Understanding power supply energy efficiency
Keywords: Energy Star power supply efficiency energy efficiency
[Summary of tips] External power supplies—the classic black bricks that come with many electronic products these days—are now required to conform to specific energy efficiency requirements. Specifications cover active efficiency—when the power supply is delivering power to the load, and power consumption when there is no load.W......|
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Strange modes of transport and other "stuff"
Someone just pointed me at a YouTube video that claims to show the world's first e-powered multicopter flight...















