(Encyclopedia) virtual observatory, a collection of integrated astronomical data archives and software tools that utilize computer networks to create an environment in which research can be conducted…
WAVES AND PARTICLESLIGHTHOUSETRANSMISSION OF LIGHTLIGHT SOURCESSHADOWSFIND OUT MORELight makes the world seem bright and colourful to our eyes. Light is a type of electromagnetic radiation that…
(Encyclopedia) Ammanati, BartolomeoAmmanati, Bartolomeobärtōlōmĕˈō äm-mänäˈtē [key], 1511–92, Italian sculptor and architect. He studied under Bandinelli in Florence and assisted Jacopo Sansovino in…
(Encyclopedia) Primaticcio, FrancescoPrimaticcio, Francescofränchāsˈkō prēmätētˈchō [key], 1504–70, Italian painter, called Le Primatice by the French. He was influenced by Correggio and by…
(Encyclopedia) Raimondi, MarcantonioRaimondi, Marcantoniomärkäntôˈnyō rīmônˈdē [key], b. c.1480, d. before c.1534, Italian engraver. In Venice he was influenced by Dürer to such an extent that he…
(Encyclopedia) Castiglione, Baldassare, ConteCastiglione, Baldassare, Contebäldäs-säˈrā kōnˈtā kästēlyōˈnā [key], 1478–1529, Italian soldier, author, and statesman attached to the court of the duke…
(Encyclopedia) Campi, GiulioCampi, Giulioj&oomacr;ˈlyō kämˈpē [key], c.1500–c.1572, Italian painter and architect, founder of a school of painters at Cremona. He was a pupil of his father,…
(Encyclopedia) neutron star, extremely small, extremely dense star, with as much as double the sun's mass but only a few miles in radius, in the final stage of stellar evolution. Astronomers Baade…
PUZZLE FOR THE EYEREFRACTION IN HEAT HAZEMIRAGEFIND OUT MORELight rays usually travel in straight lines, but when they pass from one material to another they can be forced to bend (change…
Source: The National Aeronautics and Space Administration (NASA) The diameter of our closest star, the Sun, is 1,392,000 kilometers. The Sun is thought to be 4.6 billion years old. The Sun is a…
