Title text:
“How does the spring not run out almost immediately?” “We pull it back REALLY far.”
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3244/
Title text:
“How does the spring not run out almost immediately?” “We pull it back REALLY far.”
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3244/
I can’t remember which car but an early hybrid vehicle did charge up a flywheel instead of an electric battery…
i think it was a bus, and it was used in hills to get extra energy while going down and using ot while going up.