Category Archives: Nugget of Knowledge

Making your own Arduino Board

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The most important part of Arduino Uno R3 (the board that you are using) is ATMega328 chip. It is the micro-controller of the board. A micro-controller can be thought of as a mini-computer. It has a processor, RAM and execution capabilities. So if we get ATMega328 can we build an arduino board by ourselves? Lets […]

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CBSE KTPI Module 1 – Astronomy in India

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Today I was digging around with old Indian texts about astronomy when I found this. Note: This passage from a Brāhmaṇa (a commentary on the Veda, of uncertain date, perhaps about 1000 BCE) appears to show an awareness of the sphericity of the earth, since there is always a part of it exposed to daylight. It […]

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Nugget of Knowledge: The science of swing delivery

Its the IPL season and I am pretty sure you guys are enjoying the matches. However, there is always room for jello! Well, if not jello, then there is always room for some Science! 😉 Getting off the IPL mood lets look at some 2005 Ashes footage. This was one of my childhood curiosities! Why […]

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Nugget of Knowledge – Differential Drive in Automobiles

I am pretty sure we all know how trucks look like. They look something like this – My childhood curiosity was this – All vehicles had them and it looked so out of place. I wondered what it did. I was sure it was part of the transmission and helped in driving the rear wheels […]

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Nugget of Knowledge : Cloaking paint

How cool would it be if you could just paint yourself and become invisible? Reminds me of one of the Tom and Jerry episodes! 😉 University of Michigan has developed a cloaking paint that can do just that. Here is a video: Awesome, right? 😉 What this paint does is that it creates a layer above […]

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Nugget of Knowledge: Magnet falling through a copper pipe

This is also the answer to ScrapLabs Challenger – #2 The Challenger: http://blog.scraplabs.in/?p=119 The Winners: http://blog.scraplabs.in/?p=167 This can be best explained in two ways – via electromagnetic induction and conservation of energy. I’ll explain using both. Electromagnetic induction Note that we have two hands which are mirror image of each other. Note that when electricity is generated […]

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Nugget of Knowledge: Insect vs Human strength

All my childhood I wondered how ants could lift things many times their weight and we, humans, couldn’t lift half of what we weighed! Looks like I finally have an answer. This post was provoked by a riddle asked by a student of mine named Shriram T.G. You can read his riddle here. The reason […]

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Nugget of Knowledge: Iron in food

  Having been tormented by my parents for forcefully eating spinach (palak) all my childhood for it contained iron, I really wondered if it had any truth in it. After conducting some experiments on iron-rich cereal, looks like I finally have an answer!   Interesting right? 🙂 A few things you can ponder upon (or […]

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Nugget of Knowledge: Fluorescence & Phosphorescence

I was taught that we can see objects as light falling on them is reflected and enters our eyes. Now, I was very freaked out at this concept of things entering my eyes without me knowing about them. So I shut my eyes tightly to prevent the light from entering them. I was also taught that luminous […]

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Nugget of Knowledge: Wood Gas for Driving Vehicles

This is also the answer to ScrapLabs Challenger – #1 The Challenger : http://blog.scraplabs.in/?p=41 The Winners : http://blog.scraplabs.in/?p=106 The solution to this challenger is rather amazing! Wood, say match-stick, is basically very close to hydrocarbon (like sugar). So when it burns it burns like any other hydrocarbon substance would! It is a two-step process. The carbon and […]

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