This is an unmanned device so it doesn't have the same safety concern. Also at the cruising altitude there is so little oxygen it's probably as safe as helium at that altitude.
Why not hydrogen instead of helium? It's much cheaper and lighter.
That's kind of cool. I'm in Australia so can't sign up. Concerns I'd have before signing up: 1 How good are the toothbrush heads compared to the better ones you get in the shop? I'd be concerned about downgrading. 2 I…
I'm developing a notification service that lets people sign up to be notified when something they are interested in occurs, and most importantly only when that occurs. The goal is to be agnostic and let people be…
There are some things that some people can solve in a given time frame, which other people could never solve. For example, could you have ever invented calculus or discovered relativity? What about someone less smart…
This is an unmanned device so it doesn't have the same safety concern. Also at the cruising altitude there is so little oxygen it's probably as safe as helium at that altitude.
Why not hydrogen instead of helium? It's much cheaper and lighter.
That's kind of cool. I'm in Australia so can't sign up. Concerns I'd have before signing up: 1 How good are the toothbrush heads compared to the better ones you get in the shop? I'd be concerned about downgrading. 2 I…
I'm developing a notification service that lets people sign up to be notified when something they are interested in occurs, and most importantly only when that occurs. The goal is to be agnostic and let people be…
There are some things that some people can solve in a given time frame, which other people could never solve. For example, could you have ever invented calculus or discovered relativity? What about someone less smart…