91–100 of 208 posts
Accelerating and decelerating in line with gravity is a lot more forgiving on the occupants than lateral accelerations. Seems like this would put a big limit on horizontal movement.
The big benefit is that you get more than one elevator per shaft. For skyscrapers the amount of floor space wasted by elevators grows exponentially by the number of floors. Say you have a 5 story building that needs a one shaft elevator. 5 floors tiles 100 sqft per floor is 500 sqft of wasted shaft space. Then say you have a 10 story building that needs two shafts. Now you are wasting 10 floors times two shafts or 2,…
Paternosters. You say terrifying, I say fun. There's one in Leicester University (not the only one in the UK, I'm sure). Really not that dangerous, with a cable near the top of each aperture that triggers a stop if it's touched.
Off-topic, who is the narrator? I think I've heard him on another German "corporate presentation" video, and I can hear a slight German accent... And back on-topic, googling to find the details instead of just a flashy video, here's Tom Scott on MULTI: https://www.youtube.com/watch?v=kdTsbFS4xmI
The big benefit is that you get more than one elevator per shaft. For skyscrapers the amount of floor space wasted by elevators grows exponentially by the number of floors. Say you have a 5 story building that needs a one shaft elevator. 5 floors tiles 100 sqft per floor is 500 sqft of wasted shaft space. Then say you have a 10 story building that needs two shafts. Now you are wasting 10 floors times two shafts or 2,…
EDIT: Unless there's some dependence between m and n, like if taller buildings always need more shafts or something.
The big benefit is that you get more than one elevator per shaft. For skyscrapers the amount of floor space wasted by elevators grows exponentially by the number of floors. Say you have a 5 story building that needs a one shaft elevator. 5 floors tiles 100 sqft per floor is 500 sqft of wasted shaft space. Then say you have a 10 story building that needs two shafts. Now you are wasting 10 floors times two shafts or 2,…
Sorry to sound stupid, but how is that exponential? Isn't it O(mn) where m = number of floors and n = number of shafts? EDIT: Unless there's some dependence between m and n, like if taller buildings always need more shafts or something.
The dependence is on keeping wait times reasonable. Taller buildings mean each shaft's elevator spends more time travelling, i.e. less time being available.
http://www.newyorker.com/magazine/2008/04/21/up-and-then-dow...
looks expensive to build, purchase and maintain. not sure there's anything "revolutionary" here.
The big benefit is that you get more than one elevator per shaft. For skyscrapers the amount of floor space wasted by elevators grows exponentially by the number of floors. Say you have a 5 story building that needs a one shaft elevator. 5 floors tiles 100 sqft per floor is 500 sqft of wasted shaft space. Then say you have a 10 story building that needs two shafts. Now you are wasting 10 floors times two shafts or 2,…
Am I the only one who noticed that the first elevator shown in the video, while the narrator discussed the birth of the elevator in 1854, is gear-based and hence rope-free?!