Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

This idea just hit me, and it's so powerful I'm still reeling. What if someone built a battery-powered weight lifter that would go off every 1/2 hour? You wouldn't have to keep getting up to do it yourself!

Not sure if I should patent this, or just donate it to the greater good of mankind.



are you proposing propetual motion? if you have the energy to lift the mass, you have the energy to power the light directly and bypass the losses of setting up the dravity weight again.




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: