News tagged with ultraviolet

Intoxicatingly light-sensitive

ETH chemists have synthesised several variants of THC, the active ingredient in cannabis. Its structure can be altered with light, and the researchers have used this to create a new tool that can be used to more effectively ...

dateJan 11, 2018 in Biochemistry
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the geometry of nuclear black hole accretion disks

Supermassive black holes with millions or even billions of solar-masses of material are found at the nuclei of most galaxies, including our Milky Way. A torus of dust and gas orbits around the black hole (at least according ...

dateJan 03, 2018 in Astronomy
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UVB radiation influences behavior of sticklebacks

Fish cannot see ultraviolet B rays, but still change their behavior when they grow up under increased UVB intensity. According to studies by biologists at the University of Bonn on three-spined sticklebacks (Gasterosteus ...

dateDec 13, 2017 in Ecology
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Image: SDO spies broad coronal hole

A broad hole in the corona was the sun's dominant feature November 7-9, 2017, as shown in this image from NASA's Solar Dynamics Observatory. The hole is easily recognizable as the dark expanse across the top of the sun and ...

dateNov 21, 2017 in Space Exploration
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