Return to efficient technology

Return to efficient technology

Let's examine the technology design of many common items, and return to the most energy efficient. i.e: * Battery powered torches & radios are far more effective than USB-powered ones, particularly if they run out in the middle of a blackout. * Corded vacuum cleaners are more energy efficient, compared to cordless ones (which need to charge for 16 hours, for a 45 minute use). * Laptops are more efficient than wireless tablets, with only 1 power device instead of 3 (tablet, keyboard, stylus).

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