If you’re in a building 25+ floors high, then the fire escape might not be an option in some circumstances. It makes sense to have a back-up solution.
from Gizmodo UK http://ift.tt/voEe7c
via IFTTT
“From there the automated line feeding and braking functions will steadily lower the user at a rate of 2m/s until they reach the ground or the rope runs out.” At which point they plummet to a squishy death.