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semiconductor
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conductivities periodic table semiconductor bonds electron hole: movement p-n junction characteristics solar energy; solar cell
Learn about the mining and purification of silicon
For Students
semiconductor summary
Quizzes
cigar. cigars. Hand-rolled cigars. Cigar manufacturing. Tobacco roller. Tobacco leaves, Tobacco leaf
Building Blocks of Everyday Objects
battery. Illustration of battery connected to lightbulb. Power a light bulb with a battery. Battery, Power Supply, Science, Circuit, Currents
Electricity: Short Circuits & Direct Currents
Discover
July, 2006, Launch of Space Shuttle Discovery STS-121. See attached for full caption information.
Will Light-Speed Space Travel Ever Be Possible?
Agnes with a lamb near her feet. St. Agnes (Saint Agnes) design drawing for stained glass window by J&R Lamb Studios, ink, mount size 10.5 x 14.5 in.
Roman Catholic Saints
All Saints Day. All Souls Day. Candles in cemetery in Poland on All Saints Day, November 1. All Souls Day, November 2. Christian church, All Hallows, Solemnity of All Saints, Feast of All Saints, purgatory, Roman Catholic church
7 Unique Burial Rituals Across the World
Space race (1957-1969) infographic between United States (U.S.) and Russia. America, Soviet Union, U.S.S.R., space exploration
Timeline of the Space Race, 1957–69
Statue of Nostradamus
Nostradamus and His Prophecies
African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.
Timeline of the American Civil Rights Movement
Ice Sledge Hockey, Hockey Canada Cup, USA (left) vs Canada, 2009. UBC Thunderbird Arena, Vancouver, BC, competition site for Olympic ice hockey and Paralympic ice sledge hockey. Vancouver 2010 Olympic and Paralympic Winter Games, Vancouver Olympics
10 Best Hockey Players of All Time

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Photos and Videos

conductivities
periodic table
semiconductor bonds
electron hole: movement
p-n junction characteristics
solar energy; solar cell
Learn about the mining and purification of silicon
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Key People

Haldane, Duncan
Duncan Haldane
British-born American physicist
Brattain
Walter H. Brattain
American physicist
Yves-André Rocard
French mathematician and physicist

Related Quizzes and Features

Quiz
cigar. cigars. Hand-rolled cigars. Cigar manufacturing. Tobacco roller. Tobacco leaves, Tobacco leaf
Building Blocks of Everyday Objects
battery. Illustration of battery connected to lightbulb. Power a light bulb with a battery. Battery, Power Supply, Science, Circuit, Currents
Electricity: Short Circuits & Direct Currents