Only people with sniper-like vision can spot plane flying through sky in seconds
This puzzle will put your eyesight to the ultimate test as it challenges you to spot an airplane that has seemingly ...
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The blue colour of sky has nothing to do with colour of the ocean, it is blue due to...
On a bright, clear day, the sky stretches above us in a brilliant shade of blue. But have you ever wondered why? The answer lies in a fascinating phenomenon known as Rayleigh scattering ...