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Who, what, where, when & how - Now displaying 91 to 100
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Who stole the Candle Wax?
The size of a candle reduces as it burns. But where does all the wax disappear? To unravel this secret you need to know what a candle is made of. Read on ...
What is the Ozone Hole?
The cricketer or the person on the beach wears that 'white paint' as protection against the harmful rays of the sun. This increased exposure to these rays is because human actions have reduced the earth's safety blanket of the ozone layer. Read on ...
Why do Aeroplanes have Wings?
Be it the condor (eagle) or the Concorde, their flying feats stem from their wings. To understand how it happens you have to realise the power of the wind that rushes past the wings... Read on ...
What does a Train Whistle Tell Us about the Universe?
Ever noticed how an approaching train's whistle gets louder, fading as it moves away? The scientist Doppler studied this mystery. Wonder of wonders, his discovery - the Doppler effect - can also be used to understand the secret of our expanding universe. Read on ...
Why do Meteorites Strike the Earth?
In the same way as a fast-moving carom striker hits the coins, many small rocks and heavenly objects encircling the sun head for the earth, attracted by its gravitational pull. When they hit the earth, it can sometimes be fatal - they made the dinosaurs extinct. Read on ...
A Swing in the Tale
Why does a cricket bowl swing? Is it magic or does it have a science behind it. Read and find out. Read on ...
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How is Jelly Formed?
Cool and sweet, that red transparent blob of jelly looks so inviting. You know what makes it set so? It's gelatine, which in turn is made from an animal tissue called collagen. Read on ...
Naming Stars
Did you ever think you could pay and buy a star? Sounds strange, doesn't it? Well, it is happening! Read on ...
Why does Milk spill over when it Boils?
Very often when you put the milk to boil, it spills. Have you wondered why this happens? Read on ...
What Happens After an Earthquake?
An earthquake can change the topography of a region. The greatest land mountain range and the long undersea mountain range below the Pacific and Antarctic Oceans are the aftermath of enormous quakes that rocked the earth. Read on ...
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