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Recently, an alternative to prisms and gratings has been developed: chirped mirrors. These dielectric mirrors are coated so that different wavelengths have different penetration lengths, and therefore different group delays. The coating layers can be tailored to achieve a net negative dispersion.
During this period he investigated the refraction of light, demonstrating that the multicoloured image produced by a prism, which he named a spectrum, could be recomposed into white light by a lens and a second prism. [63] Modern scholarship has revealed that Newton's analysis and resynthesis of white light owes a debt to corpuscular alchemy. [64]
Archimedes of Syracuse [a] (/ ˌ ɑːr k ɪ ˈ m iː d iː z / AR-kim-EE-deez; [2] c. 287 – c. 212 BC) was an Ancient Greek mathematician, physicist, engineer, astronomer, and inventor from the ancient city of Syracuse in Sicily. [3]
Most forecast models suggest a hurricane landfall in Florida or the northern Gulf Coast on Thursday, Weather.com meteorologist Jonathan Erdman said. The system, elevated to "potential tropical ...
NEW YORK (Reuters) -Sanofi's chief executive, Paul Hudson, said in an interview on Monday that the company is poised for strong growth from a variety of new drugs and is not facing imminent ...
Nikon also manufactures eyeglasses, sunglasses, and glasses frames, under the brands Nikon, Niji, Nobili-Ti, Presio, and Velociti VTI. [117] Other Nikon's products include ophthalmic equipment, loupes , monoculars , binocular telescopes , metal 3D printers , material processing equipment, regenerative medicine contract manufacturing , cell ...
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