On Saturday, January 5, 2019 at 11:26:27 PM UTC, Jeff Liebermann wrote:
On Fri, 4 Jan 2019 08:37:24 -0800 (PST), wrote:

https://www.nature.com/news/the-bicy...matics-1.20281
Of course this isn't for John or Frank who could fall down if they were sitting on the ground.

It's the optional kickstand that keeps the bicycle upright.

Bicycle Dynamics
http://bicycle.tudelft.nl/schwab/Bicycle/

The Stability of the Bicycle by David L. Jones:
http://www.phys.lsu.edu/faculty/gonzalez/Teaching/Phys7221/vol59no9p51_56.pdf

How Do Bikes Stay Up?
https://www.youtube.com/watch?v=oZAc5t2lkvo (3:56)

Why bicycles do not fall: Arend Schwab at TEDxDelft
https://www.youtube.com/watch?v=2Y4mbT3ozcA (17:55)

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

The one I've always liked best
http://www.phys.lsu.edu/faculty/gonz...9no9p51_56.pdf
just upped and did the experiments on the bike he rode to work. Today's "scientists" would probably start the same test by demanding a budget of at least $5.6m...

Andre Jute
Saddened, and not much wiser either...