Talk:3078: Anchor Bolts

2025-04-19T08:32:57Z

Neil UK:

As a kid, I was ALWAYS worried about how plate tectonics would change the continent's layout in a few hundred million years' time, along with how the Sun will die (and maybe consume the Earth if we don't move it) in five billion years. Young me would be SO glad we are finally fixing the first issue. [[User:MinersHavenM43|MinersHavenM43]] ([[User talk:MinersHavenM43|talk]]) 03:28, 19 April 2025 (UTC)
: Was young you a Superman fan, and did you ever wonder what <em>really</em> happened on Krypton? Scientists and engineers, funded and enabled by a Trump-style politician and his promise to "Stop The Earthquakes <em>NOW!</em>", actually overcame (temporarily) the materials issues and solved the stress equations (see below), and installed a (temporarily) successful planetary plate-anchoring system. Jor-El objected to the project, he and any who supported him were de-funded as a result, and he spent his remaining time ensuring that he could get his son the [deleted] outa there before the accumulated strain ruptured the anchors and blew the planet apart. [[Special:Contributions/162.158.41.45|162.158.41.45]] 04:09, 19 April 2025 (UTC)
:Did you also worried about the collision with Andromeda galaxy? -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 05:15, 19 April 2025 (UTC)

Would an anti-subduction screw really work? The tectonic plates are slow, but they are quite heavy, so they have a fair bit of momentum. Indeed, enough to overcome the not inconsiderable friction already present due to the weight of the uplifted portion of the upper plate. Such a screw would therefore need to exert quite a bit of additional pressure to bring the motion to a halt; Exactly how much I shall leave as an exercise for the reader (because I have no clue where to even start trying to work it out), but my guess is that you're gonna need some seriously high tensile strength material for these, even if they are placed at very short intervals along the plate boundary. [[Special:Contributions/172.68.84.172|172.68.84.172]] 03:52, 19 April 2025 (UTC)

:The screw material could easily be some sort of unobtanium, it would still not work. With the forces involved, the result would be the stone would break around the screws, IMHO. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 05:16, 19 April 2025 (UTC)

Looks like somebody got to Randall M. and pointed out that what he drew is a {{w|Bolt_(fastener)|bolt}}, not a screw. The title and caption of the comic have been edited accordingly. [[Special:Contributions/162.158.41.3|162.158.41.3]] 05:38, 19 April 2025 (UTC)

This is silly. The global cooperation and engineering required to make this work (I'm assuming unobtanium as a given) far surpasses that required to decarbonise commerce and fix climate change, which project is not going well, to say the least. [[User:Neil UK|Neil UK]] ([[User talk:Neil UK|talk]]) 08:32, 19 April 2025 (UTC)

Talk:2924: Pendulum Types

2024-04-26T16:53:51Z

Neil UK:

Example of the creepy fingers: https://youtu.be/3zoTKXXNQIU?si=MgZgSRFFyxrNGhw3 [[Special:Contributions/172.70.175.25|172.70.175.25]] 12:58, 24 April 2024 (UTC)
:If that's as creepy as Maxwell's Demon gets, you have to wonder if he's related to Gachnar: https://www.facebook.com/watch/?v=3090746901188850 [[Special:Contributions/172.70.91.12|172.70.91.12]] 14:47, 24 April 2024 (UTC)

Fortunately, Maxwell's Demon can be banished with a silver hammer. [[Special:Contributions/172.69.246.151|172.69.246.151]] 15:08, 24 April 2024 (UTC)
:Is this a Dungeons and Discourse reference? [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 18:23, 24 April 2024 (UTC)
::Ultimately that'd be from {{w|Maxwell's Silver Hammer|The Beatles}}... (Don't know that particular D'n'D thing, if that's a thing. Bet that's also a reference of its own.) [[Special:Contributions/172.71.242.70|172.71.242.70]] 18:46, 24 April 2024 (UTC)

Thank you, whoever completed the transcript. I didn't know the bullet tag and the comics are starting to get more complicated to explain and transcribe. So again, my thanks. <3 [[User:Z1mp0st0rz|Z1mp0st0rz]] ([[User talk:Z1mp0st0rz|talk]]) 16:12, 24 April 2024 (UTC)

David Acheson showed that any finite number of inverted pendulum segments can be made stable through vibration. related video here: https://www.youtube.com/watch?v=BJ7_fFABc9s&t=0s [[Special:Contributions/108.162.238.131|108.162.238.131]] 17:23, 24 April 2024 (UTC)

Considering that Maxwell's demon can reverse entropy, I welcome our new demon overlord. We must all put more starch onto speakers! [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 18:10, 24 April 2024 (UTC)
:Summon Ba'al the Soul-Eater to rule beside Maxwell's Demon!!!!!!!!!!!!!!!! [[User:Z1mp0st0rz|Z1mp0st0rz]] ([[User talk:Z1mp0st0rz|talk]]) 19:22, 24 April 2024 (UTC)

Should we use "pendula" as the plural to "pendulum"? {{unsigned ip|172.70.110.47|21:38, 24 April 2024}}

:The plural of pendulum would be penduli, as it is Latin second declension.[[Special:Contributions/172.70.42.128|172.70.42.128]] 13:31, 26 April 2024 (UTC)

Should we mention that Netflix's airing of 3-body problem means people are probably more interested in chaotic systems right now?--[[Special:Contributions/172.70.39.36|172.70.39.36]] 03:01, 25 April 2024 (UTC)
:Plus there's the US elections coming up...[[Special:Contributions/162.158.95.97|162.158.95.97]] 09:09, 25 April 2024 (UTC)

A double pendulum requires 2 weights, and additional one at the center joint. Surprisingly Randal has that wrong.
[[Special:Contributions/172.69.60.177|172.69.60.177]] 00:25, 26 April 2024 (UTC)
:Traditionally, I've seen that fudged by a massive 'link'. In fact, the two pendulum lengths can be dense bars, without even a terminating weight.
:This obviously changes the dynamics, as the idealised pendulum has all its mass in the swinging weight at its end (the CoG in its centre), a swinging bar is 'twice as long as its swing-factor' (CoG is half way along). So a two-bar double-pendulum (assuming negligable weight bonus/deficit in the mid-joint mechanism) is a half-length-effect secondary pendulum sat at the end of an extended primary.
:As if •-O-•-O-, •=joint (zero mass, zero size), -=extension (zero mass, zero flexibility), O=mass (zero size, zero flexibility)...). This is obviously differently 'tuned' to •—©—O (©=weight+joint, at a point).
:...or else the inter-length joint, though not obviously so, is suitably overwhelmingly massive to do weight+jointing. [[Special:Contributions/172.69.43.185|172.69.43.185]] 02:25, 26 April 2024 (UTC)
:Two weights needed for a double pendulum [https://en.wikipedia.org/wiki/Double_pendulum]. As drawn, assuming a spherical cow in a vacuum, it's a simple pendulum, with two lightweight bars joined by a lightweight hinge, supporting one weight at a constant distance (as the hinge never bends) from the top support.

I wonder if Randall was playing Don’t Starve whose main antagonist is Maxwell, described as demonic, whose world is filled with nightmare themed contraptions, and which feature an entity called night hands that are creepy long fingers that come out at night to snatch your light. {{unsigned ip|162.158.158.234|01:55, 26 April 2024}}

:{{w|Maxwell's_Demon|Maxwell's Demon}} ultimately refers to a though experiment about entropy, and may very well be the inspiration for the Don't Starve character. However, here, it is most likely that he is referring to the thought experiment.[[Special:Contributions/172.70.42.129|172.70.42.129]] 13:40, 26 April 2024 (UTC)

There are white dots on the frame of the top piece of the Nightmare pendulum, but they aren't evenly spaced, which is indicative of ... something, maybe. Perhaps they are balls moving around a channel in the frame, to add to the chaos? [[Special:Contributions/172.70.126.167|172.70.126.167]] 16:38, 26 April 2024 (UTC)

explain xkcd - User contributions [en]

Talk:3078: Anchor Bolts

Talk:2924: Pendulum Types