News tagged with dust

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Violent birth announcement from an infant star

(Phys.org) —This Hubble image shows IRAS 14568-6304, a young star that is cloaked in a haze of golden gas and dust. It appears to be embedded within an intriguing swoosh of dark sky, which curves through the image and obscures ...

dateJun 06, 2014 in Astronomy
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Measuring fine dust concentration via smartphone

Big cities in the smog: Photos from Beijing and, more recently, Paris clearly illustrate the extent of fine dust pollution. But what about our direct environment? What is the pollution concentration near our favorite jogging ...

dateMay 26, 2014 in Engineering
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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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