TRANSMITTING TELEVISION SIGNALSSTRIPED SCREENFLAT SCREENDIGITAL TELEVISIONFIND OUT MORETelevision converts the image from a camera lens into a stream of data that can be sent down a cable or…
Prehistoric Eggs The earliest fossil animal embryos, dating from the Precambrian era, were found by American, Taiwanese, and Chinese scientists in phosphate deposits in China's Guizhou province.…
Ancestor of Mammals Discovered The fossil skull of a 260-million-year-old sheep-sized animal was found near Williston on the Northern Cape, South Africa. It is the most primitive member yet…
—Borgna BrunnerVital Stats of the Universe In one of the most important cosmological discoveries in years, NASA scientists have captured the most precise image of the universe, shedding light on…
(Encyclopedia) aloealoeălˈō [key] [Gr.], any species of the genus Aloe, succulent perennials of the family Lilaceae (lily family), native chiefly to the warm dry areas of S Africa and also to…
(Encyclopedia) Franklin, Rosalind Elsie, 1920–58, English molecular biologist and chemist, grad. Newnham College, Cambridge (1941). She spent most of the war years (1942–45) working for the British…
(Encyclopedia) green flash or emerald flash, a refractive phenomenon of the atmosphere where the top edge of the setting (or, less frequently, rising) sun will momentarily turn emerald green. The…
(Encyclopedia) atomic number, often represented by the symbol Z, the number of protons in the nucleus of an atom, as well as the number of electrons in the neutral atom. Atoms with the same atomic…
(Encyclopedia) Yonath, Ada E., 1939–, Israeli crystallographer, Ph.D. Weizmann Institute of Science, Rehovat, Israel, 1968. Yonath has been a researcher and professor at the Weizmann Institute since…
