BB packing problem on a cylinder (& the water paraboloid) @pocket83

Uploaded August 2017 | Updated September 2026, 3 weeks ago

This video is about using and constructing a spinning tube that can demonstrate centrifugal force, sphere packing, and crystal structure. The BBs will form a lattice around the cylinder when a simple spin technique is applied.

More footage of water paraboloids:
youtu.be/M5uvAv0qga0

Music:
"Our Lives Change" by Tryad
tryad.bandcamp.com/album/public-domain
Licensed by Creative Commons:
creativecommons.org/licenses/by-sa/3.0

BB packing problem on a cylinder (& the water paraboloid)

Box joints WITHOUT buying a dado set (make one)

$Mouse Maze Please see my other video for how to make the mouse movers. http://www.youtube.com/watch?v=sd44dRoufj4 Maze template: http://s5.postimg.org/dfriajyl3/mouse_movers_template_with_grid.png Music by J.Lang: http://ccmixter.org/files/djlang59/37792 ^Did you see that? I gave credit where it is due. Despite this, YouTubes automated copyright flag-bot was triggered by the audio in this video, even though the song that it flagged me for using isnt even used in this video! YouTube uses copyright law to an absurd and abusive extent. It is an excuse; minor infractions can be used as leverage- as a way for YouTube to avoid paying content creators. The worst part about it is that no one is minding the store, because (as is the case with any colossal corporation), there are no human beings that I can explain my problem to. Human beings are too empathetic and reasonable, and as such, they are financial leaks in the otherwise impartial and impenetrable corporate super barge that is Google. A person (an employee) would likely recognize the ridiculous nature of the copyright strike, and rescind it. Make no mistake: for this reason, employees are being phased out, and being replaced with automated (and therefore indifferent) systems, whereby an algorithm is applied to each case, and where impassioned cries of reason will fall only on to deaf ears. This is not a conspiracy; this is a legitimate, logical, and mathematically sound business model. And it is coming to a store near you. Im getting tired of fighting. Its easier to just remove the music, and not use music in the future. Sorry.$

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pocket83 |

BB packing problem on a cylinder (& the water paraboloid)