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Superstrong and lightweight

The high-entropy alloy. Credit: North Carolina State University
Researchers from North Carolina State University in the USA and Qatar University have developed a super-strong mixture of metals that is stronger for its weight than any [...]

Sunspots

A mid-level solar flare erupted on the sun on 18 December 2014. It can be seen in this image from NASA's Solar Dynamics Observatory (SDO) as the bright spot near the center of the sun. SDO observes light in extreme ultraviolet wavelengths that can highlight the intense heat present in a solar flare. Credit: NASA/SDO
Bursts of magnetic activity on the sun make sunspots, which can be seen with special [...]

Supershiny eggs

Photograph of shiny, iridescent eggs coloured white, yellow and brown.
Relatives of ostriches and emus, Tinamou birds, lay supershiny eggs, but until now no-one knew how the eggs got so beautiful. Researchers at the University of Akron in the [...]

Electric eels hunt by remote control

An electric eel (Electrophorus electricus). Credit: Doug Letterman (flickr). Image may have been cropped.
Researchers have discovered that electric eels use electricity as a sort of remote control on the fishes’ muscles. Kenneth Catania of Vanderbilt University in the USA [...]
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