The amount of energy saved by switching off the phone charger is exactly the same as the energy used by driving an avera — David J. C. MacKay

The amount of energy saved by switching off the phone charger is exactly the same as the energy used by driving an avera — David J. C. MacKay

The amount of energy saved by switching off the phone charger is exactly the same as the energy used by driving an avera — David J. C. MacKay

The amount of energy saved by switching off the phone charger is exactly the same as the energy used by driving an avera — David J. C. MacKay

The amount of energy saved by switching off the phone charger is exactly the same as the energy used by driving an avera — David J. C. MacKay

The amount of energy saved by switching off the phone charger is exactly the same as the energy used by driving an average car for one second.

— David J. C. MacKay

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Energy Driving Phone