> Two rowing machines could provide roughly 400 watts of power. If they are operated around the clock in shifts, they could supply the ship with an extra 9.6 kW

> Two rowing machines could provide roughly 400 watts of power. If they are operated around the clock in shifts, they could supply the ship with an extra 9.6 kWh of energy per day (ignoring energy losses) – one fifth of the total maximum electricity use. Any suggestions for an infinite climbing rope for extra electricity at home? > Even a crew of 12 taking a daily hot shower would require 25.2 kWh of energy per day, half of what the hydrogenerators produce at a sailing speed of 7.5 knots. Well, don’t take hot showers? Get warm with exercise and breathing, then use a little cold water and a soapy rag to get cleaner, then rinse in cold water. I wish I’d been doing this my whole life, for the mental, physical, and ecological benefits. What might a person suffer from that necessitates heated water for washing?