Silver price heads for weekly gain in speculative surge
The precious metal rose to an all-time-high above $64 an ounce on Friday morning.
Solar energy breaks through the quantum efficiency barrier
PhysOrg.com reports that researchers have broken through the quantum efficiency barrier, a measure of how efficient solar panels are at absorbing light and turning the photons into electricity: Researchers from the National Renewable Energy Laboratory (NREL) have reported the first...
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