Timeline for Does leaning (banking) help cause turning on a bicycle?
Current License: CC BY-SA 2.5
10 events
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| Nov 6, 2021 at 8:41 | review | Low quality answers | |||
| Nov 6, 2021 at 10:52 | |||||
| Jul 26, 2018 at 12:52 | review | Suggested edits | |||
| Jul 26, 2018 at 13:23 | |||||
| Dec 7, 2011 at 7:11 | comment | added | Tobias Kienzler | @freiheit nice "bike" :-) But I didn't spot induction of turning by leaning, since those guys always had their hands on the handlebar, so I wouldn't exactly call it evidence | |
| Dec 6, 2011 at 19:49 | comment | added | freiheit | Here's some experimental evidence of bikes with no angular momentum on the front wheel: youtube.com/watch?v=HP4VwaD7rd4 | |
| Nov 16, 2010 at 10:29 | comment | added | Frédéric Grosshans | It is known since the 1970s that the angular momentum of bicycle wheels is negligible. See e.g. en.wikipedia.org/wiki/Bicycle_and_motorcycle_dynamics | |
| Nov 2, 2010 at 22:31 | comment | added | Tobias Kienzler | @LarsH: The angular momentum vector of your bike is orthogonal to the wheels. When you tilt, the vector would also tilt up (or down, depending on the direction of your tilting). This causes Nutation, that is, a torque induced by gravity that changes the angular momentum vector forward (or backward, I'm too tired for a vector product atm), thus turning the wheel left or right if the steering wheel is left loose. | |
| Nov 2, 2010 at 22:23 | comment | added | LarsH | Since reading your answer I looked up conservation of angular momentum. Wikipedia says "Angular momentum is conserved in a system where there is no net external torque"; but when your bicycle is leaning I would think there is external torque due to gravity... so does this mean angular momentum has no "obligation" to be conserved? | |
| Nov 2, 2010 at 22:19 | comment | added | Tobias Kienzler | @LarsH: That's at least my first intuition, see e.g. also Nutation. I'll try to elaborate this further tomorrow | |
| Nov 2, 2010 at 22:15 | comment | added | LarsH | Interesting ... why should it conserve the total angular momentum rather than letting you fall over and crash? Also, it is possible to fall over and crash when leaning while not holding the handlebars... Does your explanation still hold in that case? | |
| Nov 2, 2010 at 21:55 | history | answered | Tobias Kienzler | CC BY-SA 2.5 |