Alloy:-
A metal produced by the combination of two or more metallic elements, usually to achieve greater strength or resistance to corrosion.
Atom:-
The basic unit of a chemical element, made up of varying numbers of protons, electrons and neutrons.
Kerosene:-
Originally a trade name for a lamp oil, the term is now generic and refers to a combustible hydrocarbon liquid used to propel jet engines and fuel domestic heating. Usually referred to as "paraffin" in the United Kingdom and South Africa.
Radio Activity:-
The emission of ionizing radiation of particles from an unstable atomic nucleus.
Ultraviolet:-
A form of electromagnetic radiation in the form of light with shorter wavelengths than X-rays. It is invisible to the human eye but just beyond violet in the color spectrum. A certain amount of ultraviolet light is needed by the human body to stimulate the production of Vitamin D, though too much causes sunburn.
Volt:-
A measure of the force of electricity, named for Alessandro Volta, the Italian Physicist who developed the first electric cell in 1800.
Watt:-
A measure of the rate of energy converted by an appliance: for example, the electrical energy that a light bulb converts into light. Named for James Watt, the nineteenth-century inventor of the steam engine.
RADAR:-
"Radar" is an acronym for Radio Detection and Ranging. It helps to detect the objects and its distance from the beginning object by the help of electromagnetic waves. For example: the submarine uses these Radar signals to find the cleared path or detecting objects under the water surface.
DNA:-
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic coding for all living organisms. DNA usually exists as a pair of DNA molecules twisted together in a double helix.
Infra Red:-(IR radiation)
Electromagnetic radiation that has a wavelength just greater than that of the red end of the visible light spectrum. It is emitted by heated objects and can be picked up by infrared cameras.
A metal produced by the combination of two or more metallic elements, usually to achieve greater strength or resistance to corrosion.
Atom:-
The basic unit of a chemical element, made up of varying numbers of protons, electrons and neutrons.
Kerosene:-
Originally a trade name for a lamp oil, the term is now generic and refers to a combustible hydrocarbon liquid used to propel jet engines and fuel domestic heating. Usually referred to as "paraffin" in the United Kingdom and South Africa.
Radio Activity:-
The emission of ionizing radiation of particles from an unstable atomic nucleus.
Ultraviolet:-
A form of electromagnetic radiation in the form of light with shorter wavelengths than X-rays. It is invisible to the human eye but just beyond violet in the color spectrum. A certain amount of ultraviolet light is needed by the human body to stimulate the production of Vitamin D, though too much causes sunburn.
Volt:-
A measure of the force of electricity, named for Alessandro Volta, the Italian Physicist who developed the first electric cell in 1800.
Watt:-
A measure of the rate of energy converted by an appliance: for example, the electrical energy that a light bulb converts into light. Named for James Watt, the nineteenth-century inventor of the steam engine.
RADAR:-
"Radar" is an acronym for Radio Detection and Ranging. It helps to detect the objects and its distance from the beginning object by the help of electromagnetic waves. For example: the submarine uses these Radar signals to find the cleared path or detecting objects under the water surface.
DNA:-
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic coding for all living organisms. DNA usually exists as a pair of DNA molecules twisted together in a double helix.
Infra Red:-(IR radiation)
Electromagnetic radiation that has a wavelength just greater than that of the red end of the visible light spectrum. It is emitted by heated objects and can be picked up by infrared cameras.
