Tech Rumination by Anirudh Vempati

Welcome to the world of display technology, where screens are more than just visual platforms. They are a blend of science and art, bringing images to life in vibrant colours and sharp contrasts.  From the sandwich-like structure of LCDs and LEDs to the firefly-like pixels of OLEDs and AMOLEDs, each screen type has its own unique story and characteristics. Whether it’s the affordability of LCD/LED screens, the stunning colour and contrast of OLEDs, the brightness of QLEDs, or the flexibility and speed of AMOLEDs, there’s a display for every need and budget. So, let’s dive in and explore these fascinating technologies together. LCD (Liquid Crystal Display) : Think of LCD as a sandwich. The “bread” is two layers of glass and the “filling” is a layer of special liquid crystals. These crystals can either let light through or block it, which helps create the picture on the screen. LED (Light Emitting Diode) : LED is just a fancy version of LCD. It’s still a sandwich, but instead of using a

Hello, tech enthusiasts! Today, we’re going on a thrilling journey through the world of commonly found charger connectors. So buckle up, and let’s dive right in! USB Type-A: The Classic First up, we have the  USB Type-A . This is the classic rectangular  charger connector that most of us are familiar with. It’s like the bread and butter of the digital world. You’ll find it on computers . It’s been around for a while and is not going anywhere soon! Micro USB: The Little Giant Next, we have the  Micro USB . Don’t be fooled by its size; this little charger connector packs a punch! It’s commonly found on older smartphones, tablets, and many other portable devices . It’s smaller and thinner than the USB Type-A , making it a perfect fit for our compact gadgets . USB Type-C: The New Kid on the Block Moving on, we have the  USB Type-C . This is the new kid on the block, quickly becoming the standard for new devices. It’s reversible (so no more fumbling around trying to plug it in the right way

Tech Rumination by Anirudh Bouncing into the Vibes of General Relativity Imagine you're at a park, and there's a big trampoline there. Now, think of this trampoline as the fabric of space-time, a concept from Einstein's theory of general relativity. Space-time is like a huge blanket that stretches across the universe. When something with mass, like a planet or a star, sits on this blanket, it creates a dip or a curve. This is similar to standing in the middle of a trampoline causing it to sag. So, when a smaller object, like a marble, is rolled across the trampoline, it will move towards the heavier ball at the center, not because there's a mysterious force pulling it, but because the shape of the trampoline is curved. So, in simple terms, according to Einstein’s General Theory of Relativity, gravity is not a for

Have you ever wondered why, even though our bodies can conduct electricity, we can't be part of a small LED circuit? Firstly, it's true that our bodies can conduct electricity because they contain lots of water and salts, which are good conductors. However, for an LED circuit to work properly, it needs a very specific amount of electricity. Our bodies cannot control how much electricity they conduct, so if we were part of an LED circuit, we might let through too much or too little electricity. This could either break the circuit or not let the LED light up. Our bodies have resistance, which means they resist the flow of electricity to some extent. This resistance is actually good for us because it protects us from getting hurt by small amounts of electricity. So, while we can conduct electricity, we're not suited to be part of an LED circuit like a copper wire would be. It's important to always be safe around electricity! So, while our bodies can conduct electricity, th

 If you have ever wondered what is inside a non-rechargeable AA battery, this blog post will give you some answers. Non-rechargeable batteries cannot be recharged once they are depleted. They are commonly used in devices that require low to moderate current, such as remote controls, flashlights, toys, and clocks. There are different types of non-rechargeable AA batteries, depending on the chemistry of their electrodes and electrolyte. The most 2 common ones are: Alkaline batteries : These batteries have a zinc anode and a manganese dioxide cathode, with an alkaline electrolyte of potassium hydroxide. They have a nominal voltage of 1.5 V. They are widely available and relatively cheap.   Lithium iron disulfide batteries : These batteries have a lithium anode and an iron disulfide cathode. They have a nominal voltage of 1.5 V. They are more expensive than alkaline batteries, but they offer longer shelf life and better performance in low temperatures. They are often used in digital camera

If you are looking for a fun and easy way to introduce children to the world of robotics, electronics, and programming, consider checking out Witblox. Witblox is a gamified robotics learning platform for children aged 8 to 16, providing plug-and-play hardware like Legos and a mobile app to help them learn. What is Witblox? Witblox is an electronic building block for endless innovations, designed and developed by TechShiksha. Witblox consists of various modules which they call "blox", such as sensors, lights, sounds, motors, switches, etc., that can be connected like Legos to create any kind of electronic logic or circuit. Children can use Witblox to make different robots, electronic circuits, applications, projects, and innovations, without worrying about soldering or wiring. Witblox also has a mobile app that offers engaging comic stories for kids to learn faster, along with DIY videos for step-by-step tutorials. U