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Who, what, where, when & how - Now displaying 71 to 80
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Which Book Carries its Own Light?
It has long been known that when certain materials absorb energy, they may throw it back in the form of light. Scientists are using these materials to create books which emit light and can be read even in the dark. Read on ...
How do Animals Communicate?
Animals are capable of long distance communication. And they don't require any electronic devices to do so. Read on ...
Which Galaxy is Visible to the Eye?
The Andromeda galaxy is the nearest and the brightest galaxy. It is twice as big as our Milky Way. You can actually see it on any clear winter night. Read on ...
How can We Use Water to run Cars?
Is it possible to run a car on water? No, it is not a joke, the fuel cell does exactly that - it converts water into electricity. Read on ...
What is Geothermal Energy?
Deep inside the earth most of the material remains in a super heated molten state. Scientists are now using this heat to generate electricity. It is free and clean. Read on ...
How is Paper Perfumed?
Nowadays, you can sometimes sample a perfume advertised in a magazine, in the advertisement itself. Ever wondered how this happened? Read on ...
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What is Cotton Candy?
A trip to a fair feels incomplete without having a sweet, fluffy cotton candy. The cotton candy is actually nothing but sugar spun into tiny threads. Read on ...
Why is the Ball-point Pen Called So?
The ink used in a ball-point pen is thicker than the ink used in a fountain pen. The pen writes because a tiny ball placed at the tip of the ball-point pen rotates when we write.. Read on ...
Why does Cola Fizz?
Cola is among the favourite drinks in the world. Its sweet tangy taste is something everyone likes. Actually the cola gets its fizz from the carbon dioxide dissolved in it. Read on ...
Why do Some Snore More than Others?
Snoring is a common sleep disorder. It occurs when the muscles at the back of throat relax during sleep. Read on ...
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