G+: Everything you wanted to know about elevators and …

David Coles
Everything you wanted to know about elevators and building security, but were afraid to ask.

https://www.youtube.com/watch?v=rOzrJjdZDRQ
[Media]
(+1's) 2
Michael Poloni
#winamp
Michael Poloni
It was just a tad too detailed for me ;) I found I had to skip through it, but probably watched almost an hour :-O