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15 Cards in this Set

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Who invented Air Conditioning ?

Carrier in 1902

Who invented Barometer ?
Evangelista Torricelli of Italy in 1644
Who invented Ball-Point Pen ?
John J. Loud of U.S.A. in 1888
Who invented DNA Structure ?
Crick(UK), Waston(US), Wilkins(UK) in 1951
Who invented Laser ?
Sir Frank Whittle of Britain in 1937
Who invented Locomotive ?
Benjamin Franklin of U.S.A. in 1752
Who invented Logarithms ?
John Napier

Toothbrush

William Addis , England

FM radio

Edwin Howard Armstrong , USA

Portland cement

Joseph Aspdin , UK
During World War II, Who led the team that succeeded in breaking German high-level secret codes?
Alan Turing. was the mathematician who in 1937 suggested a theoretical machine, since called a Turing Machine, that became the basis of modern computing. During World War II, Turing led the team that succeeded in breaking German high-level secret codes, using the first practical programmed computer, called Colossus. In 1950 he suggested what has become known as "the Turing test," which is still the criterion for recognizing intelligence in a machine. (To describe the test simply: can a human, in a blind conversation, tell the difference between a human and a computer posing as a human?)


WHO WAS THE FIRST PERSON TO SEE GERMS?
The first microscopes were made in the Netherlands in about 1590. Their design was improved by Robert Hooke and Anton van Leeuwenhoek. Van Leeuwenhoek made many important observations and in 1675 was the first person to see bacteria, or germs.
WHO DISCOVERED HOW BLOOD CIRCULATES?
In 1597, English student William Harvey went to Padua in Italy, which was then a center for studying the human body. He returned to become royal doctor, and in 1628 declared that blood was pumped around the body by the heart. Many doctors ridiculed his views, but Harvey was correct. His discovery changed our understanding of the human body forever.
oxygen
Joseph Priestley -1774
REFLECTING TELESCOPE
Telescopes were invented in the Netherlands in about 1608. In 1668, Isaac Newton was the first to use mirrors to improve the image seen through the telescope.