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This video explains what laser light is, how it originates, and how it is used. Shows how lasers are widely used today in industral applications as well as in medical and surgical procedures. The video also...
1: carbon dioxide and other gases in the atmosphere. Describeds some of the features of current models including uncertanties introduced by could and ocean absorption. 2: introduces nuclear radiation and...
Looks at how lasers and fibre optics were to revolutionise communications technologies. Features a dramatised account of the effect of these new technologies on everyday life.
Illustrates the need for safety precautions when using lasers in the laboratory. Discusses laser radiation and the body, classes of laser, safety measures, other risks and precautions.
Concerned with the use of modern semi-conductor devices to produce light for fibre-optic communication systems. Using computer animations, discusses some of the more important properties of light-emitting...
A laser is usable light made into a beam of energy. It has many qualities such as burning away a birthmark without breaking the skin, which makes it invaluable in modern surgery. Demonstrates how lasers can...
The relationship between electronic energy levels and the emission or absorption of radiation is explained through readily observable examples from ‘the real world’. Includes an explanation of how the...
Looks at the users of lasers in telecommunications and medicine and their possible use in America’s ‘Star Wars’ programme. In medicine lasers are used in delicate eye operations and in general surgery...
A review of non-surgical methods of treating bleeding ulcers and blood vessels in the digestive tract. Emphasis is on the thermal methods, particularly the use of ‘state-of-the-art’ electrodes and laser...
Discusses the theory of lasers and their construction beginning with examples of the wide range of their applications. A He-Ne laser is used to explain how the high energy helium atoms in collision with neon...
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