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Extreme changes in climate kept large, early dinosaurs from ruling the tropics
2015-06-15 12:00:00| LifeSciencesWorld
[NEWS] Wild swings in climate and lack of consistently abundant vegetation prevented large plant-eating dinosaurs from dominating tropical regions near the equator for up to 30 million years after they first evolved, according to new research. The multi-year, multi-institutional research study published today in Proceedings of the National Academy of Sciences, pieces together a detailed picture of the climate and ecology during the rise of the dinosaurs 230 million years ago….
Silicon Avalanche Photodiodes suit extreme low light conditions.
2015-06-08 14:31:06| Industrial Newsroom - All News for Today
Suited for applications with 400–1,100 nm wavelength, Silicon Avalanche photodiodes (Si APDs) are optical detectors that come in hermetic TO Cans and feature internal gain mechanism, rise times as low as 300 psec, and high sensitivity in NIR region. Optical sensitivity peak is optimized for 800 or 905 nm, and standard versions are available with 200, 500, and 800 µm active diameter. Additional characteristics include 80–200 V breakdown voltage and frequency response up to 1 GHz.
Tags: conditions
low
light
extreme
Subtle but very real link between global warming & extreme weather events
2015-06-02 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Washington Post: Last week, some people got really mad at Bill Nye the Science Guy. How come? Because he had the gall to say this on Twitter: Billion$$ in damage in Texas & Oklahoma. Still no weather-caster may utter the phrase Climate Change. Nyes comments, and the reaction to them, raise a perennial issue: How do we accurately parse the relationship between climate change and extreme weather events, as they occur in real time? Its a particularly pressing question of late, following not only catastrophic...
Rapid Arctic ice loss linked extreme weather changes in Europe and US
2015-06-01 14:58:00| Climate Ark Climate Change & Global Warming Newsfeed
Guardian: The string of massive snowstorms and bone-chilling cold on the US east coast, as well as flooding in Britain and record temperatures in Europe, are linked to rapid ice loss in the Arctic, new research appears to confirm. While the rapidly-thawing Arctic cannot be held responsible for specific weather events like the snowmageddon in 2009, Hurricane Sandy, or European heatwaves, researchers at Rutgers university said it appears to be a prime reason why the polar jet stream a ribbon of winds...
This has been a month of extreme weather around the world
2015-05-30 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Associated Press: Even for a world getting used to wild weather, May seems stuck on strange. Torrential downpours in Texas that have whiplashed the region from drought to flooding. A heat wave that has killed more than 1,800 people in India. Record 91-degree readings in Alaska, of all places. A pair of top-of-the-scale typhoons in the Northwest Pacific. And a drought taking hold in the East. Mother Nature keeps throwing us crazy stuff, Rutgers University climate scientist Jennifer Francis says. Its just been...
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