Hacker News new | comments | show | ask | jobs | submit login

> the flywheel can do some pretty serious damage.

There is a solution to this: flywheels that use tightly wound metal tape instead of solid cores. Tape flywheels just unravel inside the casing safely when they break.

Actually, they use wire rather than tape. Powder has also been used and fails very safe but it helps if the material the rim is made of has intrinsic strength.

Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | DMCA | Apply to YC | Contact