See and hear : the journal on audio-visual learning (1945)

;iUT— Tlic plate ulicrc one scene in a film Slops and anotlicr scene starts withotit any "tricks" (fades or wipes) . ).C.— Direct current. Most projectors operate on A.C. You may need a con\(ilii if (urront is D.C. )I.S.St)l,\ I'.— I lie place where one scene dissolves into the following scene. .Ml'I.SIONThe gelatin with cmbedtied siUer which forms the image. [XCri'ER— 1 he lamp which shines through the sovnid track to the photoelectric cell in the soiuid projector. ".\ HE— The place where one scene of a film gradually fades into or out of view. ■R.AME (noun) —A single complete scene on the film. "RAMP, (verh) — The centering of the scene on the screen. Done by turning a small knob or lever on the projector. "REQIENCV— The value scale of stauul tones such as liigh, low and medium. Measured in kilocycles. ISE— .A small, low-melting-point wire in a projector which melts and stops the current flow if too much electricity enters the projector or if a short circuit develops. i.VTE— The hinged retainer plate which holds the film firmly against the aperture in a projector. iEL.VTIN— The gelatinous coating on the film which holds the silver image. \f.VGE — A photographically obtained likeness on a film emulsion. CARRATION-Sce \oice Over. )SClLLOGRAPH-A testing device to check the frequency of vibration and hence the capability of an amplifier in handling various frequencies. 'OL.\RITY — The direction in which electric current flows. D.C. projectors must receive current in the right direction. Wrong polarity can be corrected by withdrawing and reversing position of the plug. lEEL (spool) —A spool on which film is wound and capable of being put onto a projector. Can be for any film capacity whatever. ;EE and HEAR— March REEL (of film) -A unit of (dm length (100 ft. of 16 mm. film) . I. 2. 3, 4 or any fractional luimber of reels can be wound on a reel (spool) . RELE.A.SE— A generic term for films in tended for general distribution. REWIND (lutun) — .\ cranking device for wintling film on a reel (spool) . REWIND (verb) -To wind a film after it comes o(f the projector onto another reel so that the title is at the outside (loose end) and the film is ready for reshowing. SOUND TRACK-The portion of the film (edge) on whidi the sound is recorded. It may be of varying degrees of density, or of varying area of clear stock with black borders. .SPLICE (noun) —The place where two strips of film overlap and are cemented together. SPLICE (\crb) — To make a splice of two strips of film. SPROCKET-The toothed wheels on the projector which engage the film and guide or pull it through the machine. SPROCKEF HOLES-The holes along the edge of film that are engaged by the sprocket wheels of the projector. Silent films have them on each edge. Sound films on one edge only. STROBOSCOPE A neon lamp and rotating disc testing device to check the speed of projectors. STOCK— (film) Consists of the base and an emulsion of gelatin and silver. TRICK— Any method used to end one scene and begin another. Also any method of having more than one scene in the frame at the same time. WIPE— The place in a film where one scene moves out of the frame and another moves into it. VOICE OVER-Any sound where the words are not synchronized with the lip movements of the actors in the film. VOICE SVNC-Any soiuid where the words are synchronized with lip movements of the actors. Page 93