Iowa town seeks status as video gamers' mecca

(AP) -- For a brief shining moment in the 1980s, Ottumwa was the unlikely hot spot of the fledgling video game industry as gamers around the globe flocked to this sleepy Iowa city and its video game arcade for a series of ...

One sponge-like material, three different applications

A new sponge-like material that is black, brittle and freeze-dried (just like the ice cream astronauts eat) can pull off some pretty impressive feats. Designed by Northwestern University chemists, it can remove mercury from ...

Enabling graphene-based technology via chemical functionalization

Graphene is an atomically thin sheet of carbon that has attracted significant attention due to its potential use in high-performance electronics, sensors and alternative energy devices such as solar cells. While the physics ...

Stuck bolt, dead battery bedevil Hubble repairs

(AP) -- Spacewalkers' specially designed tools couldn't dislodge a balky bolt interfering with repairs Sunday at the Hubble Space Telescope, so they took an approach more familiar to people puttering around down on Earth: ...

UN: Growth of slums boosting natural disaster risk

(AP) -- The rampant growth of urban slums around the world and weather extremes linked to climate change have sharply increased the risks from "megadisasters" such as devastating floods and cyclones, a U.N. report said Sunday.

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