15/05/2012

The teacher is central to successful use of computers in schools

The idea of one computer per student is becoming increasingly common in the Swedish school system. The University of Gothenburg, Sweden, is now conducting several studies on the educational consequences of the so-called 1:1 ...

Sulphur and iron compounds common in old shipwrecks

Sulphur and iron compounds have now been found in shipwrecks both in the Baltic and off the west coast of Sweden. The group behind the results, presented in the Journal of Archaeological Science, includes scientists from ...

Undersea warriors, undersea medicine: The future force

U.S. Navy divers take on dangerous tasks every day—and starting this week, they will be part of a multinational effort near Estonia to help clear the Baltic Sea of underwater mines left over from as long ago as the First ...

AMD's Trinity is out to rattle Intel's Ivy Bridge

(Phys.org) -- AMD has announced Trinity, its second-generation A-Series accelerated processing units (APUs), which are out to rival Intel’s Ivy Bridge processors. AMD’s Trinity is an update to its Llano, which attempted ...

Big-mouthed babies drove the evolution of giant island snakes

Some populations of tiger snakes stranded for thousands of years on tiny islands surrounding Australia have evolved to be giants, growing to nearly twice the size of their mainland cousins. Now, new research in The American ...

Oxygen-separation membranes could aid in CO2 reduction

It may seem counterintuitive, but one way to reduce carbon dioxide emissions to the atmosphere may be to produce pure carbon dioxide in powerplants that burn fossil fuels. In this way, greenhouse gases — once isolated ...

A supernova cocoon breakthrough

(Phys.org) -- Observations with NASA's Chandra X-ray Observatory have provided the first X-ray evidence of a supernova shock wave breaking through a cocoon of gas surrounding the star that exploded. This discovery may help ...

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