Otherwise, the sheer weight of the high floors would make the building collapse into itself. One of the fundamental characteristics of gothic architecture was its height. New building techniques (such as the flying buttress, detailed below) enabled architects to spread the weight of taller walls and loftier towers. This all meant that gothic buildings could, quite literally, scale new heights.
Adult snapping turtles can stay under water for 40-50 minutes. I have a baby snapper and he stays under for about 10-15 minutes. I know he can hold his breath for longer but iâ¦t is really just a choice thing. If a snapping turtle knows that a potential predator is near by then he may stay down for 20 minutes or more.
Best Answer: A nuclear submarine can stay underwater indefinitely, it produces it's own air and fresh water. The only constraint on the time it can stay submerged is food for the crew.Once the food runs out it has to be re-supplied.A normal patrol can be between 3 and 6 weeks but could be extended to 12 weeks if necessary and if they had enough food for the crew, probably much longer.S Nuclear Submarines can stay submerged for only as long as they have food. That is what is the limiting factor. I have gotten underway walking on food. Large #10 can stacked 2 high throughout the forward compartment and that is just for starters. Needless to say, it can be a really long time!