Calcium was known to ancient Indians. Sukra Neethi Sastra contains many formulas having
calcium.

Robot uses servo motors and servomechanisms.

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Components of Robots:

The actuators are the 'muscles' of a robot; the parts which convert stored energy into movement. By far the most popular actuators are electric motors, but … Read more

Traditional biology does not have an answer for this. Astronomers found a new universal energy called Dark
Energy.

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Organisms use this universal medium for transferring energy from one to another.