article Definition and 359 Threads

An article by an author whose paper was proved wrong https://www.nature.com/articles/d41586-024-02870-z

I give the link to this online article, and at least initially, I make no comment. Much varied information. https://www.everyculture.com/multi/A-Br/Basque-Americans.html

hello I own two books of quantum physics In the first part the authors emphasize the bra-ket notation, explaining how important and useful it is in the second part, they go to pratical examples no mention of brackets , they just use the Schrodinger's equation.... may you suggest a book or an...

Hello.I read this article today... https://www.eurekalert.org/news-releases/994149 ...and followed the link to this Nature Astronomy page. https://www.nature.com/articles/s41550-023-02029-2I was wondering if this finding could be explained in a way that could help me grasp it better? To be...

From the Washington Post https://www.washingtonpost.com/science/interactive/2023/nasa-jpl-space-exploration-challenges/?itid=sr_3 Does anyone disagree with the idea “that the lab simply has too many missions and not enough experienced engineers to pull them off” ?

I'm posting this in "Quantum Physics" although it is just as much "General Relativity". A paper entitled "Quantum gravitational corrections to particle creation by black holes" was published in Science Direct earlier this month. It appears to provide an event horizon mechanism for holding...

https://theintercept.com/2023/01/19/covid-origin-nih-emails/

https://www.bbc.com/future/article/20230116-how-donkeys-changed-the-course-of-human-history

https://getpocket.com/explore/item/these-people-love-to-collect-radioactive-glass-are-they-nuts It talks about uranium giving off "alpha waves/rays" & "beta waves/rays", and an isotope of U-308. My understanding is that alpha & beta radiation is particle in nature whereas gamma radiation is a...

https://physics.aps.org/articles/v15/162 Looking for a layman's summary of this article. If I spent a couple of hours maybe I could do it. Then again, maybe not.

I have two doubts about the article Raman published in 1928 on Nature when he discovered Raman effect, precisely about these two sentences he wrote:1. What does it mean the modified scattering corresponds to their fluctuations in Compton effect? I think he's talking about the radiation...

A journal sent me an email asking me to be an adjudicator for one article since the two reviewers disagreed on their recommendations. I accepted based on the abstract. When reading the paper I found that (a) The author is citing me, not a big deal I guess. but (b) The author gives a solution...

Link to my insight Article it's right where I need you to start checking, read the above boxes to, check out the picture to see examples of the kind of sequence of sets we are dealing with. I need you to read the section jusr below the first picture entitled "3.0.2 Lemma 2.1: Nesting Property of...

A big article on dog breeds, genetics, and behavioral and other traits has been published in Science (the journal).

I asked about this some years ago but I cannot remember into which forum board I put it, but I wanted to know why the brightness of nylon bass strings go dead so fast on classical guitars and the related. I found an explanation in an online article, under the heading, String maintenance: Why do...

I was about to post in a thread about a referenced article, when all references to it were deleted by the moderators because it was from a predatory journal. I was wondering what other people found to be red flags.

https://pubmed.ncbi.nlm.nih.gov/24995959/ What does it mean by PC in this article?

Not what we want want to be reading in the BMJ at this time regarding trial integrity. The Vaccine works, the data is overwhelming but this casts a shadow on the integrity of the trials and the Science community as a whole (especially seen from the tax payer/layman perspective) Concerns raised...

Wikipedia while deriving Bertrands theorem writes after some steps : However by a similar argument we can say that since ##β## is a constant then we can directly solve ##J^{\prime}(u)=1-\beta^{2}## and find that ##J=\left(1-β^{2}\right) u##) which is wrong. What went wrong?

I am looking for a modern review article on high pressure equations of state and planetary interiors. Preferably post 2010. Does anyone know of one? Thanks.

I just found and am reading the online article, https://itsthevibe.com/everyday-object-life-hacks/26/ . Just before I reached this article, I was guessing that it was going to discuss diet drink of coca cola containing either some artificial sweetener or aspartame, but NO! The article...

If this is true I think it is very interesting and encouraging so, Any expert can help? https://www.inc.com/john-brandon/brain-scientists-have-made-a-big-discovery-about-ocd.html https://today.duke.edu/2016/07/ocdreceptor "Brain scientists at Duke University tested lab mice who were bred with...

hi guys I am trying to publish a paper and finally it got a moderate revision, but there is a little problem : after submitting the revisions which wasn't much, I received an email from the publisher saying "We notice that you may have used previously published material in your article" , the...

"A single neutrino has a mass of about 2 billion-billion-billion-billionths of a gram ... A neutrino with 6.3 petaelectronvolts (PeV) of energy ... is equivalent to the energy of a swarm of 6,300 mosquitos [moving at 1mph] ... [or one mosquito accelerated to] Mach-8.2..."...

Hi All Here is how the Aussies are making the Oxford Vaccine: https://www.abc.net.au/news/science/2021-02-12/covid-19-vaccine-oxford-astrazeneca-adenovirus-csl-manufacturing/13140104 Thanks Bill

Dear Python programmers, There is a new article on the "origins of Python" at https://en.citizendium.org/wiki/Python_(programming_language) The Citizendium is a partner site with Physics Forums (cross-linked); we are looking for Python programmers to review and comment on the new article (on...

Article: https://phys.org/news/2021-01-covid-lockdowns-drove-older-australians.html -- Older Australians are having problems with energy poverty. Because COVID has forced them to stay at home and inside, heating and mostly cooling costs have increased by as much as 50%. Instead of going to...

https://www.scientificamerican.com/article/new-views-of-quantum-jumps-challenge-core-tenets-of-physics/?fbclid=IwAR0z2pTmGqTBkm2JzvSNe6piKPZCGbhdpyZWcHeLO_2B-w5fPxFRKgfrGvY I love quantum physics almost mystical and paradoxical nature. That seems to be ending. Especially with the advent of...

We all know that Feynman declared wave-particle duality as the central/only problem of quantum physics. Not sure how to evaluate a recent publication summary on this topic: https://sciencex.com/news/2020-11-wave-particle-duality-entanglement-customary-pitfalls.html Would like others take on...

Hi all, I was reading this article https://asiatimes.com/2020/11/the-big-bang-never-happened-but-fusion-will/ And I got somewhat confused. As most I've been taught that BB has succeeded in giving most of the cosmological predictions that we observe [nucleosynthesis, formation of galaxies, cmb...

https://www.scientificamerican.com/article/do-we-live-in-a-simulation-chances-are-about-50-50/ I mentioned this just last night and a great article in Sci American was posted this morning. So what do you think, are we living in the matrix? I say no, however I have no problem viewing DNA as a...

A bit of physics history in this article. How Michelson (yes, that Michelson) measured the first stellar diameter (ok, except for the sun) at the Mt. Wilson Observatory. https://www.mtwilson.edu/wp-content/uploads/2019/12/50971-MtWilson-proof.pdf

I'm typing up answers to the exercises in my Insight article "A Path to Fractional Integral Representations of Some Special Functions", this problem is from section 1 (Gamma/Beta functions). I need a bit of help with this one: The problem statement: 1.9) Use partial fraction decomposition to...

I belong to an institution where they are subscribed to view the article contents in Nature Publications. I used to be able to download articles without problem but recently, I tried downloading a research article from Nature Physics, but the "Download PDF" option was missing, although the main...

I thought this might be worth a read: https://iopscience.iop.org/article/10.1088/1361-6552/aa5b25/pdf

Excellent read on the brokenness of the scientific method: there are many, many issues, ranging from conflicts of interest, data falsification, lack of proper incentives, abysmal lack of statistical knowledge, etc. As many as HALF of scientific papers published today might simply be wrong! In...

On this page https://mathworld.wolfram.com/Cauchy-RiemannEquations.html ... ... above equations 8 and 9 it says : These statements seem to be saying that f is independent of y at the x axis, and independent of x at the y axis. Is this necessarily correct for any f? I can see intuitively how...

I was reading this article @ Medium, which shows our Neanderthal (3K or so times removed) cousin looking at Scholz's Star: And then the Wikipedia article about it https://en.wikipedia.org/wiki/Scholz's_Star which says: Prehistoric folks most certainly did NOT have access to telescopes...

Neural networks have come a long way since I first took a course, 25 years ago. Now that I'm in the Online Masters in Analytics program at Georgia Tech, I see these topics come up often. I found the following article an interesting read...

Here is the Physical Review article: "Supernovae sparked by dark matter in white dwarfs" "A ball of asymmetric dark matter accumulated inside a white dwarf and collapsing under its own weight sheds enough gravitational potential energy through scattering with nuclei to spark the fusion...

Hi everyone! I honestly wasn't sure where I should put this, but I had recently come across this online article from Scientific American about researchers from NIST and the University of Colorado having developed the ability to trap and gain control of "phonons" (sound "particles", roughly...

Can someone take a look at this article and first confirm its accuracy and if it is accurate help me understand it a bit more? https://www.livescience.com/19975-spooky-quantum-entanglement.html

This is in reference to the following essay: https://www.mdpi.com/1099-4300/20/11/877 He's talking about laboratory techniques, which I don't know about. But it sounds like he's saying that the Bell violation comes from the necessity to select the most likely pairing of the two detection...

I am currently studying this paper on quantum synchronization. The first page gives an introduction to synchronization and the basic setup of the ensembles in the cavity. My query is on the second page where the following statements are made. Can anyone see why the implication is that all...

For all you solar astronomers out there An interesting new article from Emily Mason at the NASA’s Goddard Space Flight Centre in Greenbelt, Maryland continue reading at ... https://www.nasa.gov/feature/goddard/2019/unexpected-rain-on-sun-links-two-solar-mysteriesDave

A physicist I know submitted his article to Physics Review Letters, and the article was rejected. In the rejection letter, PRL sent him the two reviews upon which the judgment was based. OK, the normal reaction would be to do a bit of appropriate revising and try another journal, maybe one...

Hi everyone. I found the following article from Physics World on the pathway to industry. https://physicsworld.com/a/your-pathway-to-industry/ I was curious about what you think about the article, and if there is anything any of you would like to add in regards to career paths for physics...

So, I have nowhere near the level of understanding to evaluate this article I found: https://arxiv.org/abs/physics/0309118 From the abstract: " a maximum force implies the field equations of general relativity. The maximum force in nature is thus equivalent to the full theory of general...

Link: https://www.techtimes.com/articles/228798/20180530/massive-genetic-study-reveals-90-percent-of-earth-s-animals-appeared-at-the-same-time.htm Question: Does this article support Evolution or Disprove it? I've seen Pastors Link: https://www.youtube.com/watch?v=5dkwg4fKElw using this article...

Hi all, I am a professor in mechanical engineering and I have several master thesis students and I am facing the problem with the quality of their thesis. Especially, most of the thesis I have to correct are often very long because they are rich in useless information and lack of literature...