3 ms·
I imagine you could get several thousand RPM at least with a hand pump and a dentist's drill, if mechanical gearing is not a requirement.
by dTal 7y ago
I imagine you could get several thousand RPM at least with a hand pump and a dentist's drill, if mechanical gearing is not a requirement.
- praptak 7y agoI think ~100k RPM is achievable with a shirt button on a bunch of twisted strings, pulled on both ends. This was actually used to construct a cheap mechanism that needed the high g to separate some chemicals to analyse samples. I can't remember the details though.
- astatine 7y ago125k RPM. For malaria detection using a whirling paper centrifuge, powered entirely by hand. https://news.stanford.edu/2017/01/10/whirligig-toy-bioengineers-develop-20-cent-hand-powered-blood-centrifuge/ https://news.stanford.edu/2017/01/10/whirligig-toy-bioengine...
- praptak 7y agoThank you! I was not able to dig this up.