Researchers use freshwater and seawater to generate electricity
Stanford researchers have developed a battery that takes advantage of the difference in salinity between freshwater and seawater to produce electricity.
Anywhere freshwater enters the sea, such as river mouths or estuaries, could be potential sites for a power plant using such a battery, said Yi Cui, associate professor of materials science and engineering, who led the research team.
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Anywhere freshwater enters the sea, such as river mouths or estuaries, could be potential sites for a power plant using such a battery, said Yi Cui, associate professor of materials science and engineering, who led the research team.
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Researchers develop battery-less chemical detector
Unlike many conventional chemical detectors that require an external power source, Lawrence Livermore researchers have developed a nanosensor that relies on semiconductor nanowires, rather than traditional batteries.
The device overcomes the power requirement of traditional sensors and is simple, highly sensitive, and can detect various molecules quickly. Its development could be the first step in making an easily deployable chemical sensor for the battlefield.
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The device overcomes the power requirement of traditional sensors and is simple, highly sensitive, and can detect various molecules quickly. Its development could be the first step in making an easily deployable chemical sensor for the battlefield.
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Company planning biggest rocket since man on moon
WASHINGTON (AP) — A high-tech entrepreneur unveiled plans Tuesday to launch the world's most powerful rocket since man went to the moon.
Space Exploration Technology has already sent the first private rocket and capsule into Earth's orbit as a commercial venture. It is now planning a rocket that could lift twice as much cargo into orbit as the soon-to-be-retired space shuttle.
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Space Exploration Technology has already sent the first private rocket and capsule into Earth's orbit as a commercial venture. It is now planning a rocket that could lift twice as much cargo into orbit as the soon-to-be-retired space shuttle.
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