Bufofrog

Read the book.

What do you mean? There is no virus? The covid-19 virus has been misidentified?

This a good thing. Being wrong is not bad but refusing to admit you are wrong is terrible. All the greatest physicist and scientists were wrong about many things, and learned from their errors. There is no doubt you have learned a lot of mechanics in this thread, I know I have. Thanks for the discussion.

I have been following this thread with interest and I would like thank the participants. I never really got the idea of a fictitious force, but thanks to this thread the concept now seems clear to me. It also looks like John2020 has long ago reached the point where he should have admitted his idea was wrong, if he was ever going to.

You changed the scenario to eliminate acceleration so the only thing we had to work with is 2 inertial frames, so my answer was based on that. Maybe if you stop trying to complicate or change the scenario it would be less confusing for you. You said: Now, if you keep in mind that the situation must be so that you cannot know who is the "moving" and who is the "at rest", you get the confusion I struggle with. This is wrong! We know exactly who has accelerated to a new reference frame and who stayed in the same reference (who is the "moving" and who is the "at rest") We know the rocket accelerated and the earth did not. An astronaut on the rocket would almost lose consciousness from the acceleration and the earth would feel no acceleration. The rocket is 'moving' and the earth is not*. This is based on the origin of the coordinate system being starting frame of the rocket on the earth. Do you understand this? If you don't understand, then please don't say you do!

Skeptic and a helluva magician.

[math]\Delta t' = \frac{\Delta t} {\sqrt{1 - \frac {v^2}{c^2}}}[/math] Where [math]\Delta t [/math] is the clock rate of the observer (stationary frame).

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There is no paradox here since on the outbound leg the traveling twin must accelerate to another reference frame. The traveling twins clock will indicate less time has passed than the clock on planet X, as he flies by. If the ship and the planet's weren't ever in the same reference frame and just flew by each other, then both would see the other time dilated. There would be no useful comparing of elapsed time since they are never in the same reference frame.

What?!? Don't sorry mankind will long be extinct before we have to worry about that.

Evidence to support any of this?

OK, you asked for it... Nuh-uh!

Chemotherapeutic drugs are made to kill cancer cells not to treat symptoms. Your hypothesis has been disproven.

This appears to be the output of a random word generator.

Condensed Matter physics is about matter that is held together by chemical bonds.

The big bang produced primarily hydrogen and helium. Heavier elements were formed in stars from fusion, the heaviest element were primarily formed during novae and super novae. Are you asking what are the bonds that make molecules from atoms?

Is this your actual question? How does science explain the distribution of matter in space to form the elements as we know them? Or is condensed matter an important aspect of the question?

Since all liberals are not identical I would say no. Some liberals would be baited by saying that just as some conservatives would baited by saying "I don't support Trump".

The earth is orbiting the sun, the solar system is orbiting the milky way, the milky way is moving towards the andromeda galaxy, those galaxies are moving towards the great attractor, this super clusters is moving with the Hubble flow, etc, etc, etc...

I don't have an answer. Maybe someday we will be able to find cures for the majority of mental illness, I hope so.

Yes, there are many drugs, as well as plants that can cause hallucinations. I believe there is also a toad that you can lick to get hallucinations, if you are so inclined.

And the interaction may well be instantaneous. But there is no information that can be communicated this way.

This quote below is from is from https://en.m.wikipedia.org/wiki/No-communication_theorem, it seems like a good article. from quantum information theory which states that, during measurement of an entangled quantum state, it is not possible for one observer, by making a measurement of a subsystem of the total state, to communicate information to another observer.

OK, I didn't know (or possibly remember) that. Thanks for the info.

Safety note: Pour acid into water like you oughta! Do not pour water into acid.