Fórum Physics Forums: Science Discussion, Homework Help, Expert Commu…

EHT Observations vs. Gravitational Collapse ModelsAre we looking at an infinitely dense singularity, or a Symmetry-Ordered Superfluid (SOS) Toroidal Core?

I just finished reading the first book of Alexander Soltsjenitsyn (again), and as we all know he's one funny guy with one funny life behind him (sarcasm). But then I randomly walked into this one: The Art of Being Normal . And where AS doesn't have a single happy end or indeed strand... Read more

I saw @fresh_42 's thread in "Art, History and Linguistics" about how to use the "w" in "www" and wanted to add this little other trick to it (after I was done giggling about the broken English joke) but it's of course closed for replies. I know it may seem obvious but Google Translate is... Read more

In retirement it is my goal to bake pizza in the wilderness by installing a wood burning oven in the bed of an EV truck. I would wish to be able to generate enough power to charge my vehicle. In my research I came across this site and discovered a Stirling Generator. It seems like I could custom... Read more

Hi. I’ve seen a number of schematic diagrams for the Delayed Choice Quantum Eraser experiment. Some include a prism to make the two idler photon paths diverge. However, the prism is shown refracting the ‘idler rays’ in a way which contravenes Snell’s law. E.g. see prism marked ‘PS’ (not the... Read more

I'm sharing a paper/code archive that's been through four journal rejections with no substantive feedback from any editor, so I'd rather get real technical eyes on it here than keep guessing at what's wrong. Background: my 1984 master's thesis (Missouri, advised by Bill Miller) used... Read more

"Making the Great Desert Bloom" (Distler, Karch) This paper proposes that a specific 3D CFT is the holographic dual of the standard model on AdS4. The dual is a Chern-Simons theory described in section 4, starting on page 9, where we get the Chern-Simons gauge group, with fermions on page... Read more

It is well known that any human no longer has a chance in traditional chess, go, or poker. Recently champ Shin-Jinseo was able to defeat KataGo after granting himself a one-stone advantage. That is, he places two stones before KataGo places one. This is called a two-stone handicap -- I'd call... Read more

[Mentor Note: Cross-posted threads merged] Rule: 0×0=0 Think like this,×n is time to type a number example: 1×2=2 is "type number 1 2 times then sum" So 0×0=0 is "type number 0 0 time then sum" the result is 0 because it's 0 time so you're not type to the input bar 0÷0=1: Its like "how... Read more

Hi everyone, I'm waiting for my university entrance. I have an interest in Astronomy. I've come here to learn new ideas about Astronomy and discuss my ideas with fellow people. And I hope to meet new Astro lovers. Thank you.

ΔU = Q + W Q = ΔU - W I am not sure how to analyze the changes in ΔU and W. The value of p increases, but how do we know about ΔV? For ΔU, the KE is constant and the PE increases since the molecules' separation is more but how do we compare the increase to the case of normal atmospheric... Read more

What if there's exception rule for 0 Rule: 0×0=0 Think like this,×n is time to type a number example: 1×2=2 is "type number 1 2 times then sum" So 0×0=0 is "type number 0 0 time then sum" the result is 0 because it's 0 time so you're not type to the input bar 0÷0=1: Its like "how much time to... Read more