[John Rogers]

Back when I bought my Mag-Lite (3 total), every now and then I would have to enter into a large void or tank to do an inspection. In thinking about it I decided I did NOT want to be waaaaay into a tank and have the bulb break or batts die! On the USS Enterprise there were "void tanks", 4 besides each other to protect from torpedoes and they went from 2nd deck to the side of the keel! Every 5 years they get opened and the senior reactor folks have to verify they are clear and dry.