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16 results for "spectrum" in Creator.

Found in catalogs (23)

• Educational Screen 1957-1958 — page 1264

  …It carries on through a high fidel- ity amplifier (balanced response over the entire audible frequency spectrum). And it culminates in the new Pan…

• Educational Screen 1933 — page 254

  …film Itself being emulsloned with ordinary black-and-white emulsion, the primary colors, (giving every hue and nuance of the spectrum) being imbedded In

• Educational Screen 1938 — page 330

  …Startling evidence also appears that bees, unlike humans, can actually distinguish the ultra-violet beyond the spectrum, by similar manipulation of two white cards…

• Educational Screen 1946-1947 — page 442

  …Sir Isaac Newton made the discovery that light passing through a prism will be separated into the colcrs of the spectrum. Animations illustrate how…

• Educational Screen 1951,1952,1953 — page 148

  …Infra-red film is sensitive to invisible infra-red rays in the spectrum. The flashbulb is dipped in a lacquer that permits only these…

• Educational Screen 1944-45 — page 655

  …signment of a frequency modulation wave length in the high frequency spectrum allotted to education. A Committee on Radio Education, composed of teachers and…

• Educational Screen 1932 — page 287

  …Filters allow the light of their own color to pass through and retard the other colors of the spectrum. Therefore red filters admit red…

• Educational Screen 1930-1931 — page 105

  …The spectrum of different gases is thus easily observed. The distillation of water, a flame test for various metals and the oxo-hy- drogen…

• Educational Screen 1926-1927 — page 290

  …process and we can pro- duce all the colors in the spectrum from the red over to the blue-green. But we cannot reproduce…

• Educational Screen 1933 — page 64

  …in producing greater sensitivity to the infra-red portions of the spectrum "have made possible re- searches previously quite impractical, and have ex- tended…

• Educational Screen 1944-45 — page 350

  …ment of a frequency modulation wave length in the high frequency spectrum allotted to education. A Committee on Radio Education, composed of teachers and…

• Educational Screen 1951,1952,1953 — page 176

  …allo- cations give educators what amounts to an option on the spectrum space assigned to various locations. The of- ficial pronouncement makes it clear…

• Educational Screen 1924-1925 — page 226

  …nature appear to have entered into a conspiracy to cheat the spectrum of all'but its primary colors. A field of daisies, the riot…

• Educational Screen 1957-1958 — page 1234

  …For more information circle 232 on coupon Fluorescent Lighting Data Sheet for use of Anscochrome and Super Ansco- chrome, under discontinuous spectrum lighting. Filter…

• Educational Screen 1932 — page 286

  …It is sensitive to all the colors of the spectrum, having an excess of sensitivity to blue. Its speed is sufficient for most purposes…

• Educational Screen 1938 — page 254

  …The optical principles of refracted light and color sense The refracting prism can be used to produce the spectrum of the electric arc. The…

• Educational Screen 1938 — page 183

  …Infra-red photography has been re- cently improved as to speed, and sensitivity into the invisible red region of the spectrum. These heat rays…

• Educational Screen 1946-1947 — page 492

  …The rays that came out of the opposite end of the prism represented the visible spectrum ranging from red near the apex to violet…

• Educational Screen 1954,1955,1956 — page 1328

  Travel the complete Sound spectrum withTANDBERG... the world's finest tape recorder! • 3 SPEEDS 1^8, 3Vt, 7'A I.P.S. • STYLED TO…

• Educational Screen 1957-1958 — page 1224

  …Having a broad spectrum of utilization, here is a film- strip for purchase for the local church's AV library. (FF) In the same…

• Educational Screen 1957-1958 — page 1284

  …It has a high sensitivity to red and to in- frared as well as good response in the visible spectrum. Direct Release by Broodman…

• Educational Screen 1944-45 — page 34

  …The five are among the choicest channels in the spectrum; they adjoin the 35 channels set aside for com- mercial broadcasting. But unless educators…

• Educational Screen 1941 — page 156

  …and green in combination does not fully match that of the spectrum. The three basic pigmen- tary colors are, roughly, red, yellow and blue…