US Navy develops diving helmet with HUD

[jlw]

@Papasan

When I got certified in the old century, the instructor “hearing impaired signed” under water. To this day that is the best way I have ever seen to communicate while diving with others humans.

I’m OK
Look at this
How Much Air You Got?
This Much Air!
Lets go Up!
Share Air! I’m fucked!

Pretty much all you need.