16th May 2016

Three eyelids for protection

Camels have three eyelids. They have upper and lower eyelids that have eyelashes to shield the eyes from sand. In addition, camels have a third eyelid, which is thin like a transparent membrane. It opens sideways, from both sides, like a shutter. Camels can see through this third eyelid during sandstorms.

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21st April 2016

The fastest moving muscle in the human body

The fastest moving muscle in the human body is the one that closes the eyelid. This muscle is called the orbicularis muscle. The opening or closing of the eye, or the blink of the eye, was used for measuring time in ancient India. The Vedic texts designated the blink of an eye as a nimish. One nimish, according to the modern mathematical calculations, is 0.2133 seconds.

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