Super-Black Material Aborbs 99% of Light
N.A.S.A. has produced a material that absorbs over 99 percent of the ultraviolet, visible, infrared, and far-infrared light—a development that promises to open new frontiers in space technology.
What's the Latest Development?
N.A.S.A. engineers have developed a material that absorbs more than 99 percent of the light that hits it, including ultraviolet, infrared and far-infrared spectra. The material is a coating made of a thin layer of multi-walled carbon nanotubes, tiny hollow tubes made of pure carbon about 10,000 times thinner than a strand of human hair. The material will be useful for a variety of spaceflight applications where observing in multiple wavelength bands is important to scientific discovery.
What's the Big Idea?
The new material could be a boon for astronomers who depend on faint light to make important discoveries. "If used in detectors and other instrument components, this new technology would allow scientists to gather hard-to-obtain measurements of objects so distant in the universe that astronomers no longer can see them in visible light or those in high-contrast areas, including planets in orbit around other stars," said John Hagopian, leader of the N.A.S.A. team responsible for the find.
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Upstreamism advocate Rishi Manchanda calls us to understand health not as a "personal responsibility" but a "common good."
- Upstreamism tasks health care professionals to combat unhealthy social and cultural influences that exist outside — or upstream — of medical facilities.
- Patients from low-income neighborhoods are most at risk of negative health impacts.
- Thankfully, health care professionals are not alone. Upstreamism is increasingly part of our cultural consciousness.
No, depression is not just a type of 'affluenza' – poor people in conflict zones are more likely candidates
- Often seen as typical of rich societies, depression is actually more prevalent in poor, conflict-ridden countries
- More than one in five Afghans is clinically depressed – a sad world record
- But are North Koreans really the world's 'fourth least depressed' people?
America isn't immune to attempts to remove books from libraries and schools, here are ten frequent targets and why you ought to go check them out.
- Even in America, books are frequently challenged and removed from schools and public libraries.
- Every year, the American Library Association puts on Banned Books Week to draw attention to this fact.
- Some of the books they include on their list of most frequently challenged are some of the greatest, most beloved, and entertaining books there are.
Two new studies say yes. Unfortunately, each claims a different time.
- Research at the Weizmann Institute of Sciences declares evening to be the best time for an exercise session.
- Not so fast, says a new study at UC Irvine, which replies that late morning is the optimal workout time.
- Both studies involved mice on treadmills and measured different markers to produce their results.
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