# Latest Einstein field equations Stories

## Latest Einstein field equations Reference Libraries

2004-10-19 04:45:41

Cosmological Constant -- The cosmological constant (usually denoted by the Greek capital letter lambda: Î›) is a value occurring in Einstein's theory of general relativity. The units of Î› are 1/second2; its value is unknown but believed to be positive based on recent observations. The constant is proportional to the energy density of the vacuum Ï, where Ï€ is Pi, G is the gravitational constant and c is the speed of light in vacuum. The term can be postive, negative, or...

Word of the Day

donative

- A gift; a largess; a gratuity; a present; a dole.

The word 'donative' comes from a Latin word meaning 'to give'.

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