time modulated beam
101Radio — is the transmission of signals, by modulation of electromagnetic waves with frequencies below those of visible light.Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of… …
102Anti-frogman techniques — are security methods developed to protect watercraft, ports and installations, and other sensitive resources both in or nearby vulnerable waterways from potential threats or intrusions by frogmen or other divers.Risks and threats to be defended… …
103Field emission display — A field emission display (FED) is a display technology that incorporates flat panel display technology that uses large area field electron emission sources to provide electrons that strike colored phosphor to produce a color image as a electronic …
104Optical microscope — Microscope Uses Small sample observation Notable experiments Discovery of cells Inventor Hans Lippershey Zacharias Jans …
105Whale song — is the sound made by whales to communicate. The word song is used in particular to describe the pattern of regular and predictable sounds made by some species of whales, notably the humpback. This is included with or in comparison with music, and …
106Forward planning — is a technique used in external beam radiotherapy to produce a treatment plan. In forward planning, a treatment oncologist places beams into a radiotherapy treatment planning system which can deliver sufficient radiation to a tumour while both… …
107Starstreak (missile) — Starstreak redirects here. For the Marvel comics superheroine named Starstreak, see Julie Power. Starstreak Starstreak missile on display at the Africa Aerospace Defence exposition, September 2006 …
108Diffraction grating — A very large reflecting diffraction grating. In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions. The directions of these beams …
109Pockels effect — The Pockels effect, or Pockels electro optic effect, produces birefringence in an optical medium induced by a constant or varying electric field. It is distinguished from the Kerr effect by the fact that the birefringence is proportional to the… …
110Inductive output tube — The inductive output tube or IOT is a variety of vacuum tube which evolved in the 1980s to meet increasing efficiency requirements for high power RF amplifiers. The primary commercial use of IOTs is in UHF television transmitters, where they have …
