swansont

But we (scientists) are aware of relativity, so there is no difference in understanding. It’s a given that the measurement was made with our clock. And this has no impact on expansion. You could make the same flawed argument about any measurement affected by relativity, and yet GPS (for example) still works. You are overstating the impact of relativity; it does not render things unknown. It merely makes measurements frame-dependent, but with a known transform between frames. It's like saying that the fact that things can be written in both English and German means language has no meaning, as if one can’t translate between the two.

Any time or length measurement will be the same, but there will be length contraction of the object, and it will experience time dilation. Two observers measuring the decay of muons, for example, will get the same answer for the half-life, but it won’t agree with the lab frame measurements. Without relativity you could not reconcile the discrepancy.

This is only one frame. They must be moving with respect to each other to be different frames.

I was reading that the protective mini-islands are called dolphins https://en.m.wikipedia.org/wiki/Dolphin_(structure)

Marilyn Lands’ victory in Alabama should also paint a picture. I expect the polling numbers to skew toward Biden once the campaign ramps up the ads showing TFG’s support for overturning Roe and the GOP’s plans make it national, and to get rid of IVF and contraception.

Kelvin Klein. For your absolute unit.

You do realize there are countries that are not friendly towards the US, right? So they might not be inclined to sell uranium to the US. Areas that were part of the USSR are currently big producers of uranium. Hard to cut off the supply to someone when it’s under their direct control How/why is that more ethical or acceptable? You failed to address this.

Or spying on the subsequent Soviet efforts, or them sharing information. Once reactors started being built, information was available that wasn’t there during the Manhattan project. Theory became more useful, and less experimentation would have been required. e.g. knowing reaction cross-sections means you can model things rather than doing empirical studies to determine critical mass. Is starving and burning the population somehow more acceptable than using the atomic bombs?

“This page displays the current 270toWin Polling Average for each state” Average does not imply all Several national polls have Biden ahead https://projects.fivethirtyeight.com/polls/president-general/2024/national/ Also: it’s March In March 2016 there were polls that had Clinton over Trump by 10 points or more And: polls are not votes.

We measure it with our clock, since we’re doing the measurement. Most clocks in galaxies run at about the same rate, unless you’re near a black hole or moving at a significant fraction of c. (it’s been estimated that the center of the earth is younger than the surface by ~2 years. A pittance compared to 4.5 billion years) So what? We know this. We’re not comparing notes with any observers in other reference frames. How, specifically, does this tie in with expansion? I don’t see how your conclusion follows.

Guille Yacante has bid us farewell. We’ve locked the door, just in case. We don’t need any more unsubstantiated claims posted in multiple threads on the same topic but placed in inappropriate sections.

Yeah, independent creation happens all the time*. Especially on a smaller scale than calculus. “you stole my idea” is pretty common, too *I’ve got a cartoon sketch about dinosaurs watching a triceratops and claiming to be tricurious, and Colbert made a similar joke on his show a few years later. Nobody stole the idea from me, and it’s a fairly obvious play on words. Not the only time something like this happened to me.

! Moderator Note One thread per topic, please.

Then the proportionality only works at T, and if you are considering particles moving away from each other, more than one time is involved. Why is it you can’t just admit the original statement was incorrect? You’ve already stated that the relative velocities are constant over time. Why the contortions to try and preserve the statement about varying with length?

! Moderator Note Stop soapboxing, and don’t advertise your other threads. Both of these actions are against the rules.

T isn’t a constant.

The separation velocity of any two particles will be constant in time; absent any interaction, the velocity of each particles is constant. There’s nothing proportional with distance.

Two particles traveling in opposite directions, each at v wrt to the explosion, will separate at 2v (for v<<c) and this will not change with time, and therefor not change with separation. For v to increase in such a scenario you’d violate both conservation of energy and Newton’s first law

Basically the point I made as well. Antibiotics use in children is rampant, a third to half of kids 4 and under are prescribed each year in the US, and in some countries the average is 5 per year “Children in low- and middle-income countries (LMICs) are receiving an average of 25 antibiotic prescriptions during their first five years of life” https://news.harvard.edu/gazette/story/2019/12/high-rate-of-antibiotic-use-in-low-income-countries-alarming/ https://meps.ahrq.gov/data_files/publications/st35/stat35.shtml You’d expect to see a bigger effect in countries where more antibiotics are used. Do we see such an effect?

They checked the engraver but no mention of checking the obituary listings for Roger?

mar_mar2 banned as a sockpuppet of mar_mar. We do not need a sequel

I don’t think lasers are used to measure anything outside of our solar system. Certainly nothing where relativity is a factor. We get distances from the light that comes from the entity being measured, and those aren’t lasers.

I don’t understand. Are you claiming that collision avoidance doesn’t exist? Can you provide a link to what you read? https://en.m.wikipedia.org/wiki/Traffic_collision_avoidance_system https://www.faa.gov/about/office_org/headquarters_offices/avs/offices/afx/afs/afs400/afs410/airborne-collision-avoidance-system-acas

! Moderator Note No. This is a discussion forum. Soapboxing and promoting an agenda are against the rules. Stop it.

No, it reflects, but the emissivity is only going to reduce the blackbody power by a factor of 2 or so. This isn’t going to save your conjecture. Pick another solid that’s a better blackbody. But consider that you could paint a block of copper matte black, and this would make it a much better blackbody, yet this only changes the surface and not the bulk property of the copper. Negligible change in the thermal energy content. A model allows you to do calculations, and accounting for the photons is a critical part of your conjecture. If you can’t quantify the effects, you don’t have a model.