How the cost of light has fallen by a factor of 500,000…

Posted June 20, 2017 11:49 pm by Editor

How the cost of light has fallen by a factor of 500,000…

As the BBC recently pointed out, our prehistoric ancestors needed to gather and chop “wood 10 hours a day for six days… [in order to] produce 1,000 lumen hours of light… That is the equivalent of one modern light bulb shining for just 54 minutes, although what you would actually get is many more hours of dim, flickering light instead…

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