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Do You Know
Questions & Answers on General Knowledge.

What is infrared light?
Infrared, visible, and ultraviolet light are all electromagnetic waves. However these waves differ in both their wavelengths (the distances between adjacent maximums in their electric fields) and in their frequencies (the number of electric field maximums that pass by a specific point in space each second). Infrared light has longer wavelengths and lower frequencies than visible light, while ultraviolet light has shorter wavelengths and higher frequencies than visible light. We can't see infrared or ultraviolet lights because the cells of retinas aren't sensitive to these lights. Nonetheless, we can often tell when those lights are present—we may feel infrared light as heat on our skins and we may find ourselves sunburned by ultraviolet light.
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  • Problems Only 00s Girls Will Understand

    Hairy Scary Problems

    You love doing up your hair in small braids each tucked up neatly with a colorful clip. It leaves your hair so tangle free and easy to maintain so that you do not mind spending hours to get the style right. But if this kind of a gadget, as the purple one shown in the picture were to get anywhere near your hair, it would be the end of all that crowning glory You certainly dont want your neatly braided hair to get anywhere near it. It will only damage your hair and its styling. So mom, please keep it away from my carefully done hair, will you?

    Chourishi Systems