MigL

With any luck the officer will get convicted of premeditated murder, One thing I would add... In most other parts of the world, the police are trained to de-escalate the situation, and deal with it with minimal, or no force. In the US, because of that damned second amendment right to bear arms, the police are trained to take all offenders, no matter the crime, down with extreme prejudice. I remember a NY state trooper drawing a gun on me at 4:00am, 35 years ago, coming home on the highway from a bar. America's love affair with firearms seems to be related to a lot of problems in American society.

That simplistic analysis is for the case where the WHOLE floor is the inlet, and the WHOLE ceiling is the exhaust. In any real world situation where the inlet and exhaust vents are fractions of the area, Mr. Bernoulli dictates speed and pressure changes. I don't know how this idea deserves three pages of deliberation, but Swansont is right; your 'hand-waving' arguments aren't convincing anyone of its merits.

Nice explain, Markus. Reminds me of QM, where one can take advantage of symmetry in the Hydrogen atom, in spherical polar co-ordinates to reduce the 2nd order partial differential equation and get exact answers. But as soon as asymmetries are included, like you get with multi-electron systems of Helium and higher, the equations become intractable, and must be handled by numerical methods. with the number of EFEs the situation is probably a few orders of magnitude harder in GR. On the 'bright side' ... , the OP's stubbornness to abandon his simplistic idea, has allowed for a lot of these teaching/learning opportunities. And the rest of us who choose to seriously consider the information presented by you, Mordred, and others, are 'richer' for it.

If you consider the TWO masses as parts of the system, then the energy of the system is increased, and so the contribution to the energy density of the system is increased. The system, as a whole, will have a larger gravitational potential, but I don't think the 'attraction' between the individual members of the system will change. ( I could be wrong, but if Markus says the calculations are not trivial, don't expect me to do them ) Gravity is an additional source of gravity, simply because gravity is self-coupling, due to the non-linearity of the EFEs. IOW gravity gravitates. BUT there is no such thing asanti-gravity.

For the specific system where the kinetic energy is evenly 'spread out' over the system, then there is a contribution to the energy density. It contributes to ED because it is describing a system that has a higher temperature than the reference system. Not motion of the system. Seemed simple enough to follow...

Not just one twit, Stringy. Apparently the US has a whole lot of twits; some masquerading as medical experts. The American Association of Physicians and Surgeons is also lobbying for increased prescribing of Hydroxychloroquine. https://www.theguardian.com/us-news/2020/may/24/hydroxychloroquine-trump-us-doctors-coronavirus The AAPS has previously claimed that HIV may not cause AIDS, that abortion causes breast cancer, that vaccines are linked to autism, and even that B Obama used hypnosis to trick voters. My first thoughts on reading this article was that maybe the AAPS is a comedy group...

Welcome, and interfere as much as you like. Open minds are always welcome. You might learn a few things from our more knowledgeable members. And a few of us might learn some things from your insights.

Well, there is time dilation due to relative motion...

WE ???? We are most certainly not; maybe you are, and have been for some time. ( may be time to look for a new hobby ) The rest of us are satisfied with the GR model, which, other than a few areas of applicability, works extremely well.

Curvature, or geodesics, can be related to geometry; That is what GR does. Go ahead and relate refractive index to geometry. And use math, not analogies or hand-waving. As you have already told 3 people you don't want to discuss your idea anymore, I suggest you are in the wrong Forum. And there is no point keeping this thread open if we aren't welcome to discuss its merits.

And B will detect 10 pulses, but with different spacing, because the frequency of the pulses also changes. ( maybe you should consider what I'm writing before dismissing it ) This is a reference to gravitational potential becoming more and more negative as the universe expands. IOW, work has to be done to move mass to apart, since gravity does positive work as the mass approaches. I remember coming across this same idea in Principles of Modern Cosmology by P J E Peebles. And I've always considered it an 'accounting' convention.

No, you are confused. The 'insurmountable problem' is your invalid assumption of simultaneity between frames.

If it can't be true, you must be able to explain X ray diffraction with those same photon 'tennis balls'. Or maybe you can explain the photoelectric effect with EM waves ? Whether light displays its wave nature, or its particle nature, depends on the observation you are attempting to make. Some models are better suited for describing specific aspects of reality than others.

I suggest doing your analysis of the two observers in a gravity well, with EM waves instead of photons. The peaks and troughs of a wave are in effect signal pulses, and frequency of a particular EM emission is, in effect a clock. Now consider a specific emission deep in a gravity well, as observed by an observer much higher in the gravity well. Using your same logic ( as you previously applied to the photons ) the higher up observer will see the peaks and troughs of that specific emission arriving slower, and more separated. IOW, lower frequency and longer wavelength ( otherwise known as red-shift ), and if you multiply the two together, you still get c . Alternatively, an observer lower in the gravity well will see waves from that same specific emission ( but now higher up in the well ) arriving with peaks and troughs at a faster rate, or more closely spaced. IOW, higher frequency and shorter wavelength ( also known as blue-shift ). In both cases, the frequency/wavelength shifts are not observed at the same depth in the gravity well, but only at differing depths. That is a 'comparison' and what is meant by relative, certainly not 'absolute'. And in neither case is c measured to be different from the speed of light by any observer. Its amazing how much confusion you can avoid, by using the right model for the circumstances.

Welcome. We are all good, but some are better than others. ( or just more opinionated ) Join in the fun.

Having had Kawasaki does not put you at higher risk. But this affliction, very similar to Kawasaki, has been linked ( in UK, Italy and US ) to Covid-19

It may act as a systemic inflammatory agent. Other than the respiratory tract, GI tract and kidneys, it also seems to inflame blood vessels, leading to a thickening ( gelling ? ) of blood. There is also the systemic inflammation that has been affecting children, and linked to Covid-19.

Uummm… You think you've been drinking for only an hour, but actually, it's been 4 hours. Then you stumble.

Well, there goes the invariance of c .

That would lead to a lot of Marilyn Monroe, skirt blown up around the waist, type incidents. Is this thread becoming a little silly ?

All observers also agree on the invariance of c ; something has to change. Frequency, or wavelength, of the signal. Hence, red or blue shift. That was simple, wasn't it ?

How do you know it ticks more slowly until you bring them together to compare ? Frequency and wavelength are a 'signal', and are used as 'timing', or a clock, if you will.

Gravitational time dilation is relative. It is only apparent when comparing the emission ( frequency/wavelength ) from two differing depths of the Gravitational potential well. IOW, one 'signal' has to climb/descend to the height/depth of the other for the comparison to be made. You cannot circumvent that ( no mixed frames ).

An opinion piece on the response, successes and failures, of two similar countries, the US and Canada, to the Covid-19 pandemic https://www.msn.com/en-ca/news/canada/canada-succeeded-on-coronavirus-where-america-failed-why/ar-BB13A2OT?ocid=msedgntp Makes for interesting reading, and places the large majority of blame, for the US's inadequate response, on its polarized political system, and lack of a universal heath care system. How many Americans need to die before you Democrats and Republicans learn to work together, and everyone has access to national health care ? ( Oh wait... Didn't I ask this same question regarding gun control ? ) Seems even Republicans can't work together... G W Bush has become the latest target of President D Trump after the former president released a video calling for people and their government to work together. The President 'slammed' G W Bush, questioning his absence during the impeachment trials. ( Maybe G W was embarrassed to be associated with what passes for presidential behavior today )

That's a problem with all democratic political systems. Political leaders only govern four years down the road, and can't see past the next election. But I'll take that over a dictatorship, or one-party system, any day.