As frustrating as having an atmosphere can be for physicists, it’s just as bad for astronomers, who have to deal with clouds, atmospheric absorption of certain wavelengths, and other irritations. One ...
A new study of Rembrandt's self-portraits provides more evidence to theories that the 17th-century artist, among other Old Master painters, used optics to produce his remarkably accurate works. Left: ...
NASA's James Webb Space Telescope is the largest and most powerful telescope ever launched to space. Its mirror is composed of 18 individual segments that have been aligned so accurately, that they ...
(PhysOrg.com) -- Up close, they look simple as can be: a pair of metal bars, each with one side polished to a brilliant shine. One bar faces up, the other to one side. They’re known as K-B mirrors, ...
Co-author Georg Winkler working on a set-up used to characterize the high-performance mirrors under vacuum. (© 2019 Barbara Mair, Universität Wien) Low-loss, highly-reflective “supermirrors” – that is ...
SLAC first published this article on Oct. 11, 2011. Up close, they look simple as can be: a pair of metal bars, each with one side polished to a brilliant shine. One bar faces up, the other to one ...
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