Event: Secret Science Club presents Janna Levin
by Lauren on Oct.07, 2009, under Science Event
When 2 black holes orbit each other in space, and no one is there to hear it, do they still make a noise? Join astrophysicist Janna Levin as she discusses the noises black holes create when they orbit each other.
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When: Tuesday October 13, 8:00pm
Where: The Bell House, 49 7th St (btw 2nd and 3rd Aves) Gowanus, Brooklyn
Cost: FREE! But it’s 21 and over only– doors open at 7:30pm
Astrophysicist Janna Levin is in hot pursuit of these orbiting drumbeats—and the information they carry about the distant universe. Predicted by Einstein’s theory of relativity, gravitational waves have never been directly detected. But the interstellar search is on, and two far-reaching space-science experiments—LIGO and LISA—now seek to capture and “hear” the beatbox of the universe for the first time.
:astrophysicist, black holes, cosmos, secret science club, space
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Nasa's Image of the Day
Composite of a Series of Images Taken From Space Aboard the Space Station
This is a composite of a series of images photographed from a mounted camera on the Earth-orbiting International Space Station, from approximately 240 miles above Earth. Expedition 31 Flight Engineer Don Pettit said of the about photographic techniques used to achieve the images: "My star trail images are made by taking a time exposure of about 10 to 15 minutes. However, with modern digital cameras, 30 seconds is about the longest exposure possible, due to electronic detector noise effectively snowing out the image. To achieve the longer exposures I do what many amateur astronomers do. I take multiple 30-second exposures, then ‘stack’ them using imaging software, thus producing the longer exposure." A total of 18 images photographed by the astronaut-monitored stationary camera were combined to create this composite. Image Credit: NASA
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