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The Pascaline was designed and built by the French mathematician-philosopher Blaise Pascal between 1642 and 1644.

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Portable timekeeping device of great accuracy, particularly one used for determining longitude at sea

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China launched world's first Earth Science Satellite named “Guangmu” China has launched the world's first Earth-science satellite, Guangmu or SDGSAT-1 into space from the Taiyuan Satellite Launch Center in the northern Shanxi Province.

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The Mars Science Laboratory mission's Curiosity rover landed in Mars' Gale Crater the evening of August 5, 2012.

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Sputnik V vaccine is made by Russia

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The earliest known audio tape recorder was a non-magnetic, non-electric version invented by Alexander Graham Bell's Volta Laboratory and patented in 1886.

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Scotsman John Dunlop developed the first practical pneumatic tire in 1888.

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Explanation

Joseph F. Glidden was born in New York on Jan. 18, 1812.

He invented barbed wire in 1873 and was granted the patent on Nov. 24, 1874.

Gidden  known as the "Father of Barbed Wire".

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The atmospheric pressure at any place is measured by a Barometer

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The barometer was invented by Evangelista in 1644.

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