Parabolic mirrors concentrate sunlight to power lasers

Legend tells of Greek engineer and inventor Archimedes using parabolic mirrors to create "heat rays" to burn the ships attacking Syracuse. Though the underpinnings of that claim are speculative at best, a modern-day team ...

NASA satellite observes damage path of april tornadoes

Recent images of the April 27 storm damage path have been captured by NASA's Terra satellite, part of NASA's Earth Observing Satellite system, or EOS. An instrument aboard Terra, called Advanced Spaceborne Thermal Emission ...

New e-paper display offers low energy/high refresh rate

(PhysOrg.com) -- A new type of display for portable electronic gadgets combines the energy efficiency of low power devices such as e-readers with the high performance of high power use devices such as laptops and smartphones. ...

Perfectly non-reflecting

(PhysOrg.com) -- A new nanocoating ensures a perfectly non-reflecting view on displays and through eyeglasses. The necessary surface structure is applied to the polymeric parts during manufacture, obviating the need for a ...

Scientists find black gold amidst overlooked data

(PhysOrg.com) -- About half of the oil in the ocean bubbles up naturally from the seafloor, with Earth giving it up freely like it was of no value. Likewise, NASA satellites collect thousands of images and 1.5 terrabytes ...

Can alien civilizations detect humanity?

One of the fascinating things about being a human in this age is that we can do more than wonder about other life and other civilizations. We can actually look for them, although there are obvious limitations to our search. ...

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