SR1Post - Light is Wave-like 1. Refraction (slowing down)...

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Light is Wave-like 1. Refraction (slowing down) 2. Interference Effects 3. Diffraction C.C. Jones, Union College, Schenectady, N.Y.
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Thomas Young 1801 - measures wavelength of light (double-slit experiment) C.C. Jones, Union College, Schenectady, N.Y.
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Augustin Fresnel 1816 - formulates rigorous wave theory to explain interference & diffraction effects Poisson’s Spot 1819 C.C. Jones, Union College, Schenectady, N.Y.
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a 122 1 . sin ⎟ = θλ George Airy 1835 - calculates size of central fringe in circular diffraction pattern . .. hyperphysics.phy-astr.gsu.edu/. ../cirap2.gif
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θ λ R a 122 . George Airy which leads to Rayleigh’s criterion (min. angular separation for resolution). C.C. Jones, Union College, Schenectady, N.Y.
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J. L. Foucault 1850 - measures speed of light waves in air using rotating mirror method c = 298,000 km/s
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Hypothetical Aether 1. Permeated all of space from the surface of the Earth out to the most distant star. 2. Carried light waves from one place to another. 3. Thin, tenuous, & invisible. 4. Had no affect on the motion of planets, stars, etc. 5. Solid (to sustain transverse waves). 6. Highly incompressible (to transmit waves at large speed).
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v oo = 1 με Light is an EM Wave 1865 - James Clerk Maxwell publishes theory of E&M & calculates speed of EM waves from his theory. = 298,000 km/s = c In 1865 Maxwell published his theory of Electricity & Magnetism, which predicted the existence of EM waves produced by oscillating charges. The theory predicted a speed of “c” in a vacuum - the speed of light. So it became obvious that light waves are electromagnetic waves. Are they carried by the Aether just as air carries sound waves?
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SR1Post - Light is Wave-like 1. Refraction (slowing down)...

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