MigL

Nine solar masses instantly converted to gravitational energy; I don't think you wanna pen that door. Detectable quadrupole stretching and compressing at 12.8 billion LY distance; you don't want to be anywhere close to that. Don't want to go digging through Gravitation; anyone know a quick and dirty way of calculating the magnitude of the quadrupole wave as a function of radiation power ( the gravitational quadrupole equation based on the change of the quadrupole moment, Einstein 1918, is a little unwieldly ).

By battleship I meant any fighting sea vessel that doesn't have its own air support. Granted, not a technical definition. Defensive systems are much more capable these days, including stealth. Armor is a 'last' line of defense. A modern frigate, like the French/Italian FREMM design ( being pushed for US Navy requirements ) is designed with radar defeating stealth features, long range radar and warning systems, surface to air missile defences and automated artillery systems. In US service ( and most major navies ) they are also part of a carrier group, which provides air cover with F/A-18 super Hornets, F-35B and C, Rafales and Su-33 naval Flankers. Nothing is getting close enough for armor to be needed, but there is some advanced materials.

But the local entropy must propagate while keeping a causal connection. How would far parts of the compartment 'know' what is happening locally. Maybe I'm not understanding the problem ...

The Yamato had considerable firepower. And if the Japanese had air cover ( from a carrier ) it most certainly would not have been a 'turkey shoot'. Yet 85 years later, battleships are the backbone of most navies of the world. And more and more countries are investing in carriers for 'force projection'.

Maybe Douglas Quaid will find the ancient Martian reactor, which will sublimate the underground 'glacier', and give Mars a breathable atmosphere again. ( Total Recall, 1990 ) That's the problem when you start your sentence with 'maybe'.

OK. Columbus' voyage had to be financed by Queen Isabella 1 of Castile, and probably cost millions ( if not billions ) in today's money. My 'voyage' was paid for with Mastercard.

The Grumman F6F Hellcat was the US navy's primary fighter in the second half of WW2, as the 9 superior ) Vought F4U Cutlass was a bi*ch to carrier land. Its primary ( designed for ) opponent was the Mitsubishi A6M Zero. Hellcats were active in the Pacific theater, from Tarawa, to the Marianas. Being primarily a ( robust ) fighter, and not a dive bomber, I would imagine the strategy was for the other fighters to draw the Yamato's fire by 'swarming' it, and when the opportunity arose the Hellcats carrying bombs would make their run in

Yet Columbus' voyage is in all the history books. My trip back from Europe, last year, didn't make a single one . Sometimes the value is in the achievement, not simply 'what it is'.

I suggest you watch The Martian. It should be available on Netflix. How do you fix the problem of too many people, without giving them another place to live ? Exterminate all those you don't like ? ( and more importantly, would I be on that list ? )

As with all conspiracy theories, people who 'THINK' they understand, ARE the problem. No evidence, just 'coincidences and a gut feeling' ??? I thought we didn't do conspiracy theories on SFN. And with crap like this, the more exposure they get, the worse it becomes. ( I'd actually consider shutting down the thread, but that would be censorship )

It is still information and constrained to move at less than/equal to c . And, as a statistical process, a causal 'connection' has to be maintained between different sections.

Can I buy your original Jaguar XKE ? You can keep the copy.

Yes, you're wrong. It isn't language that links them together, but theory and math. Is an after-thought a thing that you might want to consider ?

Yes sir, it does. nd is the reason its gravitational waves can cause interference in LIGO and Virgo, from 12.8 billion LY away.

Your eye bends light by refraction, the 'slowing' of light, as it passes from a less dense material to a more dense material, due to increased absorption/emission events. Planets, stars and galaxies bend light gravitationally, and the Sun will bend light passing tangentially ( close ) to its surface, by only about 1.75 arcseconds.

Seems a massive ( record breaking 142 Ms ) Black Hole was created from the collision of a 66 Ms and 85 Ms BHs. https://www.theweathernetwork.com/ca/news/article/discovery-of-record-breaking-black-hole-collision-surprises-astronomers ( amazing what you find when you go check tomorrow's weather ) Published today from researchers at UBC. ( that's close to Mordred's stomping grounds ) edit I guess now muruep00 knows how supermassive BHs grow in galactic centers, without the need for negative energy, or time transformations.

Your difficulties might also be related to the current Coronavirus situation. There is little incentive to hire people if most economies are at a standstill. Hopefully you'll see some interest from employers once the situation starts to change. Even after you find employment. You work to survive; you learn because you like it.

Are you saying that If space and time were not continuous, but discrete, then space and time translation symmetries wouldn't hold, and momentum and energy would not be conserved ? Even if the discrete steps were at Planck scales ? Are we sure they are conserved at such scales ? Maybe Noether is a macroscopic limit approximation, like all quantum effects seem continuous at large scales. ( or have I simply failed to understand what you mean ? ) One could use the argument that momentum and energy are quantized in quantum field theories, so the HUP might dictate that their non-commutative partners, space and time, are similarly quantized in a quantum field theory of gravity. ( but we had this discussion on Monday, in the thread about 'nothing' )

That image sure looks like a 'sombrero' to me , unfortunately any symmetry break is a 'fall' from an unstable false potential to a lower ( more ) stable one. This vacuum energy has to go somewhere, and usually it leads to an inflation. I can't see the electroweak symmetry break not leading to an inflationary period. And of course by radiation dominated, I mean only massless particles, so definitely before baryogenesis and the plasma era ( maybe I'm using the term 'radiation dominated' wrong ). Those are some of the reasons why I say 'makes sense to me'.

My niece works with Greg Frewin, a magician in Niagara Falls. He does this one simple trick with cards, where the face value of the card continuously changes. He then goes on to explain how he does it, and everyone in the audience feels like an idiot, because it is extremely simple.

I guess that's a good thing. Reduces hydraulic systems fires.

How about... A map is a two dimensional representation of the three dimensional spherical world. So, just as you might see the Eastern part of Siberia west of Alaska at the far left hand side of the map, while the rest of western Siberia is on the far right side of the map, the implication is that the surface is unbounded. IOW, travelling in the outward direction off one side of the map, brings you to the other side of the map, just as on the real spherical world. Local curvature is caused by the local accumulation of mass-energy ( momentum ), and give rise to 'dimples' on the two dimensional representation of space-time. Global curvature is caused by the total mass-energy of the universe ( including dark matter and dark energy ); if above a threshold value, then there is enough gravity to curve the universe back on itself ( positive curvature ), and parallel lines will converge and meet at some point. At the threshold value the universe is flat, and below the threshold value curvature is negative, and in neither case do parallel lines converge, so the universe is open and infinite

Better insulation ?

Ha ! I've met some magicians; I wasn't that that impressed .

Time is carried by the electromagnetic force ?? Time is an electromagnetic force ???? Makes one wonder how nuclear events can happen as thy are not governed by electromagnetism. And neither is falling off your chair due to gravity. I guess those things simply don't happen in your reality; they do in ours This is not the rigor Phi asked for.