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Showing content with the highest reputation on 09/16/22 in all areas
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If you reorder the letters of "Eigenvalue Matrix" you get "Laxative Meringue", a suitable label for the level of science in a recent discussion I took part in.2 points
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You’re still missing the point here - the light cone is not meant as a way to visualise trajectories of anything, which is why the question is somewhat misplaced. In some sense it does indeed show how light travels on a time vs distance plot, but that’s not its purpose. Its purpose is to show regions of causality relative to a given event. It is called “light cone” only because that surface represents the maximum distance from the event any signal could have travelled at a given point in time, which of course relates to the speed of light. The way it’s meant to be used is that you draw in some other event, using the given coordinate axis - and then see immediately whether these events are causally connected, or not. IOW, the light cone is a way to visualise those regions (!) where the (flat) spacetime interval between events is positive, negative, or zero, as a function of coordinates. I don’t think that’s very surprising, actually. Taking h->0 on the boundary physically just means that spacetime on the bulk is taken to be smooth and continuous; so you can swap any two events without changing anything about the BH. So of course the entropy will diverge. Having h be a finite value on the horizon other than zero means that spacetime on the bulk has a finite number of degrees of freedom - in other words, we’d expect that there will be regions of spacetime somewhere beyond the horizon that are not classical, ie not smooth and continuous. Thus, GR breaks down there, which is why we have a singularity appear in the theory. So to me, the very concept of a finite entropy being associated with the horizon means that the bulk it encloses cannot be fully classical.1 point
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KosherDill has been banned as a sockpuppet of several accounts designed to waste time through the use of conspiracy, Argument from Incredulity, and assertions with no reasoned support.1 point
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A frank discussion between Xi Jinping and Putin about the latest Russian mishaps in Ukraine would probably also provide some pause for serious thought by Xi about any future Chinese plans vis-a-vis Taiwan. The recent imbroglio over Speaker Nancy Pelosi’s visit to Taiwan, and the US navy’s subsequent despatch of warships through the Taiwan straits would have brought home to the PRC that the US is quite serious about meeting its stated committment to supporting Taiwan in the event of a military attack by China. The patent superiority of American high-tech weapons systems supplied to Ukraine such as the HIMAR artillery rockets, SAM air defences, and the anti-ship missiles that sank the flagship of Russia’s Black Sea fleet will all be a potent reality check on China’s more hawkish generals. Taiwan itself is a formidably difficult target to invade. During WW2 the US military chiefs made a decision at the Honolulu planning conference in 1944 to bypass Formosa (as it was then known) completely, and to invade the island fortress of Okinawa instead, which led to the largest and bloodiest amphibious operation of the Pacific war. The invasion of this much smaller garrison island led to over 40,000 US casualties, including the 4-star General Buckner who was the commander. (He was killed by shrapnel from a Japanese artillery shell while inspecting the clean-up operations). It should be noted that Okinawa has an area of just 463 sq.mi. Taiwan by contrast has an area of 13,976 sq. mi. The cost benefit value of attacking Taiwan was too high to contemplate in 1945, and remains so today.1 point
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Yes, you're right about 3.7. I was quoting only an approximate figure. I used to make "nitrogen tri-iodide" * at school, which we painted on the stone steps to the lab. When the teacher arrived his heels crackled and emitted little puffs of purple smoke, which was most gratifying and psychedelic (this was 1971). * More properly an adduct: NI3.NH3, apparently. My tutorial partner at university had made picric acid at school, which was the basis for a rather a good end of term prank. The school song would be sung, to piano accompaniment, and there was a bridging passage between the verses, employing one note that was not otherwise in the piece. So they painted that piano hammer with picric acid and when the moment came there was a satisfying BANG, accompanied by a cloud of dust, dead ladybirds etc., from the interior of the piano, followed by an eerie pause, before the pianist hesitantly took up the tune again.1 point
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I hear he's ordered a 32ft table to replace the 16ft table...1 point
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As an older, somewhat educated person, I stay away from social media ( forums, which exchange ideas, are my weakness ). Young people have never experienced the old style informative, not opinionated, news, and get a lot of self re-enforcing opinionated news from social media. The 'splinternet' makes it easy to find like-minded people who share your opinions, no matter how extreme, and 'splinter' us into different groups. Social media is possibly the biggest social engineering experiment ever, and although the internet was initially hailed as a way to bring us together, it could turn out that it ruins society as we know it.1 point
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Family. Sunday Night Football. Pickled onions. Hiking in the woods. Van Morrison. Marx Brothers movies. Novels. Watching a stiff breeze in the Fall cause a couple thousand leaves to start tumbling toward the ground. Vanilla ice cream with fresh picked strawberries. Watching my granddaughter figure something new out for the first time. I could do this all day. In fact, the more things I list, the happier I am to be alive. Thanks for reminding me to always look on the bright side of life. 😁1 point
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Seems as the conservation of energy force is a new term , I'd have to make up a new term and unit that would only get ridiculed. The best I could come up with using present terminology is using Eigenstates . However I'd like to use cubiks of force as a unit because 8 points of space form the smallest cube possible with no core . In essense that is using volume to explain the force magnitude but there is two sets of forces at work . It's difficult to explain because the value of any point of absolute space is 0 , 0 eigenstate , but the value of any point within space-time is a value of 1 , 1 eigenstate . Both these values are constants but 0 can become a ''positive'' constant rather than a ''negative''constant by conserving a point of energy that tries to pass through . I have quickly drew another diagram to show you as you are polite and interested . Additionally in absolute space there is no motion until the space-time frame as grown . The conservation of energy force of absolute space applies ''the brakes'' and any matter or energy leaving the already formed quantum mainframe , for a better word , become ''gluons'' (fixed in position) , growing the quantum mainframe (space-time).-1 points
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Science knew the Caesium atom frequency was a variant before they defined time to equal the frequency . They have to set climate control to keep a steady state . I know alot about time dilation and know that Δu∝Δf . u is internal energy and f is frequency , I am sure you aware the given time value is arbitrary ?-1 points