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Military Applications:
Another area where the above mentioned properties of lasers are being used with a 'deadly' precision is that of military applications. Lasers have been pressed into the service of the global war machine. A whole range of laser weaponry has come into being, for use on land, on sea and in space. X-ray lasers that can cany enormous energy have been developed. Efforts are on to install.deadly laser weapons in satellites. The same technology could be used to destroy factories, forests, farms and habitation. It is certainly a matter of concern, to see so much human effort and wealth being used to turn the laser technology into an instrument for mankind's destruction. Every effort should be made to stop this misuse of technology.
Water pressure changes with depth Use the funnel and manometer which you made in the last experiment. Fill a tall glass jar or pail with water. Calculate the pressure just belo
Another way to show that air expands when heated Snap a toy balloon over the neck of a small bottle and place the bottle in a pan of warm water.
Freezing by Contact with a Cooled Gas Different methods are available for freezing by contact with cooled gas. These include: i) Cabinet Freezing: This method involves ci
To study a hailstone When it hails, collect some of the hailstones. Cut them in half and view how the ice of the hailstone has been built up in layers. If you live in a region
Environment and Waste Minimisation Your first assessment will cover the design of a monolith reactor for the VOCs removal. Therefore, you are asked to do the following:
Photochemical Smog: Photochemical smog, a secondary Pollutant, results when the two pollutants, nitrogen oxide and hydrocarbons found in automobile exhausts, react with
Explain the Reflex control - Movements of Gall Bladder Reflex control: During digestion, reflex stimulation of gall bladder takes place. Entry of acid into the duodenum reflex
Slight Bleeding : Frequently, the bleeding stops of its own accord or is easily controlled by local pressure. The procedure for first aid treatment is as follows: (1) Reassure
Air pollution by Carbon monoxide: Carbon monoxide is produced when organic materials such as gasoline, coal, charcoal, and trash are incompletely burnt. Virtually all stoves,
1. The output of a single neuron is given by y = f(w 1 x 1 +w 2 x 2 +w 0 x 0 ), where x 1 and x 2 are inputs, x 0 has the constant value 1, w 0 , w 1 and w 2 are parameters
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