Exact solutions in general relativity Reference Libraries
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...
- Sleep; the state or condition of being asleep.
- The state or condition of numbness of a part due to pressure on a nerve: as, the obdormition of a limb.