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A Winston cone is a non-imaging light collector in the shape of an off-axis parabola of revolution [1] [2] with a reflective inner surface. It concentrates the light passing through a relatively large entrance aperture through a smaller exit aperture. [ 3 ]
Alfred William Gallagher MBE (17 May 1911 – 8 August 1990) was a New Zealand inventor, manufacturing engineer and businessman. He is notable for popularising the electric fence . Early life
Just Before Dawn is a 1981 American slasher film directed by Jeff Lieberman and starring Chris Lemmon, Gregg Henry, Deborah Benson, Ralph Seymour, Jamie Rose, and George Kennedy. The film follows a group of hikers who travel into a mountainous region of Oregon to visit property inherited by one of them, only to be hunted by a ruthless backwoods ...
Review scores; Source Rating; AllMusic [1] The Darkest Hour Is Just Before Dawn is the first album by The ... "First Bright Light" – 10:23 "Bound to Collide" – 5: ...
The play, based on Delia Ephron's memoir of the same name, opens Wednesday, Oct. 23
Light cone coordinates can also be generalized to curved spacetime in general relativity. Sometimes calculations simplify using light cone coordinates. See Newman–Penrose formalism. Light cone coordinates are sometimes used to describe relativistic collisions, especially if the relative velocity is very close to the speed of light.
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