30/06/2015

New concrete composite can heal itself

In the human body, small wounds are easily treated by the body itself, requiring no further care. For bigger wounds to be healed, the body may need outside assistance. Concrete is like a living body, in that it can self-heal ...

Image: Spirals in Saturn's D Ring

Although the D ring of Saturn is so thin that it's barely noticeable compared to the rest of the ring system, it still displays structures seen in other Saturnian rings. Here the spiral structures in the D ring are on display.

Yosemite forest fire example of possible things to come

Forest composition, ground cover and topography are the best predictors of forest fire severity in the Western U.S., according to Penn State physical geographers who also see that the long history of fire exclusion on federal ...

Actuators that mimic ice plants

Engineers developing moveable robot components may soon take advantage of a trick plants use. Researchers at the Max Planck Institute of Colloids and Interfaces in Potsdam and Harvard University in Cambridge (USA) have devised ...

After mercury ruling, higher scrutiny of Obama climate rules

Sweeping pollution limits at the center of President Barack Obama's climate change plan are facing increased scrutiny in the wake of a Supreme Court ruling that showed that the justices aren't afraid to thwart perceived overreach ...

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