MigL

100 years is a very long time frame.

Closed timelike curves don't work that way, not even with stable ( ? ) wormholes. Take a look at these lecture notes from K Thorne ( he gets to wormhole time travel near the end ) II-121.pdf (caltech.edu)

I think anti-matter stars is jumping the gun. There are many other viable explanations.

LOL I just finally got a haircut the other day. Wanted to have cute hair for the nurses giving the vaccine. getting back to SpaceX, this is what happens when someone other than NASA ( or the Russians and ESA ) puts payloads into orbit. Huge Chinese rocket core falling ‘out of control’ back to Earth (msn.com) Do we want 20 tons or more, hurtling out of the sky in an uncontrolled re-entry ? I guess, if you cut corners and don't care about safety, you can put a payload into LEO very cheaply.

Nap's over, Stringy. ( and I'm back at work tomorrow evening; been napping for almost 2 1/2 weeks ) ... that leads stock brokers to jump out of 20th story windows, on particularly dark Mondays ( 1929, 1987, 2008, etc. )

I sncerely doubt that, Zap 🙂 . My apologies, that should be Stringy, not Zap. ( I don't think they are any smarter than you either, Zap )

depends on what you mean by 'free'. A Black Hole can supply energy, which might seem free, but it is at the expense of the BH's mass-energy, or size of EH.

There is nothing broken about the model, so far. Measurement of the Hubble expansion constant has varied through the years ( E Hubble's original estimate was way too low ) simply because it needs to use 'markers' to judge distance. We are talking about huge distances where triangulation is useless, so astronomers look for 'standard candles', astronomical objects that have a specific brightness, and judge distance by comparing relative brightness. E Hubble originally used Cepheid variable stars, but this turned out to give wrong figures, and a more accurate estimate was obtained using type 1A supernovae. The latest estimates have been obtained using the CMB relic radiation, giving a result almost 10% lower, and, in the study described in the article, brightness of red giant stars, which reach uniform brightness, gives an in-between estimate. If you take error into consideration, all three are probably valid. edit This may give a clearer understanding Cosmic distance ladder - Wikipedia

Canada ? Because we're nice guys. And we're waaaay behind in our vaccination targets. ( just got my 1st Pfizer shot today; second scheduled for Aug 23 !!! )

But ... they seemed like a good idea at the time.

No, the EH is not a 'separator' for all rames. And there is no variance to the laws of physics on either side.

I sncerely doubt that, Zap 🙂 .

Not that I agree with, or like, IDNeon's posting style. Nor do I agree with many of his assertions. We most certainly will go to the Moon, and ( not anytime soon ) Mars. But the 50s and 60s were different times, after the 70s, beancounters made the decisions, and still do to this day. But some I do agree with. Last year was the first year Tesla ever made a profit, yet it is one of the most valuable companies in the world. SpaceX has no new technology, but NASA didn't have to pony-up development money for a new launcher ( to low Earth orbit ). I would not be surprised if SpaceX/E Musk is losing money with every launch. But hey, E Musk gets to make outlandish claims and gets publicity. And similarly to a 'cult', people lap it up. Does the CEO of GM, or the head of NASA, go on Saturday Night Live ? Do they make an announcement about having bought their strangely named kid a variety of bitcoin, which jumps in value several hundred percent in the next couple of days, due to their millions of Instagram followers ? Do they use their launching system to put a car into space ???? Of course not ! These are all E Musk publicity stunts. He's developing his cult of personalty. And of course he'll succeed, because we, as a socety, place popularity above all else. It's the same reason we buy a $1200 iPhones, and replace them yearly when the new model comes out, or buy a $2000 Macbook when a $600 Lenovo or Dell will do the same job, making Apple the most valuable company in the world.

If the wormhole allows for violation of spatial translation symmetry, that is, if the laws of physics distinguish between different points in space ( external and internal to the wormhole ), then conservation of momentum is not required.

I'm with Joigus on this one. I've been to Swtzerland; didn't like it much. I think I would prefer Spain.

Soooo Are you saying theis class doesn't have any problems, contrary to reported news? Are you saying they do, but so do the Americans, even though we're not talking about US ships ? Are you saying they had problems, didn't finish the 5th ship, and two are mothballed ( leaving 2 out of what was supposed to be 5 ), because the Soviet Union broke up 30 years ago ? And why are you using their break-up as an excuse ? Why did the Soviet Union break up ? Oh yeah ! They broke up because the 'arms race' required them to spend too much on weapons like the Kirov class, instead of feeding the people. Jesus, it's almost like you weren't alive when the Soviet Union collapsed !

Good way to confuse yourself and others. All information is limited to c , and, other than relic ( unchanging ) space-time curvature, cannot affect you any faster than the light reaching you. 'Actual' position is non-sensical, it is like saying "Where is it, now", and we know that there is no 'now' for everyone and every place.

yet you are the one who brought up the Kirov battlecruiser, not the Kirov class of battlecruisers. As for 'ignorance', this is common knowledge and has been for 20 years. See here for a fairly good read of all the problems this class of ship has had Kirov-class battlecruiser - Wikipedia Even the flagship of the Northern Fleet, the Pyotr Veliky ( Peter the Great ) has had many difficulties "Construction of the fourth ship, Yuriy Andropov, encountered many delays; her construction was started in 1986 but was not commissioned until 1998. She was renamed Pyotr Veliky (after Peter the Great) in 1992.[7] She currently serves as the flagship of the Russia's Northern Fleet. On 23 March 2004, English language press reported the Russian Navy Commander-in-Chief, Fleet Admiral Vladimir Kuroedov said Pyotr Veliky's reactor was in an extremely bad condition and could explode "at any moment", a statement which may have been the result of internal politics within the Russian Navy.[11] The ship was sent to port for a month, and the crew lost one-third of their pay."

A 'vessel' filled completely with water at 1 atm, submerged under water at 10 atm, will experience some compression stressess, and on opening a valve to equalize pressure, there will be very little, if any, movement of water since the 'vessel' is already filled. However, as the pressure is now equalized, the 'vessel' will now relax from the compression stresses, and, depending on materials used, there could be some expansion ( back to normal ) of the 'vessel', and so, a limited inrush of water.

The Kirov ? Really ? If the Russians had gotten that right, it would have been the only one, as they failed miserably with their carriers, and had to sell them for liquid funds to India and China ( where they turned out to be crap and almost unuseable ) Did you forget to mention that the Kirov never actually made it out of the Mediterranean Sea, where, during tis second deployment, it suffered reactor damage ? It has basically been mothballed since the 90s, and although the Russians announced plans to overhaul the whole Kirov class nuclear missile cruiser fleet, the Kirov itself ( sometimes known as Admiral Ushakov ), and its sister ship, Admiral Lazarev, were beyond repair. Get your military analysis from Jane's, not YouTube.

I liked the ibsightful ( and humble ) answere given by exchemist early in the previous page ... "My limited, chemist's understanding of QM is that you can't really speak of an "objective" EM field configuration for a single photon. If you could, it seems to me it would be a classical object rather than a QM one." QM does not allow us to say anything about certain properties of a quantum particle, until we interact with that quantum particle, thereby changing that property. If that were not the case we would be dealing with a classical particle. There is a difference.

An electrolytic capacitor is two thin aluminum sheets with an 'oil' impregnated paper separator between them.. This is rolled-up into a tube, encased in an aluminum or plastic housing, and capped at either end wth rubber, through which, the connecting leads are passed. This is by no means a sealed assembly. Over time, the 'oil' impregnating the paper, tends to dry out, even without use. With use , the process of drying out is posibly accelerated due to increased temperatures. This 'oil' is not simply oil, but an organic chemical compound, selected for various properties; most important are dielectric properties, temperature resistance and stability over time, AND resistance to drying out. As no electrolytic capacitor manufacturer provides 'lifetimes' for their products, it is basically a crap-shoot as to whether thyll still have the same capacitance after many years. Their 'lifetime' will certainly exceed the manufacturer's warranty of the product they are in. If, on the other hand, you are designing equipment, and don;t wish to run into such problems, use a more expensive sealed type of capacitor, but as Studiot explained, those have failure modes also. Please don't ask the same question a 5th time.

Why not separated. Or excluded ? Personally, I've always thought you either have superposition, or you don't. There is no actual 'opposite'.

Of course there's an explanation. The simplest is that, to measure the speed of the second oppositely directed light beam, you need to be in the FoR of the first light beam. And since light has no valid FoR, you need to use SR addition rules ( Lorentz transformations )from a valid third frame. Where you will always measure c to be the maximum speed.

Each GPU core contains 128 Arithmetic Logic Units, ALUs, for a total of 1024 ALUs. Fabbed by TSMC in a 5 nm process, they have 4 hi-performance CPU cores, and 4 lo-performance CPU cores, for a ( claimed ) world's best CPU performance per watt.