(Encyclopedia) multiplication, fundamental operation in arithmetic and algebra. Multiplication by a whole number can be interpreted as successive addition. For example, a number N multiplied by 3 is…
(Encyclopedia) heat, nonmechanical energy in transit, associated with differences in temperature between a system and its surroundings or between parts of the same system.
The study of heat and…
This glossary of Norse Mythology gives brief descriptions of the many characters involved in the stories and legends of Norse mythology. Aesir: Chief gods of Asgard.Andvari: Dwarf; robbed of…
(Encyclopedia) radiumradiumrāˈdēəm [key] [Lat. radius=ray], radioactive metallic chemical element; symbol Ra; at. no. 88; mass number of most stable isotope 226; m.p. 700℃; b.p. 1,140℃; sp. gr. about…
Size in the MicrocosmTheories of the UniverseForces, Particles, and Some Cosmological GlueSize in the MicrocosmThe Forces You Already KnowThe Particle ZooThe Last Train to Quarkville I'd like to…
(Encyclopedia) heat capacity or thermal capacity, ratio of the change in heat energy of a unit mass of a substance to the change in temperature of the substance; like its melting point or boiling…
Panda Babies Offer Hope New arrivals for an endangered species by Holly Hartman Announcing: Panda Babies! Born: twins, August 3; cub, August 6; twins and cub,…
(Encyclopedia) columnist, the writer of an essay appearing regularly in a newspaper or periodical, usually under a constant heading. Although originally humorous, the column in many cases has…
