EUROPEAN SOUTHERN OBSERVATORYMAUNA KEA OBSERVATORYVERY LARGE ARRAYFIND OUT MOREOptical observatories study the visible radiation (light) from objects in space, and most are located high up on…
(Encyclopedia) Coolidge, William David, 1873–1975, American physical chemist, b. Hudson, Mass., grad. Massachusetts Institute of Technology, 1896. He joined the General Electric Company in 1905 and…
OCEAN WAVESBIOGRAPHY: HEINRICH HERTZ German, 1857-1894ELECTROMAGNETIC SPECTRUMSEISMIC WAVESFIND OUT MOREMany different kinds of energy travel in waves. Sound waves carry noises through the air to…
(Encyclopedia) cosmic rays, charged particles moving at nearly the speed of light reaching the earth from outer space. Primary cosmic rays consist mostly of protons (nuclei of hydrogen atoms), some…
Born: 1889Birthplace: Murom, Russia Cathode ray tube—Zworykin invented the iconoscope, a television transmitting tube and the kinescope, a cathode ray tube that projects pictures it receives onto a…
Born: 1926Birthplace: New York City Diagnostic x-ray systems—Ledley developed the ACTA diagnostic x-ray scanner, the first whole-body computerized tomography (CT) machine. He was the first to do…
PARTS OF THE EYE IMAGE FORMATION FROM EYES TO BRAIN CHANGING PUPIL SIZE COLOUR VISION FIND OUT MORE
Whenever we are awake, our eyes work constantly to collect information about the world.…
Forces, Particles, and Some Cosmological GlueTheories of the UniverseForces, Particles, and Some Cosmological GlueSize in the MicrocosmThe Forces You Already KnowThe Particle ZooThe Last Train to…
(Encyclopedia) Karle, JeromeKarle, Jeromekärl [key], 1918–2013, American physicist, b. New York City, Ph.D. Univ. of Michigan, 1943. He worked on the Manhattan Project before beginning a career (1946…
