News tagged with focal point

Deformable mirror corrects errors

Very high power is needed to cut or weld using a laser beam. But this creates its own problem: the beam's energy deforms the mirrors that are focusing it to a point. When this happens, the beam expands and ...

May 14, 2014
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Explore a room with a Mars view

(Phys.org) -- On the evening of Sunday, Aug. 5, the focal point of Martian activity here on Earth will be located in the Mission Support Area in Building 230 at NASA's Jet Propulsion Laboratory in Pasadena, ...

Aug 05, 2012
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