Devices operated by human power without electricity or fuel can be convenient and appropriate in certain contexts.
Pages in category "Human power"
The following 9 pages are in this category, out of 9 total.
| Content | 9 pages, 1 subcats, 0 files |
|---|---|
| Main page | Human power |
| Impact Combined page views of all the pages in this category. | 30,069 |
| Top page Top page in this category by number of page views. | Treadmill-a-volt treadmill powered charging (9,256) |
Devices operated by human power without electricity or fuel can be convenient and appropriate in certain contexts.
The following 9 pages are in this category, out of 9 total.