
Got a great tip? Share it with us. You know, stuff like "Prevent sneezing by pressing you index finger firmly between your nose and your upper lip."
( , Wed 29 Nov 2006, 16:33)
« Go Back

When about to cross the road at a busy pedestrian crossing (e.g. anywhere in Central London), don't attempt to fight your way to the front of the crowd of people. Stay towards the back and let those in a real hurry fight their way to the front of the pack.
Not only is this the gentlemanly thing to do; it also means that in the event of a vehicle tearing across the crossing when the lights have changed, the body bearing the impact of the crash will not be yours...
( , Wed 24 Mar 2010, 12:38, 5 replies, latest was 15 years ago)

how big a crowd would have to be to stop a car at various speeds.
( , Wed 24 Mar 2010, 13:49, Reply)

take the average mass of the bodies and friction with the ground vs the momentum of the average car. We can chart number of bodies required for different speeds.
Should we assume for the calculations that the driver stops accelerating?
( , Wed 24 Mar 2010, 22:20, Reply)
« Go Back