(Encyclopedia) polarization of light, orientation of the vibration pattern of light waves in a singular plane.
Unpolarized light can be converted into a single polarized beam by means of the Nicol…
WHAT DOES A LENS DO? WHAT IS THE DIFFERENCE BETWEEN A MICROSCOPE AND A TELESCOPE? CONVEX LENSCONCAVE LENSFIND OUT MOREWhen you look through a magnifying glass, or take a picture with a camera, you…
(Encyclopedia) observatory, orbiting, research satellite designed to study solar radiation, electromagnetic radiation from distant stars, the earth's atmosphere, or the like. Because the atmosphere…
(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…
(Encyclopedia) Brown, John Carter, 1797–1874, American book collector and philanthropist, b. Providence, R.I.; son of Nicholas Brown. In about 1840 he began collecting books printed before 1800…
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) Paskevich, Ivan FeodorovichPaskevich, Ivan Feodorovichēvänˈ fyôˈdərəvĭch pəskyĕˈvĭch [key], 1782–1856, Russian army officer and administrator. He fought in the Napoleonic Wars, was…
(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…
