Only 20 watts needed to power the human brain
“The human brain runs on only about 20 watts of power, equal to the dim light behind the pickle jar in your refrigerator,” Discover magazine reports. “By contrast, the computer on your desk consumes a million times as much energy per calculation. If you wanted to build a robot with a processor as smart as the human brain, it would require 10 to 20 megawatts of electricity.”
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Global use of coal-fired electricity set for biggest fall this year
LONDON - The world’s use of coal-fired electricity is on track for its biggest annual fall on record this year after more than four decades of near-uninterrupted growth that has stoked the global climate crisis.
Data shows that coal-fired electricity is expected to fall by 3% in 2019, or more than the combined coal generation in Germany, Spain and the UK last year and could help stall the world’s rising carbon emissions this year.
The steepest global slump on record is likely to emerge in 2019 as India’s reliance on coal power falls for the first time in at least three decades…
