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The high energy crab

(PhysOrg.com) -- The Crab Nebula is the remnant of a supernova. Its precursor star exploded in 1054 AD in an event that was recorded by Chinese and (quite probably) Anasazi Indian astronomers. It is called ...

Oct 31, 2011
5 / 5 (2) 8 | with audio podcast

La Nina may dampen fall leaf colors

(PhysOrg.com) -- The weather in Pennsylvania this year won't soon be forgotten -- one of the wettest springs ever, followed by a record-breaking dry heat wave in July, followed by the remnants of a hurricane ...

Sep 29, 2011
4 / 5 (1) 0

Bio-inspired coating resists liquids

After a rain, the cupped leaf of a pitcher plant becomes a virtually frictionless surface. Sweet-smelling and elegant, the carnivore attracts ants, spiders, and even little frogs. One by one, they slide to ...

Sep 21, 2011
5 / 5 (6) 10 | with audio podcast

Tolerant species more upwardly mobile

Only a few invasive plant species succeed in mountain regions. A team including ETH ecologists have now explained, with a rule that applies all over the world, why some exotics are more successful than others ...

Feb 09, 2011
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