News tagged with field

Reusing waste energy with 2-D electron gas

More than 60 percent of the energy produced by fossil fuels is lost as heat. Thermoelectric energy conversion has attracted much attention as a way to convert waste heat from power plants, factories and cars into electricity. ...

dateNov 20, 2017 in General Physics
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Momentum braking in deep space

With a miniaturised space probe capable of accelerating to a quarter of the speed of light, we could reach Alpha Centauri, the nearest star, in 20 to 50 years. However, without a mechanism to slow it down, the space probe ...

dateNov 20, 2017 in Space Exploration
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Solar minimum surprisingly constant

Using more than a half-century of observations, Japanese astronomers have discovered that the microwaves coming from the sun at the minimums of the past five solar cycles have been the same each time, despite large differences ...

dateNov 17, 2017 in Space Exploration
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