkpoints, LoRA, ControlNet and IP Adapter models and many more ineresting resources can be found here. Not only for AI image generation but in general for AI.

Get Started

You can find a step-by-step installation guide for ComfyUI here.


Remember, the key to mastering Comfy UI lies in curiosity and experimentation. Give it a try, explore these resources and let your creativity flow!

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<![CDATA[Unlocking Creativity: Exploring the SDXL Turbo Model for Real-Time Image Generation]]>https://harduex.com/blog/exploring-sdxl-turbo/6575a81e1ff17e0001514304Sun, 19 May 2024 16:00:41 GMT

Today, I am going to quickly introuce to you the recent Stability AI model called SDXL Turbo – a refined iteration of the full SDXL model.

Introducing the SDXL Turbo Model

In a recent announcement, Stability AI unveiled its groundbreaking SDXL Turbo model, a distilled version of the full SDXL model. This release is a leap forward in real-time image generation, boasting the capability to produce images with only one step. However, it's essential to note that, as with any cutting-edge technology, there are some limitations.

The SDXL Turbo model operates as a 512 x 512 square model, which means it may not excel in certain areas such as text, photorealism, or intricate facial details. Nevertheless, it's crucial to approach this as a research release – a glimpse into the future of accelerated AI image processing.

Getting Started with SDXL Turbo

Here is example ComfyUI workflow that you can use to get started:

Unlike its predecessor, the SDXL Turbo model doesn't utilize a negative prompt, streamlining the workflow. To achieve optimal results, I recommend adjusting your CFG to a value of one for a better outcome, preventing images from appearing overexposed. The SDXL Turbo model introduces a new scheduler – the SD Turbo scheduler. I suggest to use one to three steps for best results.

Conclusion

It's evident that Stability AI is pushing the boundaries of AI-generated art. While this release is more of a playground for experimentation than a production tool, it offers a sneak peek into the future of AI image generation.

While the quality of this model is not the best, I believe its primary role is to serve as the catalyst for a chain reaction, paving the way for more optimized and faster models. This is already evident in the trending models section on Civit AI, where new and optimized SDXL model versions such as DreamShaper XL Turbo and Realities Edge XL LIGHTNING + Turbo are already present! Although they are not based on the original SDXL Turbo model but SDXL, they achieve impressive results with only 6-8 steps needed per decent 1024 x 1024 image generations.

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<![CDATA[How to Become a Better Programmer - 5 Tips for Productivity]]>Are you looking to level up your programming skills and become a better programmer? Whether you're a beginner or an experienced coder, there are always ways to improve your craft. In this article, we'll explore 5 valuable tips that can help you become a more efficient

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https://harduex.com/blog/how-to-become-a-better-programmer-5-tips-for-productivity/648f06db5b1a060001d801c9Sun, 18 Jun 2023 14:37:38 GMT

Are you looking to level up your programming skills and become a better programmer? Whether you're a beginner or an experienced coder, there are always ways to improve your craft. In this article, we'll explore 5 valuable tips that can help you become a more efficient and effective programmer.


1. Master Keyboard Shortcuts and Key Bindings

One of the easiest ways to boost your productivity as a programmer is by memorizing keyboard shortcuts and key bindings. These shortcuts allow you to transition seamlessly between your mouse and keyboard, saving you precious time and reducing the need to switch back and forth.

If you find yourself frequently reaching for the mouse to perform common tasks, it might be time to learn some key bindings. Most popular code editors and IDEs have a wide range of keyboard shortcuts that can significantly speed up your workflow. Take the time to familiarize yourself with these shortcuts, and you'll notice a marked improvement in your programming efficiency. If you're using Visual Studio Code, check out this VSCode cheatsheet.


2. Read the Documentation Thoroughly

When faced with a programming challenge or a new technology, it's tempting to skim through the documentation and look for quick answers. However, taking the time to read the documentation thoroughly can provide a wealth of knowledge and insights that can significantly enhance your programming skills.

Documentation is often written by experts and offers detailed explanations, examples, and best practices. By investing the time to thoroughly understand the documentation, you'll gain a deeper understanding of the tools and frameworks you're using. This knowledge will not only help you solve immediate problems but also enable you to make better decisions and write more robust code in the long run.

So, the next time you encounter a new library or a complex feature, resist the urge to skim. Instead, allocate time to read the documentation thoroughly, and you'll find yourself equipped with a valuable arsenal of knowledge!

3. Code as if Others Are Watching

Even if your code is not being seen by another programmer at the moment, it's essential to write it as if it were. The readability and maintainability of your code are crucial aspects that can make your life as a programmer much easier in the future.

When you write code with the assumption that others will review it, you tend to adopt good programming practices. This means writing clean, well-structured code, using meaningful variable and function names, and adding helpful comments and documentation.

By cultivating this habit, you not only make your code more understandable for others, but you also make it easier for your future self to navigate and modify the codebase. As projects grow and evolve, having code that is easy to read and comprehend becomes increasingly important.

So, even if you are the only one working on a project, think of your code as a form of communication. Treat it as if others will rely on it, and you'll reap the benefits of maintainable and readable code in the long run.

4. Seek Feedback and Collaborate

Programming is not a solitary activity. Seeking feedback from others and collaborating with fellow programmers can help you grow and improve your skills.

Don't be afraid to share your code and ask for suggestions or critiques. Getting input from others can provide fresh perspectives and insights that can lead to better solutions. Engaging in discussions and participating in coding communities or open-source projects can expose you to different approaches and best practices. Embrace collaboration as an opportunity to learn from others and refine your programming abilities.

The field of programming is constantly evolving, and staying updated with industry trends is essential to remain relevant. Continuous and optimized learning is the key to keeping up with the coming wave of new technologies and opportunities.

Currently, one of the prominent trends is the increasing integration of artificial intelligence (AI) in various domains. To keep evolving as a programmer, it's crucial to leverage AI tools such as Chat GPT, GitHub Copilot X, Bing Chat and others. These tools can assist you in tasks like generating code snippets, bug fixing, providing intelligent suggestions, and automating repetitive tasks. By embracing AI, you can enhance your productivity and explore new possibilities in your projects.

Learning can become much faster and easier with AI, but remember: don't be lazy! While AI is a valuable tool, it's essential to double-check the information and always rely on your common sense as the first quality gate. It's important to use AI responsibly and not rely on it blindly. Remember that it is a tool to augment your abilities and creativity, not replace them.

Treat AI as you would treat a human - do not put any information in AI tools that you otherwise would not share with others.

Conclusion

Becoming a better programmer is a continuous journey that requires dedication and a willingness to improve. By mastering keyboard shortcuts and key bindings, reading documentation thoroughly, writing code as if it's being seen by others, seeking feedback and collaboration, staying updated with industry trends, and embracing continuous learning, you can enhance your programming skills and become a more efficient and effective programmer.

Remember, programming is not just about writing lines of code; it's about solving problems, collaborating with others and creating maintainable software. Embrace the mindset of constant growth, strive for excellence, and never stop learning. With each step you take on this journey, you'll become not only a better programmer but also a true master of your craft.

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<![CDATA[The 6 Stages of Fasting and Their Amazing Benefits]]>Fasting has been practiced for centuries, but only recently it has gained popularity as a way to improve health and promote longevity. There are different types of fasting, but one of the most common is intermittent fasting, where you alternate between periods of eating and fasting.

In this article, we

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https://harduex.com/blog/the-6-stages-of-fasting-and-their-amazing-benefits/644ce586b450b800018bf5b3Sat, 29 Apr 2023 09:50:17 GMT

Fasting has been practiced for centuries, but only recently it has gained popularity as a way to improve health and promote longevity. There are different types of fasting, but one of the most common is intermittent fasting, where you alternate between periods of eating and fasting.

In this article, we will discuss the six stages of fasting and their amazing benefits. Let's dive in.

Stage 1: 8-14 Hours

In the first stage of fasting, your blood sugar starts to stabilize, and your body begins to use up the stored sugar called glycogen. At around the 10th hour, your muscles start to use both glucose and fat for energy, which marks the beginning of the transition from sugar burning to fat burning.

Stage 2: 14-24 Hours

During this stage, the liver starts to turn your fat into ketones, and your cravings start to decrease. You'll notice an increase in energy and improvements in your mood, cognitive function, focus, memory, and concentration.

Stage 3: 24-36 Hours

This stage is where you enter a full ketosis state, and your body starts to burn fat for energy. Your appetite will decrease, and you'll experience a drop in ghrelin hormone, which is why you'll feel less hungry. You'll also experience a spike in brain-derived neurotrophic factor (BDNF), which promotes the growth of new brain cells.

Stage 4: 36-48 Hours

At this point, you'll experience serious autophagy, a process where your body recycles old and damaged proteins, microbes, and other waste into new proteins, fuel, and replacement parts. Autophagy helps your body become more efficient and repairs any damage that has occurred. Additionally, autophagy kills cancer cells and decreases oxidative stress and misfolding proteins, which can lead to chronic inflammation and diseases like Alzheimer's.

Stage 5: 48-60 Hours

During this stage, your insulin sensitivity improves, and you experience more autophagy, less inflammation, and healing from atrophy. Your body is also able to protect your muscles from being used as fuel, and the old, damaged proteins that were recycled in stage four are converted into new proteins to help heal atrophy.

Stage 6: 60-72 Hours

In the final stage of fasting, your immune system experiences regeneration and rejuvenation. A 72-hour fast has been shown to lead to a near-complete rejuvenation of the immune system, and people undergoing chemotherapy experience less damage. Your body produces more undifferentiated immune stem cells, which can help in the production of new immune cells.

Conclusion

The benefits of fasting are incredible, and these six stages show just how amazing the process can be. Fasting helps your body become more efficient, improves cognitive function, decreases inflammation, and promotes longevity. Additionally, fasting can help with weight loss and managing chronic diseases like diabetes and heart disease.

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<![CDATA[How to Use TypeScript Aliases to Clean Up Your Import Statements]]>When working with any technology it is important to maintain your code clean and organized. One way to achieve this in TypeScript is by using TypeScript aliases to shorten and simplify your import statements. In this post, we will go over how to configure and use them to make your

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https://harduex.com/blog/how-to-use-typescript-aliases-to-clean-up-your-import-statements/644788dd11ae450001d0329fTue, 25 Apr 2023 08:22:29 GMT

When working with any technology it is important to maintain your code clean and organized. One way to achieve this in TypeScript is by using TypeScript aliases to shorten and simplify your import statements. In this post, we will go over how to configure and use them to make your code better!

What are TypeScript Aliases?

TypeScript aliases allow you to create a shorter name for a module or file. For example, instead of importing a module using a relative path, you can create an alias and use it instead. This makes your code more readable and easier to maintain.

Setting your aliases

To create an alias in TypeScript, you need to define the paths and baseUrl properties in the compilerOptions section in the tsconfig.json file:

{
  "compilerOptions": {
    "baseUrl": "./src",
    "paths": {
      "@components/*": ["app/components/*"],
      "@services/*": ["app/services/*"],
      "@users/*": ["app/users/*"]
    }
  }
}

In the above code snippet, we have defined three aliases: @components, @services, and @users. The asterisk (*) at the end of each path is a wildcard that allows us to import any file within the specified folder.

How to use them in your code

Now that we have defined our aliases, we can use them in our import statements!

import { Component } from "@components/Component";
import { Service } from "@services/Service";
import { User } from "@users/User";

As you can see, our import statements are much cleaner and easier to read. We no longer need to use the relative path (../../../) to import modules.

Using Barrels

Another way to simplify your import statements is by using barrels.

Barrels are files that re-export multiple modules from a single location. For example, you could create a barrel file named index.ts in the app/components folder with the following code:

export { Component1 } from "./Component1";
export { Component2 } from "./Component2";
export { Component3 } from "./Component3";

Then, you could import all of the components using a single import statement:

import { Component1, Component2, Component3 } from '@component';

This is especially useful when you have a lot of modules to import from a single folder.

Benefits of Using Aliases

The major benefit of using aliases is that it makes your code more readable and easier to maintain. When you move components around or add new ones, you won't need to update your import statements. This can save you a lot of time and effort, especially when working on large projects.

Conclusion

By defining aliases and using barrels, you can make your code more organized, readable, and easier to maintain. If you haven't used aliases before, I highly recommend giving them a try in your next TypeScript project.

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<![CDATA[How to Create Music with Artificial Intelligence using MIDI]]>https://harduex.com/blog/how-to-create-music-with-artificial-intelligence-using-midi/6443b6f28b61800001e053aaSat, 22 Apr 2023 17:54:35 GMT

The use of AI (Artificial Intelligence) has revolutionized our world, including the music industry, allowing musicians to explore new ways of creating music. There are two known ways to use AI to create music - one is to work with raw audio, and the other is to use the symbolic approach, which involves working with MIDI files.

MIDI (Musical Instrument Digital Interface) is a language that allows synths and computers to communicate with each other. MIDI is not only a way of sending signals between devices, but also a way of encoding musical information in a structured and universal format. This makes MIDI a language that AI can learn and understand, just like natural languages or programming languages. MIDI files also don't hog up too much space in your memory, making it easy to train AI networks with them.

The first approach is to convert raw audio into MIDI. Basic Pitch is a free audio-to-MIDI converter developed by Spotify that can detect pitch bends. It's a powerful tool for converting raw audio to MIDI. For instance, if you have an audio recording of a John Coltrane gig that features only an upright bass and a piano, you can effortlessly convert this audio into MIDI by uploading the file to Basic Pitch. The tool will convert it to MIDI in no time.

Once you have the MIDI file, you need to use a Digital Audio Workstation (DAW) to load the file on a MIDI track and assign an instrument to it. There are many DAWs on the market, but Ableton Live is a popular choice. With Ableton Live, you can assign any instrument to the MIDI track, and it will play it.

But what if you want to create music from scratch using AI? Magenta Studio is a collection of open-source tools and models built on Magenta, which uses cutting-edge machine learning techniques for music generation. Continuator is one of the tools that uses AI to create new music. It takes a melody as input and generates new melodies based on that input. You can use Continuator to create new melodies, chord progressions, and drum patterns.

Another exciting tool that allows you to incorporate MIDI into your AI projects is This MIDI does not exist. It uses AI to generate new MIDI files based on existing ones. The tool generates a new MIDI file every time you refresh the page, allowing you to explore different variations of the same melody.

Apart from just MIDI, AI can also help with audio editing and making remixes. LALAL.AI is a powerful tool that can extract stems from audio tracks without any loss in quality. You can separate the vocal, instrumental, drums, bass, piano, electric guitar, acoustic guitar, and synthesizer tracks from a song. Then you can feed the Basic Pitch with some beats that you like and extract MIDI files from them and generate variations using Magenta Studio big set of tools!

Another amazing AI tool for stems extraction is Vocalremover.org. It's a free online tool that separates vocals from instrumentals. It uses AI to create karaoke versions of songs and provides two tracks - a karaoke version with no vocals and an acapella version with isolated vocals. With some post audio processing and polishing, you can extact pretty good quality beats and acapellas for your mixes!

In conclusion, using AI to create music has never been more interesting. With tools like Basic Pitch, Magenta Studio and This MIDI does not exist, you can explore new ways of creating music and push the boundaries of what is possible. So why not give it a try and see where AI can take your music?

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<![CDATA[Chromaticism in Modern Music: How to Create Unique and Mysterious Sounds]]>https://harduex.com/blog/chromaticism-in-modern-music-how-to-create-unique-and-mysterious-sounds/643fb5b030e6c600018b159fWed, 19 Apr 2023 10:07:30 GMT

Today, I'm going to talk about chromaticism in music and how you can use it to make your tracks sound more interesting and unique.

Chromaticism means using notes that are not in the key you're playing in. For example, if you're playing in A minor, which has no sharps or flats, you can add notes like C#, D#, F#, G#, or A#. These notes create contrast and tension with the notes in the key.

Chromaticism can add color and expression to your melodies and harmonies. You can use chromatic notes to create passing tones, neighbor tones, suspensions, appoggiaturas, or escape tones. These are all types of non-harmonic tones, which means they don't belong to the chord that is playing at the moment. They create a sense of movement and resolution when they resolve to a harmonic tone.

Chromaticism can also help you change keys or modes. You can use chromatic notes as pivot points or common tones between two keys or modes. For example, if you're in A minor and you want to switch to C major, you can use C# as a pivot point. You can play a chord progression like Am - Dm - E - A - C#dim - F - G - C. The C#dim chord is a type of chord that leads to F, which is the subdominant of C major. By using this chord, you can transition smoothly from A minor to C major.

You can hear examples of chromaticism in classical music from composers like Bach, Mozart, Beethoven, and Chopin. But, it's not just for classical music. Chromaticism is also used in modern music to create interesting and unique sounds. Music producers use chromaticism to express their feelings. For example, the intro music for the TV show Westworld is based on a chromatic scale that starts from A minor and goes up by half steps until it reaches A# minor. The composer Ramin Djawadi, who also composed the music for Game of Thrones, uses  chromaticism and dissonance to create a sense of mystery, urgency, anticipation, tension and suspense. His music uses both orchestral and electronic instruments, and it creates a contrast between classical and modern elements, as well as between organic and artificial sounds.

The other technique called dissonance is the use of chords or intervals that sound harsh or unstable. Electronic music producers use dissonance to create a sense of friction and conflict in their tracks. For example, they might use dissonant intervals like minor seconds, which are only one half step apart, to create a jarring effect.

In summary, chromaticism and dissonance are useful tools for classic and modern music producers. It is used to add contrast, tension, uniqueness and color to the music tracks. You can use chromaticism to modulate to different keys or modes. Additionally, dissonance can can be used to create a sense of tension and suspense.

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