तुम सब हो मेरा

तुम सुबह तुम शाम हो मेरा..
तुम शुरुआत तुम अंत हो मेरा..
तुम जमीं तुम आसमां हो..


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Dual nature of light

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The Science of Mirages We’ve all seen that part in the movie where the weary desert wanderer has been walking for hours and is dying of thirst. Then he happens upon a vast body of water on the horizon. He runs towards the water, it grows closer and closer, until he springs himself into the air only to land back down in the sand and no water in sight. You might think the traveler was hallucinating, but mirages are a naturally-occurring optical illusion. In cartoons, a mirage is often depicted as a peaceful, lush oasis lying in the shade of swaying palm trees, but in reality it is more likely to just look like a pool of water. How do mirages form? Mirages really have nothing to do with water at all. It’s really all about how light travels through air. Normally, light waves from the sun travel straight through the atmosphere to your eye. But, light travels at different speeds through hot air and cold air. Mirages happen when the ground is very hot and the air is cool. The hot
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why does diamond shine???????

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