impinging
61Homo economicus — This article is about an economic concept. For a journal, see Homo Oeconomicus. Homo economicus, or Economic human, is the concept in some economic theories of humans as rational and narrowly self interested actors who have the ability to make… …
62Kilkenny — For other uses, see Kilkenny (disambiguation). Kilkenny Cill Chainnigh   City   …
63Fluorescent lamp — A fluorescent lamp or fluorescent tube is a gas discharge lamp that uses electricity to excite mercury vapor. The excited mercury atoms produce short wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light.Unlike… …
64Shock wave — Bombshock redirects here. For the Transformers character, see Micromasters#Bombshock. For other uses, see shockwave. Schlieren photograph of an attached shock on a sharp nosed supersonic body. A shock wave (also called shock front or simply shock …
65Polaroid — For the Polaroid instant camera, see instant camera. For the company, see Polaroid Corporation. For the Phantom Planet album, see Polaroid (Phantom Planet) Polaroid is the name of a type of synthetic plastic sheet which is used to polarize… …
66Nocturnal emission — This article is about the biological function. For the sound art group, see Nocturnal Emissions. For fictional works, see Wet Dream (disambiguation). A nocturnal emission involves either ejaculation during sleep for a male, or lubrication of the… …
67Cold cathode — This article is about light sources and indicators. For cold cathode ion sources, see Ion source. CCFL redirects here. For other uses, see CCFL (disambiguation). Cold cathode fluorescent lamp A cold cathode is a cathode used within nixie tubes,… …
68Cryopump — A cryopump is a vacuum pump that traps gases and vapours by condensing them on a cold surface. They are only effective on some gases, depending on the freezing and boiling points of the gas relative to the cryopump s temperature. They are… …
69Leonard Cheshire — Infobox Person name =Leonard Cheshire image size =228px caption =Geoffrey Leonard Cheshire, Baron Cheshire c.1945 birth date =birth date|1917|9|7|df=y birth place =Chester, England known for = VC winner, Charitable organizations death date =death …
70Ionizing radiation — consists of highly energetic particles or waves that can detach (ionize) at least one electron from an atom or molecule. Ionizing ability depends on the energy of the impinging individual particles or waves, and not on their number. A large flood …
