make+less+dense
91Jupiter — This article is about the planet. For other uses, see Jupiter (disambiguation). Jupiter   …
92Mount Pinatubo — The eruption column of Mount Pinatubo on June 12, 1991, three days before the climactic eruption. Elevation …
93Rare Earth hypothesis — In planetary astronomy and astrobiology, the Rare Earth hypothesis argues that the emergence of complex multicellular life (metazoa) on Earth required an improbable combination of astrophysical and geological events and circumstances. The term… …
94photoreception — photoreceptive, adj. /foh toh ri sep sheuhn/, n. the physiological perception of light. [1905 10; PHOTO + RECEPTION] * * * Biological responses to stimulation by light, most often referring to the mechanism of vision. In one celled organisms such …
95rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …
96diagnosis — /duy euhg noh sis/, n., pl. diagnoses / seez/. 1. Med. a. the process of determining by examination the nature and circumstances of a diseased condition. b. the decision reached from such an examination. Abbr.: Dx 2. Biol. scientific… …
97Kenya — Kenyan, adj., n. /ken yeuh, keen /, n. 1. a republic in E Africa: member of the Commonwealth of Nations; formerly a British crown colony and protectorate. 28,803,085; 223,478 sq. mi. (578,808 sq. km). Cap.: Nairobi. 2. Mount, an extinct volcano… …
98Earth exploration — Introduction the investigation of the surface of the Earth and of its interior. By the beginning of the 20th century most of the Earth s surface had been explored, at least superficially, except for the Arctic and Antarctic regions. Today the… …
99Cheetah — This article is about the animal. For other uses, see Cheetah (disambiguation). Cheetah[1] Temporal range: Late Pliocene to Recent …
100Radiator — Radiators and convectors are types of heat exchangers designed to transfer thermal energy from one medium to another for the purpose of cooling and heating. The majority of radiators are constructed to function in automobiles, buildings, and… …
