physical constant

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Sailboat against a beautiful landscape

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earthquake. Heavily damaged school in the town of Yingxiu after a major earthquake struck China's Sichuan Province on May 12, 2008.

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Secret Service Agent Listens To Earpiece

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Small, white rat (genus Rattus) on a glass table. (rodent, laboratory, experiment)

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In this aerial photo, structures are damaged and destroyed October 15, 2005 in Balakot, Pakistan. It is estimated that 90% of the city of Balakot was leveled by the earthquake. The death toll in the 7.6 magnitude earthquake that struck northern Pakistan on October 8, 2005 is believed to be 38,000 with at least 1,300 more dead in Indian Kashmir. SEE CONTENT NOTES.

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King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

The Lost Colony of Roanoke, North Carolina, where 115 people mysteriously disappeared c. 1590. John White discovers the word Croatoan carved onto a tree upon his return to the deserted Roanoke Colony in 1590

The Lost Colony of Roanoke

physical constant: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Facts

Also Known As	universal constant • fundamental constant

Topics

dielectric constant Planck’s constant Rydberg constant universal gas constant solar constant Boltzmann constant speed of light decay constant electron charge faraday time antimatter molecular beam vector mole quantum radiation chemical bonding mechanics chemical element

Key People

Arthur Stanley Eddington.

Arthur Eddington

British scientist

Quiz

Italian-born physicist Dr. Enrico Fermi draws a diagram at a blackboard with mathematical equations. circa 1950.

Physics and Natural Law