academy aperture
21light — light1 lightful, adj. lightfully, adv. /luyt/, n., adj., lighter, lightest, v., lighted or lit, lighting. n. 1. something that makes things visible or affords illumination: All colors depend on light. 2. Physics …
22Edward Hoagland — Infobox Writer name = Edward Hoagland imagesize = 180px birthdate = Birth date and age|1932|12|21 birthplace = New York, New York occupation = essayist, novelist nationality = American genre = nature, travel writing, literature Edward Hoagland… …
23Aristotle — For other uses, see Aristotle (disambiguation). Ἀριστοτέλης, Aristotélēs Marble bust of Aristotle. Roman copy after a Gree …
24telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …
25Jim Webb — Infobox Officeholder name = Jim Webb imagesize = 150px small jr/sr = Junior Senator state = Virginia term start = January 3, 2007 term end = alongside=John Warner predecessor = George Allen successor = order2 = 66th United States Secretary of the …
26Search for extraterrestrial intelligence — The search for extraterrestrial intelligence is sometimes abbreviated as SETI. For other uses, see SETI (disambiguation). Screen shot of the screensaver for SETI@home, a distributed computing project in which volunteers donate idle computer power …
27Environmental scanning electron microscope — Wool fibers imaged in an ESEM by the use of two symmetrical plastic scintillating backscattered electron detectors …
28CinemaScope — was an anamorphic lens series used for shooting wide screen movies from 1953 to 1967. Its creation in 1953, by the president of 20th Century Fox, marked the beginning of the modern anamorphic format in both principal photography and movie… …
29Great Observatories program — Four Great Observatories satellites NASA s series of Great Observatories satellites are four large, powerful space based telescopes. Each of the Great Observatories has had a similar size and cost at program outset, and each has made a… …
30Dale Purves — Born 11 March 1938 (1938 03 11) (age 73) …
