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One kilowatt-hour is equivalent to the energy of 1,000 joules used for 3,600 seconds or 3.6 million Joules. In equation form: 1 kWh = 3.6 million J

Colin Albert Murdoch ONZM was a New Zealand pharmacist and veterinarian who made a number of significant inventions, in particular the tranquilliser gun, the disposable hypodermic syringe and the child-proof medicine container.

The crowning achievement of Pasteur was the successful application of the principle of vaccination to the prevention of rabies, or hydrophobia, in human beings and developed Pasteur rabies vaccine in 1885.
During the mid-to late 19th century Pasteur demonstrated the microorganisms cause disease and discovered how to make vaccines from weakened, or attenuated, microbes.
He develops the earliest vaccines against fowl cholera, anthrax, and rabies.

Voltic Cell was invented by Alexandro Volta in 1800 and Dry cell was invented by George Leclanche in 1860.

? The property of a liquid by which forces are exerted between layers so as to reduce their relative motion is called viscosity.

? The liquids flow in different layers. The layer at the top will be flowing with maximum velocity.

? The lower layer will be flowing with lesser and lesser velocities.

? The reason for this change in velocity from layer to layer is the frictional force between liquid layers.

? Different liquids possess different viscosity.

? Liquids of large viscosity are called viscous liquids. Ex: Glycerine, Honey, Castor oil etc

? Liquids of small viscosity are called mobile liquids. Ex: Water, Kerosene etc

? The viscosity of an ideal fluid is zero.

Study of Plant communities in relation to their habitats of a given ecosystem is called as Synecology.

Plankton is an important source of food for larger animals. Phytoplankton is the first link in the food chain. They are known as primary producers because they produce the first forms of food. Zooplankton and other small animals that graze on the phytoplankton are known as primary consumers.

Malleability is a physical property of metals that defines their ability to be hammered, pressed, or rolled into thin sheets without breaking.
Almost all metals shows malleability.
Gold is the most malleable of all metals; a single gram can be beaten into a sheet of 1 square meter, and an ounce into 300 square feet.
Gold leaf can be beaten thin enough to become transparent.

One such unique element in the group of transition metals is Titanium. It is a metal that has an atomic number 22.
It is an element of transition series. It is known as wonder metal because of its low density and high tensile strength.

Tobacco smoke contains a radioactive chemical element called polonium-210. It’s the same substance that poisoned the Russian Alexander Litvinenko in London two years ago..

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