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A convex mirror diagram showing the focus, focal length, centre of curvature, principal axis, etc. A convex mirror or diverging mirror is a curved mirror in which the reflective surface bulges towards the light source. [1] Convex mirrors reflect light outwards, therefore they are not used to focus light.
In X-ray telescopes, the X-rays reflect off a highly precise metal surface at almost grazing angles, and only a small fraction of the rays are reflected. [36] In flying relativistic mirrors conceived for X-ray lasers, the reflecting surface is a spherical shockwave (wake wave) created in a low-density plasma by a very intense laser-pulse, and ...
The Boston Camera, also known as Pie Face and officially classified as the K-42 Camera Model, [1] was a prototype airborne photo reconnaissance camera. It was manufactured for the United States Air Force by Boston University in 1951 [ 2 ] and was tested on the Convair B-36 and the C-97 Stratofreighter .
Instead, as I looked in the mirror at the salon, I smiled at myself for the first time in over a year. It was glorious. My new friend began to invite me to queer events. I enjoyed styling my short ...
By itself, the diameter of the primary optics can be a poor measure of a telescope's historical or scientific significance; for example, William Parsons, 3rd Earl of Rosse's 72-inch (1.8 m) reflecting telescope did not perform as well (i.e. gather as much light) as the smaller silvered glass mirror telescopes that succeeded it because of the ...
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