Timeline for Weird rotational motion of a heavy thick disc
Current License: CC BY-SA 4.0
32 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 5, 2023 at 7:06 | history | edited | Ankit | CC BY-SA 4.0 |
added 261 characters in body
|
| S Jun 21, 2023 at 8:08 | history | bounty ended | CommunityBot | ||
| S Jun 21, 2023 at 8:08 | history | notice removed | CommunityBot | ||
| Jun 20, 2023 at 5:47 | answer | added | Mitchell Porter | timeline score: 0 | |
| Jun 19, 2023 at 9:14 | history | edited | Ankit | CC BY-SA 4.0 |
added 1 character in body
|
| Jun 16, 2023 at 14:24 | answer | added | Eli | timeline score: 0 | |
| Jun 13, 2023 at 7:01 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
deleted 1 character in body
|
| S Jun 13, 2023 at 6:49 | history | bounty started | Ankit | ||
| S Jun 13, 2023 at 6:49 | history | notice added | Ankit | Authoritative reference needed | |
| May 5, 2023 at 1:02 | 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. | |
| S Apr 5, 2023 at 8:03 | history | bounty ended | CommunityBot | ||
| S Apr 5, 2023 at 8:03 | history | notice removed | CommunityBot | ||
| Apr 3, 2023 at 9:44 | comment | added | Ankit | @JohnAlexiou I have added the picture of the disc showing the point of contact. | |
| Apr 3, 2023 at 9:43 | history | edited | Ankit | CC BY-SA 4.0 |
added 120 characters in body
|
| Apr 1, 2023 at 20:02 | comment | added | John Alexiou | Some dimensions would be nice too, to get an idea of the moment of inertia is higher axially than across the peg. The thickness $h$ seems smaller than $h < \sqrt{3}\,R$ which is the value needed to make $I_{\rm side}= I_{\rm axis}$. Is this correct? | |
| Apr 1, 2023 at 17:13 | comment | added | UVphoton | Agree with @JohnAlexiou, the details of the contact matter. Can you send a picture of the peg, side and bottom view. | |
| Mar 31, 2023 at 16:59 | comment | added | Ankit | @JohnAlexiou it is approximately a rounded tip and not a flat one | |
| Mar 31, 2023 at 13:12 | comment | added | John Alexiou | @Ankit - thank you. So there is a peg in the middle. What does the end of the peg look like? Is it flat or rounded? This is going to make a big difference in the dynamics. | |
| Mar 31, 2023 at 7:25 | comment | added | Ankit | @JohnAlexiou I have added a picture of it . Sorry if its not a clear picture. If it is not what you expected I will try to go to the lab and get a more detailed one but that would be possible only after Monday. | |
| Mar 31, 2023 at 7:23 | history | edited | Ankit | CC BY-SA 4.0 |
added 180 characters in body
|
| Mar 31, 2023 at 5:50 | comment | added | John Alexiou | We need a sketch of the disk and what it looks like from the side. | |
| Mar 31, 2023 at 5:49 | comment | added | John Alexiou | Looks like the bottom of the disk is spherical and the contact point moves around. Can you confirm? | |
| Mar 30, 2023 at 19:35 | answer | added | UVphoton | timeline score: 1 | |
| Mar 28, 2023 at 13:29 | comment | added | Ankit | @joseph h yeah both are of same material (so same density as well as dimensions) .. actually they were used just as some weights in the experiment to verify newtons second law using an air track | |
| Mar 28, 2023 at 9:43 | comment | added | auxsvr | This is precession effected by torque, similar to Larmor precession, but caused by gravity and friction. | |
| Mar 28, 2023 at 7:19 | history | edited | Qmechanic♦ |
edited tags
|
|
| S Mar 28, 2023 at 6:49 | history | bounty started | Ankit | ||
| S Mar 28, 2023 at 6:49 | history | notice added | Ankit | Draw attention | |
| Mar 27, 2023 at 20:44 | comment | added | joseph h | I just wanted to know if the top disc and bottom disc are made of the same material and if they both have the same mass density? Anything else (like are they used in an experiment (given they’re in a lab) and what is the experiment etc.,) you can tell me, if there is anything else, would be good. Thanks. | |
| Mar 26, 2023 at 10:42 | history | edited | Ankit | CC BY-SA 4.0 |
added 310 characters in body
|
| Mar 26, 2023 at 6:48 | comment | added | joseph h | I could speculate as to what's happening, but without more information of this disc, it's really hard to tell. | |
| Mar 26, 2023 at 5:38 | history | asked | Ankit | CC BY-SA 4.0 |