Agate is good protective energy stone, especially for children, and is very calming and soothing. It also can help strengthen the body's connection to the earth.
The friction factor, f, is a dimensionless factor that depends primarily on the velocity u, diameter D, density Ï, and viscosity Î·. It is also a function of wall roughness which depends on the size Îµ, spacing Îµ' and shape of the roughness elements characterized by Îµ''.
The Energy Factor, or EF, is a performance metric that determines the efficiency of appliances such as clothes washers, dishwashers and hot water heaters. Energy Factor is an older metric that preceded the Modified Energy Factor (MEF), which is in use as of 2013. These figures are calculated for washing machine brands in an effort to determine whether the model qualifies for an Energy Star rating.