Why do your ears pop when you go up hills?
Why do (some) mountain climbers need / use oxygen?
Why are aircraft pressurised?
Where are the airlocks between these different zones?
There aren't any, of course. Gravity is all that is needed.
- Forums
- Breaking News
- flat
Why do your ears pop when you go up hills?Why do (some) mountain...
- There are more pages in this discussion • 174 more messages in this thread...
You’re viewing a single post only. To view the entire thread just sign in or Join Now (FREE)
Featured News
Featured News
The Watchlist
RDN
RAIDEN RESOURCES LIMITED
Dusko Ljubojevic, MD
Dusko Ljubojevic
MD
SPONSORED BY The Market Online