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Dennis Gabor
Encyclopedia entry from: Encyclopedia of World Biography
...to an object, the other to a mirror. Both would initially have the same wavelength and be in phase (coherent), but upon reflection from the object and the mirror back to the photographic plate...electron beams. The beam from the mirror would be unchanged, but the...
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Looking Glass
Encyclopedia entry from: Encyclopedia of Espionage, Intelligence, and Security
...aircraft used are equipped to fulfill, or "mirror" all functions normally performed on the ground. In the initial phase of the mission, anticipating possible...developed. Looking Glass at work. This mirror operation of SAC ground control went...
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Breast Self-Exam
Encyclopedia entry from: Gale Encyclopedia of Cancer
...changes through the use of a mirror. Purpose BSE should be performed...day each month. The first phase of the BSE is to disrobe and stand in front of a mirror, observing the breast area...nipple discharge. The second phase of the BSE is performed lying...
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interference
Book article from: The Columbia Encyclopedia, Sixth Edition
...same time and are in the same phase, i.e., when the condensations...if they are of opposite phase. This canceling is known as...cancel depending upon their phase relationship. In the case...light had a half-silvered mirror to split an incident beam of...beam were then reflected off mirrors ...
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Sir William Herschel
Encyclopedia entry from: Encyclopedia of World Biography
...That this entry heralded a new phase in his life is shown by the...his first (metal) telescope mirror. Herschel's First Telescope...grinding and polishing telescope mirrors. He had to keep the mirror moving unceasingly on the grinding...10 feet and about 80 20 feet mirrors." Of the various ...
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Intelligence
Encyclopedia entry from: Encyclopedia of Espionage, Intelligence, and Security
...single step. In the processing phase, raw data is converted into...collected; in the processing phase, these numbers may be put into...graph, while in the production phase, an analyst determines overall...Martin, David C. Wilderness of Mirrors. New York: Harper &...
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SIC 1793 Glass and Glazing Work
Encyclopedia entry from: Encyclopedia of American Industries
...glass doors; cut and install mirrors and safety glass; create custom...primarily limited to windows, mirrors, optical lenses, and containers...remainder used to make signs, mirrors, solar panels, and other...industry included a new "two-phase" adhesive glazing technique...
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Versailles
Encyclopedia entry from: Europe, 1450 to 1789: Encyclopedia of the Early Modern World
...magnificent chateau evolved in three major phases. The Sun King first intended Versailles...Mansart who designed the legendary Hall of Mirrors. Running almost the entire length of...western facade, the gallery was sheathed in mirrors, furnished with solid silver chandeliers...
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Herschel, William
Encyclopedia entry from: U*X*L Encyclopedia of World Biography
...triangles]." That this entry marked the start of a new phase in his life is shown by the fact that it is followed by others...that he was proposing to make his first (metal) telescope mirror. Joined by his sister, Caroline, Herschel began constructing...and he invested money in building machines to help grind ...
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seismic body waves
Book article from: The Oxford Companion to the Earth
...produce interfaces which reflect seismic body waves like a mirror and refract them like a lens (Fig. 2a). The body waves...observed to travel along particular paths are referred to as phases and are given labels, such as PcP, PkP, Pn, and PmP in...the outer core, thus establishing that it is liquid. The ...
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