What is the secret behind feeling momentarily weightless in an elevator? Do we really weigh as much as our weighing scale shows us? A little elevator physics made simple.  
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This freshwater dolphin is found in the two great river systems of south Asia: the Ganga in India and the Indus in Pakistan. It has eyes but no sight and judges distances through echoes. And its numbers are decreasing.  
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We allow most of our rain water to run into the drains. Simple rural techniques of water storage show us how we can actually use this water in the dry months.  
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A glass of water kept in the sun becomes boiling hot, but water in an earthen pitcher is refreshingly cool. How does the earthen pitcher keep water cool?  
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New research shows that tickling the tiny hair on the hind legs of grasshoppers make them swarm and turn into dangerous locusts. These locust swarms can travel across countries and are capable of stripping a field in a matter of hours.  
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Sunlight carries heat with it. This heat is enought to melt ice, but ice is transparent. Sunlight penetrates thick layers of ice without making it melt.  
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Everything that goes up has to come down. That is why it is only a matter of time before a satellite too, comes back to earth.  
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A submarine is a type of boat which can travel either on or under water. The principle that air is lighter than water is what makes this possible.  
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Look at a cat fall from a height. You expect it to hurt itself, but it doesn't. This is because cats have an in-built mechanism to adjust their position during a sudden fall.  
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Like computers, our bodies have a software code called the genetic code which makes it run.  
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Customer: Do you call this a full meal? You served me twice as much yesterday.

Waitress: Where did you sit yesterday?

Customer: By the window.

Waitress: Oh, that's why. We do that for advertising purposes - it gives people passing by the impression that this is a good restaurant!

More Jokes

What is the difference between the Prince of Wales and a tennis ball?

Answer

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