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fresnel
1[ fruh-nel, French frey-nel ]
noun
- a unit of frequency, equal to 10 12 cycles per second.
Fresnel
2[ fruh-nel; French frey-nel ]
noun
- Augustin Jean, 1788–1827, French physicist.
Fresnel
1/ frɛnɛl /
noun
- FresnelAugustin Jean17881827MFrenchSCIENCE: physicist Augustin Jean (oɡystɛ̃ ʒɑ̃). 1788–1827, French physicist: worked on the interference of light, contributing to the wave theory of light
fresnel
2/ ˈfreɪnɛl; frɛnɛl /
noun
- a unit of frequency equivalent to 10 12hertz
Fresnel
/ frā-nĕl′ /
- French physicist whose investigations of the interference, diffraction, and polarization of light helped establish the theory that light moves in a wavelike motion. Fresnel also made great contributions to the field of optics, including the development of a compound lens for use in lighthouses.
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Word History and Origins
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Word History and Origins
Origin of fresnel1
C20: named after Augustin Jean Fresnel (1788–1827), French physicist
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Example Sentences
Fresnel therefore adopted the ingenious device proposed by Condorcet, that of constructing a lens of a number of distinct pieces.
From Project Gutenberg
But for lenses the burner has seventeen films of flame, and is said to possess six times the power of the Fresnel lamp.
From Project Gutenberg
At the close of the congress the foreign secretaries placed a crown on the tomb of Fresnel.
From Project Gutenberg
Now, Fresnel's theory always permits of this, to-day as well as before Maxwell.
From Project Gutenberg
No theory seemed more solid than that of Fresnel which attributed light to motions of the ether.
From Project Gutenberg
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