News tagged with focal point

Image: The moon in 1992

The moon was a focal point for NASA in 2017, whether it was blocking out the sun during one of the most-viewed events in U.S. history, or reinvigorating the agency's human space exploration plans. But the moon has always ...

dateDec 11, 2017 in Space Exploration
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New method reduces need for fish in experiments

Fish are commonly used in experiments to identify environmental hazards and pollutants in water. As gills are in constant contact with the water, they are often the focal point for studies seeking to understand the effects ...

dateFeb 17, 2016 in Ecology
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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 loses intensity. ...

dateMay 14, 2014 in Optics & Photonics
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