Image for Testing Newton's gravity theory

Testing Newton's gravity theory

Duration: 05:43

Although Newton's Law of Universal Gravitation is a good approximation of gravity, more precise measurements of the Moon's orbit show it is not a perfect explanation.

Available since: Thu 12 Aug 2010

This clip is from

Horizon 2007-2008, What on Earth is Wrong With Gravity?

Dr Brian Cox believes that the answer to the meaning of the universe lies in gravity.

First broadcast: 29 Jan 2008

Image for What on Earth is Wrong With Gravity? Not currently available on BBC iPlayer

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