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measurement
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Understanding Heisenberg's uncertainty principle in subatomic particles
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measurement summary
Quizzes
barometer. Antique Barometer with readout. Technology measurement, mathematics, measure atmospheric pressure
Fun Facts of Measurement & Math
Garden in front of Mao Zedong Memorial Hall where Mao's body rests in state at Tiananmen Square, one of the largest public squares in the world, Beijing, China. Near the Forbidden City. Mausoleum.
Largest, Tallest, and Smallest Around the Globe Quiz
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Centimetres vs inches, metal rulers on a white background with clipping path.
15 Questions About Units of Measurement Answered
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Happy, smiling, flying pig
7 Everyday English Idioms and Where They Come From
Drinking water is poured into a glass.
Water Fluoridation: Just the Facts
Cathedrale St.Jean in Lyon, France has a 14th-century astronomical clock that shows religious feast days till the year 2019; Perpetual Calendar
Ten Days That Vanished: The Switch to the Gregorian Calendar
Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere
Why Do Some Cicadas Appear Only Every 17 Years?
King Cobra snake in Malaysia. (reptile)
9 of the World’s Deadliest Snakes
Figure 13: A Maxim machine gun, belt-fed and water-cooled, operated by German infantrymen, World War I.
7 Deadliest Weapons in History

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Understanding Heisenberg's uncertainty principle in subatomic particles
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Key People

Carl F.W. Ludwig, detail of an engraving
Carl F.W. Ludwig
German physiologist
Henry Maudslay
British engineer and inventor
Edmund Gunter
English mathematician
Sir Jagadish Chandra Bose.
Sir Jagadish Chandra Bose
Indian plant physiologist and physicist
Edward Weston
Edward Weston
American engineer and industrialist
George Dollond
British optician
Jesse Ramsden
British tool maker
Six astronomers, after Gerard Hoet (1692)
Hipparchus
Greek astronomer
Tycho Brahe
Tycho Brahe
Danish astronomer
Edmond Halley
Edmond Halley
British scientist
Friedrich Wilhelm Bessel
Friedrich Wilhelm Bessel
German astronomer
Jean-Sylvain Bailly
Jean-Sylvain Bailly
French astronomer
Ernst Mach
Austrian physicist
Norman Robert Campbell
British physicist and philosopher
Gerard Peter Kuiper
American astronomer
Anders Jonas Ångström
Swedish physicist
Joseph Loschmidt
Austrian chemist
Pierre Bouguer
French scientist
Stephen Hales
Stephen Hales
English scientist
Johann Lambert, detail of a lithograph by Gottfried Englemann, after a portrait by Pierre-Roch Vigneron
Johann Heinrich Lambert
Swiss-German scientist and philosopher

Related Quizzes and Features

Quiz
barometer. Antique Barometer with readout. Technology measurement, mathematics, measure atmospheric pressure
Fun Facts of Measurement & Math
Garden in front of Mao Zedong Memorial Hall where Mao's body rests in state at Tiananmen Square, one of the largest public squares in the world, Beijing, China. Near the Forbidden City. Mausoleum.
Largest, Tallest, and Smallest Around the Globe Quiz
Three graduated beakers with yellow, blue and gree fluid on white background. Chemistry measurement, science experiment, science demonstration
Measurement Mania
List
Centimetres vs inches, metal rulers on a white background with clipping path.
15 Questions About Units of Measurement Answered