added 2007 Tue Feb 20 14:54:07 by Ousama
A small, powerful rope-climbing device can pull a person up 30 stories in 30 seconds.
A small, powerful rope-climbing device can pull a person up 30 stories in 30 seconds.
added 2007 Wed Feb 14 23:32:49 by jeremytoday
Nathan Ball, a mechanical-engineering graduate student at Massachusetts Institute of Technology, led a team that has invented a motorized pulley that will let paramedics and firefighters zip up the side of buildings sort of like Spider-Man.
Nathan Ball, a mechanical-engineering graduate student at Massachusetts Institute of Technology, led a team that has invented a motorized pulley that will let paramedics and firefighters zip up the side of buildings sort of like Spider-Man.
