What is Fleet Street in London known for?

London's Fleet Street, named after the river Fleet which flows at one end of the street, had many legal offices and courts surrounding it in the late 15th century. From 1500s onwards, several publishing and printing shops began locating themselves on Fleet Street to serve the legal offices in its neighbourhood. From 1702, when

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What is the R V Park concept?

R V Park stands for Recreational Vehicle Park. Such parks have facilities for parking of vehicles used by a tourists, at a nominal fee. Thus, the tourists can travel, cook, eat and sleep in the specially-designed road vehicles, eliminating the need for hotels and restaurants. This makes tourism very economical. Such parks are

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Why is liquid ammonia used in ice plants?

Liquid ammonia acts as a refrigerant in ice plants. Evaporation of a liquid needs heat energy. When liquid ammonia vapourizes, it absorbs large quantities of heat without changing its temperature. For these reasons, ammonia is widely used as a refrigerant. About 17 g of liquid ammonia absorbs 5,700 calories of heat from the

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Why is calcium sulphate hemihydrates called Plaster of Paris?

Plaster of Paris is obtained by heating gypsum or calcium sulphate dihydrate to about 140-180 degree Celsius. When heated to such a temperature, gypsum forms Plaster of Paris. The name is derived from the large deposits of gypsum in the Montmartre hill in Paris.

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What is 'cyclotron'?

What is 'cyclotron'?

The cyclotron, developed by Lawrence and Livingston in 1932, is a machine that accelerates charged particles like protons, so that they can be used in atom-smashing experiments. Because the principles of this accelerator are involved in the cyclic motion of charged atomic particles in a uniform magnetic field, the device is called cyclotron.

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What is a carrotmob?

What is a carrotmob?

A carrotmob is an event where environmentalists queue up to buy goods from a shop which goes green. This is a sort of incentive for their intentions. The concept uses the carrot and stick method, hence 'carrot mob'. Environmentalists mob a 'green' store for mass purchases as a reward. This is planned in advance and executed as an event.

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What is cliff diving?

Cliff diving is the act of diving from a high cliff into a river, lake or ocean below the cliff. It has been practised as an unorganized activity both for recreation and other purposes. It is an organized sport, with large-scale competitions held in several places of the world. Cliff diving is classified as an extreme sport because of the inherent dangers.

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How does a mobile tracker work?

Mobile phone tracking relies on the use of triangulation -taking signal strengths registered from the mobile phone at a minimum of three nearby GSM receiver masts. As the mobile phone companies know the position of each mast, and can tell the signal strength of your phone at each of these nearby masts, they can use this to calculate the position to a certain degree of accuracy, within about 50-100 meters.

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What is a cryosurgery?

It is the technique of using extreme rapid cooling to freeze tissues, thereby destroy them. Rapid cooling to temperature below freezing point produces irreversible cell damage and cell death occurs at -20 to -90 degree Celsius. Freezing produces white areas of necrosis. It is applied in the treatment of malignancies, vascular tumours and aggressive tumours.


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