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Italian-born physicist Dr. Enrico Fermi draws a diagram at a blackboard with mathematical equations. circa 1950.
Physics and Natural Law
Italian physicist Guglielmo Marconi at work in the wireless room of his yacht Electra, c. 1920.
All About Physics Quiz
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Facts

Also Known As visible spectrum • visible radiation • optical spectrum

Photos and Videos

visible spectrum of light
Sun
Pythagoras
English Franciscan philosopher Roger Bacon
Galileo: telescope
René Descartes
angle of incidence and angle of reflection
reflection of light in a mirror
diffuse reflection of light
law of refraction
The discovery of light's wave-particle duality
Understand how diffraction of light affects stellar images
Why do stars look pointy to humans?
What would traveling at light speed really look like?
Understand the concept of teleportation and how quantum mechanics makes photon teleportation possible
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Related Topics and References

Topics
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Key People

Understanding Newton's theory of universal gravitation
Isaac Newton
English physicist and mathematician
Albert Einstein
Albert Einstein
German-American physicist
James Clerk Maxwell
James Clerk Maxwell
Scottish mathematician and physicist
How did Ptolemy explain retrograde motion?
Ptolemy
Egyptian astronomer, mathematician, and geographer
Roger Bacon
Roger Bacon
English philosopher and scientist
illustration of Robert Hooke's law of elasticity of materials
Robert Hooke
British scientist
Fresnel, detail of an engraving by Ambroise Tardieu after a contemporary portrait, 1825
Augustin-Jean Fresnel
French physicist
Edwin Herbert Land
American inventor and physicist
Thomas Young, engraving
Thomas Young
British physician and physicist
Arago, François
François Arago
French physicist
Johann Lambert, detail of a lithograph by Gottfried Englemann, after a portrait by Pierre-Roch Vigneron
Johann Heinrich Lambert
Swiss-German scientist and philosopher
Sir David Brewster
Scottish physicist
Pyotr Nikolayevich Lebedev
Pyotr Nikolayevich Lebedev
Russian physicist
Sir Frank Dyson, 1927.
Sir Frank Dyson
British astronomer
Gullstrand
Allvar Gullstrand
Swedish ophthalmologist
Malus, engraving by A. Tardieu after a painting
Étienne-Louis Malus
French physicist
Hendrik Anthony Kramers
Dutch physicist

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Quiz
Italian physicist Guglielmo Marconi at work in the wireless room of his yacht Electra, c. 1920.
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Encyclopaedia Britannica thistle graphic to be used with a Mendel/Consumer quiz in place of a photograph.
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Demystified
Hot-air balloon against a sky (clouds, hot air ballooning, recreation)
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