Timeline for Maximal length of trajectories in billiard
Current License: CC BY-SA 4.0
22 events
| when toggle format | what | by | license | comment | |
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| Jun 22, 2023 at 21:07 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Feb 22, 2023 at 21:06 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Oct 25, 2022 at 21:03 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Sep 25, 2022 at 19:10 | comment | added | Wlod AA | The formulation of the question is only a sketch to me. Fully developed q. is missing. #### I would also suggest an equivalent mathematization of the question with balls being replaced by moving points, and the rules of "reflections" being defined explicitly without relying on physics. This way, this would open an easy way for natural and precise generalizations. | |
| Sep 25, 2022 at 19:02 | history | edited | Wlod AA | CC BY-SA 4.0 |
more eye hurting typo corrected, and ";" in place of "," makes the sense clear.
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| Sep 25, 2022 at 18:56 | history | edited | Wlod AA | CC BY-SA 4.0 |
an aye hurting typo corrected
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| Sep 25, 2022 at 18:53 | comment | added | Wlod AA | Would you initiate the system?! What balls are present, and what are their moving directions (if any) at the moment ZERO? | |
| Sep 25, 2022 at 18:06 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| May 28, 2022 at 18:01 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jan 28, 2022 at 17:08 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Sep 30, 2021 at 17:00 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 2, 2021 at 15:04 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Feb 2, 2021 at 15:02 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Oct 5, 2020 at 15:01 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Sep 5, 2020 at 13:09 | answer | added | DSblizzard | timeline score: 1 | |
| Sep 2, 2020 at 4:39 | history | edited | DSblizzard | CC BY-SA 4.0 |
added 250 characters in body
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| Sep 1, 2020 at 19:59 | comment | added | DSblizzard | Already tried this without success. And computer can compute only very small boards with irregular sequence of path lengths, so I cannot discover pattern. | |
| Sep 1, 2020 at 19:33 | comment | added | Per Alexandersson | Perhaps consider the case with square board first, and do some computer simulations, and look for hits in the oeis? | |
| Sep 1, 2020 at 15:49 | comment | added | DSblizzard | Yes, mass is the same. Some collisions can reflect balls perpendicularly to their previous movement. You can test this here: phet.colorado.edu/sims/collision-lab/collision-lab_en.html ("advanced" page) | |
| Sep 1, 2020 at 15:44 | history | edited | DSblizzard | CC BY-SA 4.0 |
added 15 characters in body
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| Sep 1, 2020 at 14:47 | comment | added | Random | Do all balls have the same mass? Also, I am not quite sure what "reflects according to the laws of physics" means, because unless I am mistaken a ball that has experienced a collision will not move on lattice points anymore (after 1 time step the ball will not be on a lattice point). | |
| Sep 1, 2020 at 12:57 | history | asked | DSblizzard | CC BY-SA 4.0 |