50 yrs. of Star Trek!

[Fred Cisin]

On Fri, 9 Sep 2016, Guy Sotomayor Jr wrote:
> Actually it actually *does* exist and is reasonable to manufacture.  Here’s the
> article: http://www.nrl.navy.mil/media/news-releases/2015/transparent-armor-from-nrl-spinel-could-also-ruggedize-your-smart-phone
>
> It’s basically a sintered process where the ceramic is formed (this particular one is called spinel)
> and the process is to put the powder in a press, raise the temperature and evacuate the air.
> The result is a clear crystal that has better properties than glass.  The size of the piece is only
> limited by the size of the press.

>>> Ah yes, but can you make in sheets 60 feet by 10 feet by 1 inch thick and
>>> withstand the pressure of 18,000 cu ft of water?  :)

THAT would be a big heated vacuum press