Television What? The transmission of visual images and accompanying sound through electrical and sound waves. Who? John Logie Baird was a Scottish engineer.

Television• What? The transmission of visual images and

accompanying sound through electrical and sound waves.

• Who? John Logie Baird was a Scottish engineer and inventor of the world's first working television system.

• Where? In Hastings, England• When? 1923• Why? At the time TV was created, the government

wanted to get the message of fear out to the public on a broader level. As many already know, it has proven to work this day. And to give you a way to be informed of what is going on around you.

Microwave Oven• What? A microwave oven is a kitchen appliance

that heats food by dielectric heating. This is accomplished by using microwave radiation to heat polarized molecules within the food.

• Who? Percy LeBaron Spencer (9 July, 1894 – 8 September, 1970) was an American engineer and inventor. He became known as the inventor of the microwave oven.

• Where? America• When? 1941• Why? Microwave oven is invented so that people

in rush will cook faster and heat left over foods.

Radio• What? The transmission of sounds or signal by

electromagnetic waves through space, without wires, to a receiving set.

• Who & when? Gugliegmo Marconi was an Italian inventor, and was (at first) credited with the invention of the radio, but he was later proven to have used 17 of Nikola Tesla's patents. In 1943, the radio patent was given to Nikola Tesla for radio transmission.

• Why? To meet the need and to communicate over distances. Later, it was adapted for other uses, such as news and entertainment, but its primary purpose was for communication for people such as ships' captains.

Computer• What? An electronic device that processes data

in accordance with programmed instructions.• Who? English mathematician Charles Babbage

(1792–1871) designed a mechanical computing machine called the "analytical engine."

• Where? London, England• When? 1837• Why? Computers were made to do the very

tedious computations of everyday life and business.

Telephone• What? An instrument for transmitting speech

at a distance, specially by means of electricity.• Who? Alexander Graham Bell, a Scottish-born

inventor, scientist, philanthropist and a teacher, is the person most widely credited as the inventor of the electric telephone.

• Where? Salem, Massachusetts• When? March 7th 1876• Why? To allow communication between two

distant people.