News tagged with radiation energy

Building a bright future for lasers

Invisible to the human eye, terahertz electromagnetic waves can "see through" everything from fog and clouds to wood and masonry—an attribute that holds great promise for astrophysics research, detecting concealed explosives ...

dateNov 15, 2016 in Optics & Photonics
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How cold are black holes?

The very idea that a black hole could have a temperature strains the imagination. I mean, how can something that absorbs all the matter and energy that falls into it have a temperature? When you feel the warmth of a toasty ...

dateSep 05, 2016 in Space Exploration
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A blazing gamma-ray source

Blazars are galaxies whose central, supermassive black holes are accreting material from surrounding regions. Although black hole accretion happens in many galaxies and situations, in the case of a blazar the infalling material ...

dateJun 06, 2016 in Astronomy
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Plants show stress in thermal spectrum

Plants experience stress as a result of growing under non-optimal conditions. For example, too little water or low temperatures lead to clear responses such as wilting or defoliation. But exposure to milder forms of stress ...

dateDec 15, 2015 in Earth Sciences
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