METAL GROUPSGOLD IN QUARTZEXTRACTING GOLDMETALLIC PROPERTIESALLOYSFIND OUT MOREAlmost three-quarters of all elements are metals, such as gold and silver. There are also some elements we may not…
ON THE ALERTTOUCH-SENSITIVE FEELERSVISIONHEARINGSMELLFIND OUT MORETo find food, mate, avoid danger, and communicate, animals rely on information gathered by their senses. Information is…
WHERE DID THE FIRST MODERN HUMANS LIVE? WHO WERE NEANDERTHALS AND WHY DID THEY DISAPPEAR? HOW DID MODERN HUMANS REACH OTHER AREAS? FLINT-KNAPPINGABORIGINALSFIND OUT MORE Homo sapiens sapiens…
Notable Irish Writers A-F | G-O | S-Y To be an artist is to fail, as no other dare fail, that failure is his world and the shrink from desertion, art and craft, good…
(Encyclopedia) space medicine, study of the medical and biological effects of space travel on living organisms. The principal aim is to discover how well and for how long humans can withstand the…
+ BODY SYSTEMS INTEGUMENTARY SYSTEM MUSCULAR SYSTEM SKELETAL SYSTEM CIRCULATORY SYSTEM NERVOUS SYSTEM LYMPHATIC SYSTEM RESPIRATORY SYSTEM ENDOCRINE SYSTEM DIGESTIVE…
(Encyclopedia) magic, in religion and superstition, the practice of manipulating and controlling the course of nature by preternatural means. Magic is based upon the belief that the universe is…
(Encyclopedia) endocytosisendocytosisĕnˌdōsītōˈsəs [key], in biology, process by which substances are taken into the cell. When the cell membrane comes into contact with a suitable food, a portion of…
(Encyclopedia) strontiumstrontiumstrŏnˈshēəm [key] [from Strontian, a Scottish town], a metallic chemical element; symbol Sr; at. no. 38; at. wt. 87.62; m.p. 769℃; b.p. 1,384℃; sp. gr. 2.6 at 20℃;…
