The talkies (1930)

Page scan 00081 from The talkies

Record Details:

Title:
The talkies
Date:
1930
Publisher:
London: Crosby Lockwood and Son
Volume:
The talkies
Leaf #:
00081
Language:
English
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
August 29, 2024
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THETALKIES 49 Picture magnates of to-day who are relying on empirical experiments and the tolerance of to-day's cinema audiences, will regret in the not too distant future that, in their rush to exploit the public's excited appreciation of the novelty of the Talking Picture, they did not have the enterprise to devote some time, and at least a proportion of the huge funds which have been entrusted to their care, to wringing from reluctant nature that last fraction of efficiency which is the difference between that which will do for the time being and that which will stand the test of time and the ever-growing scrutiny of public discrimination. There are various methods of externally controlling the amount of light falling on the film. One of these relies on the property of certain liquids to alter their optical characteristics under the influence of electrical potentials, others on various forms of electrically operated shutter devices. These shutters are of various types. If a fine wire is stretched between the poles of a magnet and is supplied with fluctuating electrical impulses it will move slightly from side to side. If this wire is therefore placed before a suitably narrow slit so that when it is at rest it closes that slit, any movement which it makes will allow light E