Einstein's Bouquet Buy art from  : Einstein Price: $190.00 Description: The cosmological constant (usually denoted by the Greek capital letter lambda: Λ) occurs in Einstein's theory of general relativity. The units of Λ are 1/second2. The constant is proportional to the energy density of the vacuum ρ: where: π is pi G is the gravitational constant c is the speed of light in vacuum Dimensions: 36.0" wide and 72.0" tall Weight: 15.00 lbs