Comments on: Bicycle Physics http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/ a science and medicine related weblog from scienceforums.net Fri, 05 Dec 2008 10:19:24 +0000 http://wordpress.org/?v=2.5.1 By: tennessee bicycle repair http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-671 tennessee bicycle repair Fri, 04 Jul 2008 10:06:46 +0000 http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-671 <strong>tennessee bicycle repair...</strong> [...] title near Toledo to the south of Madrid on Sunday. Share/Bookmark: Categories: News Tags: Alejandro Valverde, bicycle, bicycle race, Caisse dEpargne, road race champion, spanish, Tour de France ... tennessee bicycle repair…

[...] title near Toledo to the south of Madrid on Sunday. Share/Bookmark: Categories: News Tags: Alejandro Valverde, bicycle, bicycle race, Caisse dEpargne, road race champion, spanish, Tour de France …

]]> By: Andrew Dressel http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-570 Andrew Dressel Sat, 28 Jun 2008 14:16:45 +0000 http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-570 "This is because the center of mass must be under the bicycle in order to remain upright." This may also be a typo. Perhaps you mean "the center of mass must be over the ground contacts." “This is because the center of mass must be under the bicycle in order to remain upright.”

This may also be a typo. Perhaps you mean “the center of mass must be over the ground contacts.”

]]> By: thoughts from gut bacteria » Blog Archive » Questions on more bike physics http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-375 thoughts from gut bacteria » Blog Archive » Questions on more bike physics Tue, 10 Jun 2008 22:49:03 +0000 http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-375 [...] continues the series I started the other day, answering questions about the physics of bicycles.  Well, now I have some questions of my own.  Questions that need answers.  Answers that are [...] [...] continues the series I started the other day, answering questions about the physics of bicycles.  Well, now I have some questions of my own.  Questions that need answers.  Answers that are [...]

]]> By: ecoli http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-343 ecoli Fri, 06 Jun 2008 19:01:58 +0000 http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-343 you're right about the typo. I said you'd have to lean the bike in the opposite direction of the turn. What I should have said, is steer the bike in the opposite direction, so you can maintain your center of balance while leaning into the actual turn. Thanks for the fix. I've edited the post to correct the mistake. you’re right about the typo. I said you’d have to lean the bike in the opposite direction of the turn. What I should have said, is steer the bike in the opposite direction, so you can maintain your center of balance while leaning into the actual turn.
Thanks for the fix. I’ve edited the post to correct the mistake.

]]> By: Felstatsu http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-342 Felstatsu Fri, 06 Jun 2008 18:52:14 +0000 http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-342 Fairly good post. I think there's at least one error though near the very end. Wouldn't leaning the bike out away from the turn cause you to lose balance instead of maintain it? Motorcyclists certainly don't lean away from the turn their taking, and I can't think of any time I've leaned to the left when turning right. I'd think the centripetal force would kick in and knock the rider over. Outside of that, which looks like it's probably just a typo (especially since it makes no sense with the later comment about balancing stuff in a hand), I think this does a fairly good job explaining the physics behind turning a bike. As for my own 2 cents on this, I think whichever turn you slow down more to make will be easier, and going uphill definitely has the advantage there. The less energy you have going forward while you're turning, the less force you have trying to push you off balance. Fairly good post. I think there’s at least one error though near the very end. Wouldn’t leaning the bike out away from the turn cause you to lose balance instead of maintain it? Motorcyclists certainly don’t lean away from the turn their taking, and I can’t think of any time I’ve leaned to the left when turning right.

I’d think the centripetal force would kick in and knock the rider over.

Outside of that, which looks like it’s probably just a typo (especially since it makes no sense with the later comment about balancing stuff in a hand), I think this does a fairly good job explaining the physics behind turning a bike.

As for my own 2 cents on this, I think whichever turn you slow down more to make will be easier, and going uphill definitely has the advantage there. The less energy you have going forward while you’re turning, the less force you have trying to push you off balance.

]]> By: EquMath: Math Lessons » Blog Archive » Bicycle Physics http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-338 EquMath: Math Lessons » Blog Archive » Bicycle Physics Fri, 06 Jun 2008 16:31:03 +0000 http://blogs.scienceforums.net/ecoli/2008/06/06/bicycle-physics/#comment-338 [...] Eliezer Yudkowsky: [...] [...] Eliezer Yudkowsky: [...]

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