by Rbts Stn
I think this is the best forum for this, as the geniuses at Homeland Security have finally come up with a way to quickly and safely plug a subway tunnel, to keep water leaks, gases, or fire from getting in (or out, depending on your preference.
Link: http://www.popularmechanics.com/technol ... =pm_latest
Although I'm pretty sure The 3 Stooges and I Love Lucy came up with this first
Link: http://www.popularmechanics.com/technol ... =pm_latest
Although I'm pretty sure The 3 Stooges and I Love Lucy came up with this first