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Slow light is a dramatic reduction in the group velocity of light, not the phase velocity. Slow light effects are not due to abnormally large refractive indices, as will be explained below. The simplest picture of light given by classical physics is of a wave or disturbance in the electromagnetic field.
Michael Faraday holding a piece of glass of the type he used to demonstrate the effect of magnetism on polarization of light, c. 1857.. By 1845, it was known through the work of Augustin-Jean Fresnel, Étienne-Louis Malus, and others that different materials are able to modify the direction of polarization of light when appropriately oriented, [4] making polarized light a very powerful tool to ...
Hau and her associates at Harvard University "have demonstrated exquisite control over light and matter in several experiments, but her experiment with 2 condensates is one of the most compelling". [11] In 2006 they successfully transferred a qubit from light to a matter wave and back into light, again using Bose–Einstein condensates.
Atmospheric refraction of the light from a star is zero in the zenith, less than 1′ (one arc-minute) at 45° apparent altitude, and still only 5.3′ at 10° altitude; it quickly increases as altitude decreases, reaching 9.9′ at 5° altitude, 18.4′ at 2° altitude, and 35.4′ at the horizon; [4] all values are for 10 °C and 1013.25 hPa ...
Light pollution experts abide by the mantra: “keep it low, keep it shielded, keep it long.” In other words, ensure that lighting is low to the ground, that it is targeted to avoid light ...
Because the mirror keeps rotating while the light travels to the distant mirror and back, the light is reflected from the rotating mirror at a different angle on its way out than it is on its way back. From this difference in angle, the known speed of rotation and the distance to the distant mirror the speed of light may be calculated. [106]
Serena’s desire to take things slow inadvertently made Kordell question the strength of their connection, and he felt conflicted when another contestant, Daia, was ready to go all in right away ...
The iconic coming-of-age film set in Bloomington during the Little 500 bike race turns 45 this week. Here are a townie's hot takes on "Breaking Away." Why, 45 years later, 'Breaking Away' is still ...