Archive: 9/01/2008

Galaxy may hold hundreds of rogue black holes

If the latest simulation of what happens when black holes merge is correct, there could be hundreds of rogue black holes, each weighing several thousand times the mass of the sun, roaming around the Milky Way galaxy.

dateJan 09, 2008 in Astronomy
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How We Localize Surround Sound

You're walking down a busy street, with cars and buses driving past and bits of conversations reaching your ears, when you hear someone call your name. You turn about 60 degrees to your left and look up to the second floor ...

dateJan 09, 2008 in Other feature
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Siberian jays can communicate about behavior of birds of prey

With the aid of various alarm calls the Siberian jay bird species tells other members of its group what their main predators - hawks - are doing. The alarm calls are sufficient for Siberian jays to evince situation-specific ...

dateJan 09, 2008 in
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Life savers in the gut

Researchers from the European Molecular Biology Laboratory (EMBL) have discovered that proteins that regulate the body's iron household play a vital role in making sure enough nutrients and water are absorbed in the intestine. ...

dateJan 09, 2008 in
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Proton-powered pooping

Muscles usually contract when a neurotransmitter molecule is released from nerve cells onto muscle cells. But University of Utah scientists discovered that bare subatomic protons can act like larger, more complex neurotransmitters, ...

dateJan 09, 2008 in
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Solar Cells Can Take the Heat

Solar cells have attracted global attention as one of the cornerstones of alternative energy. In theory, it seems to make abundant sense to tap into the energy of the sun to convert light to electricity with little or no ...

dateJan 09, 2008 in
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