A railway carriage with a glass or plastic floor, permitting the occupants to see the track under the carriage, the wheels or bogies, and all the cabling and pipework.

That's it.
-- 8th of 7, Dec 09 2015

//all the cabling and pipework.//

Sp.:"all the cabling, pipework and migrants."
-- MaxwellBuchanan, Dec 09 2015


Aha, then they can stick zoetropic adverts between the sleepers?
-- mitxela, Dec 09 2015


This is the same view down many toilets in Europe's trains, which is more or less the same reason you wouldn't want a glass-bottom carriage.
-- 4and20, Dec 09 2015


Everything could have glass bottoms. Ships, lifts, cars, shoes, trousers, bridges...
-- pocmloc, Dec 09 2015


glass bottomed trousers [+]
-- Voice, Dec 10 2015


Angle of view might be more interesting with a periscope or a moveable webcam and large flat display. Is structural intergrity a problem.
-- wjt, Dec 10 2015



random, halfbakery