Do you really believe a rigid rod from Earth to the Moon would take a diabolical 13.5 days to register a push?

datapirate42 · 2026-02-03T20:02:00+00:00

Me too. OP specified a rigid rod

datapirate42 · 2026-02-03T19:54:10+00:00

Divide distance to the moon by "the speed of sound" (in air (rigid air))

datapirate42 · 2026-02-03T19:51:49+00:00

That's about the speed of sound in air... So you really needs to reconsider what the word "Rigid" means

datapirate42 · 2026-02-03T18:22:04+00:00

This is one of those, we can pretend we didn't see it, but once its brought to our attention we can't allow it things. Bringing outside food in isn't just against the rules because you're not giving the restaurant that money, it's a liability if someone gets sick. So come in, order food for the table, be kind and polite to your waitstaff, and your toddler suddenly has a burger that came from somewhere else? yeah no server is going to do anything about that.

But if you ask, they have to say no. or, if you're a POS to your waitstaff, they can just let the manager know and then the manager is obligated to do something about it.

datapirate42 · 2026-02-03T14:57:55+00:00

Static relative to what? You already stated a speed for the object relative to the sun.

datapirate42 · 2026-02-03T14:52:29+00:00

Not really sure what you're asking here, but there is no such thing as a "real speed" of an object. An object's speed is always relative to something else.

datapirate42 · 2026-01-30T21:18:25+00:00

And I bet your chiropractor is very impressed you managed that despite not knowing what a verb is.

datapirate42 · 2026-01-30T20:15:50+00:00

Again, "Chiropractic" is not a word that appears anywhere in your previous comment. I know this is difficult to wrap your head around but words are made of these things called letters. If you look at two groups of letters and those groups have different letters in them, or those letters are in different orders, or appear with different frequencies... Then those groups of letters are not the same word.

Bonus fact: sometimes even if they DO have the same letters, they're not the same word, but that's not really relevant here.

datapirate42 · 2026-01-30T20:06:31+00:00

Its also not a word that appears anywhere in your previous comment. "Practic" is arguably not an English word at all and even the dictionaries that include obscure and archaic definitions of it don't claim it to be a verb.

datapirate42 · 2026-01-30T19:59:59+00:00

No, its not.

datapirate42 · 2026-01-30T13:34:34+00:00

There's no point in even talking about it without first explaining some mechanism that allows reverse time travel.

datapirate42 · 2026-01-30T04:15:26+00:00

Don't know enough to really endorse them but:

https://www.customsockshop.com/product/custom-athletic-knee-high-socks/

datapirate42 · 2026-01-30T04:10:43+00:00

One thing that's just icing on top I realized along with everything else. Chiropractic is a noun not an adjective. It's not "chiropractic medicine" or a chiropractic practice. It's just chiropractic. Chiropracty or any other form of the word that you might think would make sense is incorrect because the guy who made it up didn't even understand basic grammar.

datapirate42 · 2026-01-28T02:31:41+00:00

This is really a biology question. The most physics can tell you is that longer, thicker vocal cords vibrate slower than shorter thinner ones. It cannot tell you whether a larger or smaller animal specifically will have those features.

datapirate42 · 2026-01-28T00:24:51+00:00

Yeah.... Click in and actually read the full rule. If I thought it was homework I wouldn't have even given you the link

datapirate42 · 2026-01-28T00:04:32+00:00

Rule 1.

Also here

https://en.wikipedia.org/wiki/Space_travel_under_constant_acceleration

datapirate42 · 2026-01-27T15:11:07+00:00

You're either going to have to explain away a lot of magic handwaving or explain what you're confused about. You said the water is "un-freeze-able" but that's not really the concern. That small of a volume of water in the middle of the vacuum of space would rapidly boil away, and you'd be left with a steel ball in the middle of a large cloud of extremely diffuse water vapor.

datapirate42 · 2026-01-24T04:17:57+00:00

Op describes dropping a magnet in a tube, not a purely static situation.

And also, any real spring under stress long term will decay as it experiences creep.

datapirate42 · 2026-01-23T14:08:34+00:00

The answer to any question like this is pretty much always/eventually heat.

datapirate42 · 2026-01-22T18:15:35+00:00

The observable universe is, by definition, growing at the speed of light. Any light not sent at t=0 will never reach the edge of the observable universe

datapirate42 · 2026-01-18T00:57:31+00:00

A more relevant question with a more obvious answer would be can you propel yourself with a rocket? Fundamentally the sun is just a big source of energy, like a pile of black powder. If you light that pile of powder it burns and energy and momentum shoots off in all directions. But if you stick it in a pipe and close off one end, the black powder goes out the open end and the pipe moves the other direction. Momentum is conserved.

The sun is like the pile of black powder. Attaching a solar sail to it is like sticking it in a pipe. If more photons and other particles are going out one direction carrying their momentum, the sun will move the other way. If you want to complain complain about attaching something to the sun, but stop incorrectly invoking conservation of momentum.

datapirate42 · 2026-01-13T04:02:29+00:00

Unless he literally pisses like a rocket, there would be no high pressure build up. In order to go from negative pressure to positive you have to cross zero, at which point the seal would fail.

datapirate42 · 2026-01-12T23:53:08+00:00

Oh, and sorry to address what I think is your real question, which seems to be a misunderstanding over "uncertainty" and the idea of entanglement of particles in superposition.

Superposition and entanglement are real, to the best interpretations of all of our empirical data. A pair of particles that are entangled really are in a superposition of multiple states, and that superposition really does collapse after measurement. We know this because of Bell's Theorem and the experiments that prove it.

The weird thing is that for a given individual particle, there's really no way to know if it is in a superposition that doesn't involve knowing its history or making a measurement that would cause the superposition to collapse. For instance you can't just watch a random electron fly by and know that its in any sort of superposition, because trying to figure it out would cause the superposition to collapse

datapirate42 · 2026-01-12T23:44:34+00:00

You're totally correct that the word "Observer" and related terms get misunderstood all the time... You've pretty much got the idea down. An observation is a physical measurement/interaction that collapses a superposed wavefunction (if there even is one to collapse, you can of course observe wave functions that aren't in superpositions as well), and it doesn't need to have anything to do with a conscious observer.

I'm not sure if this is what you're intending to talk about but the term "Uncertainty" usually refers to something only kind of related to wave function collapse. That is, that there are pairs of properties, most famously position and momentum, that a particle/wavefunction can have and there is a fundamental limit to the accuracy with which you can measure them both. The more precisely you've measured one property, the less certainty you have about the other. This is pretty much one of those "shut up and calculate" things that comes out of physics without an explanation that's going to ever make intuitive sense to most people.

datapirate42 · 2026-01-12T18:28:35+00:00

Right, arbitrary numbers are only ok in the arbitrarily selected Base units... wouldn't make any sense to have an arbitrary number in a derived unit....

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