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

Not the same principle really as these things float on water rather than in it. Things on water float at the boundary with the lighter air. If you want to do the same thing on air you should do it at the boundary with something else, even lighter.

If you are completely engulfed in air you're like a diver underwater achieving neutral buoyancy, the same kind of thing as a perfectly balanced balloon. So you're floating in air rather than on air.




> Not the same principle really as these things float on water rather than in it.

Huh? Half the article talks about how they maintain buoyancy while submerged and why that's important.

You don't need a boundary, and it wouldn't help you if you did. You still need to displace the same amount of air.

The only way on/in makes a difference is if you have some way to prevent the fluid from going around you. You'd have to be tightly jammed inside a tube for that.




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

Search: