[PSUBS-MAILIST] titanium sphere

[Jon Wallace via Personal_Submersibles]

and you could significantly increase the depth rating of the sphere by 
maintaining internal pressure

On 5/8/2015 8:11 AM, hank pronk via Personal_Submersibles wrote:
> This sphere has some real potential.  The sphere could double as a HP air holding tank, as well as a buoyancy tank.
> Hank
> _______________________________________________
> Personal_Submersibles mailing list
> Personal_Submersibles at psubs.org
> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles