Skip to main content
5 events
when toggle format what by license comment
Apr 13, 2017 at 12:21 history edited CommunityBot
replaced http://math.stackexchange.com/ with https://math.stackexchange.com/
Dec 7, 2016 at 22:36 comment added David K A tower that collapses when you remove the top block is easy to imagine; the fact that a particular tower does so might be less obvious. The difficulty here is trying to imagine what the tower actually looks like; I wasn't able to get a clear enough picture of it to say whether it is counterintuitive that the top block is required.
Dec 7, 2016 at 12:47 comment added user191074 Yeah, or surely build up Scott's tower, and then build it on top of itself again going in the other direction.
Dec 7, 2016 at 12:12 comment added Abstraction Why not just put three blocks one on the other, with middle one shifted to the side? Removing the top block will cause middle one to fall.
Dec 5, 2016 at 16:00 history answered Barry Cipra CC BY-SA 3.0