Comment by hollerith
6 hours ago
It's not more sustainable though. It takes more energy to grow the food to get the calories to metabolize to turn the crank than it would to run an electric motor or a engine to do the same work.
6 hours ago
It's not more sustainable though. It takes more energy to grow the food to get the calories to metabolize to turn the crank than it would to run an electric motor or a engine to do the same work.
Totally true that what is and is not sustainable is more complicated than it first appears.
I think what I'm honing in on is the idea that hand cranks produce very limited, often interrupted power and are relative low-tech, both of which are directionally the right way for us to be putting our efforts.