Discovery Definition and 180 Threads

I don't understand the discovery of "accelerating expansion" in 1998 (hence the postulate of dark energy, etc..), because Hubble's old law already described exponentially accelerating expansion in 1929, right?

Peter Higgs died on Monday. One of the most well-known physicists because the Higgs boson was named after him - the only fundamental particle named after a person. He proposed the existence of the particle in the 1960s together with other theorists, then watched 50 years of searches for it and...

Paper here. https://www.lyellcollection.org/doi/abs/10.1144/jgs2023-204 Article here https://phys.org/news/2024-03-earth-earliest-forest-revealed-somerset.html "The record of fossil forests, where tree bases are preserved where they were living, so far dates back to those discovered in New...

Fire, Gravity, Electromagnetism, Atoms, DNA, Steam power, Nuclear, Quarks. All of these things have one thing in common. They are fundamental aspects of the universe that humans have uncovered and given names. However, all of these great discoveries occured quite some time ago and as a science...

In my news feed this morning, I got the following story: https://www.sciencealert.com/scientists-tested-einsteins-relativity-on-a-cosmic-scale-and-found-something-odd Sounded important, so I thought I would get the actual paper: https://arxiv.org/abs/2107.12992 Am I missing something? It is...

I really tried to solve it a lot and the info that I gathered is : Electrons or protons can be ABSORBED by cathode or anode so there must be some hole in the electrode for the rays to pass. These electrons ionize the gas and those positive gas ions move towards cathode.

Paper: N. Hurley-Walker, X. Zhang et.al, A radio transient with unusually slow periodic emission (Nature, 26 January 2022) Abstract: The high-frequency radio sky is bursting with synchrotron transients from massive stellar explosions and accretion events, but the low-frequency radio sky has...

Summary:: I need help from a experienced physicist on the topic of how could one make his discovery public I think that I may of have discovered a new discovery in the highpethetical topic of objects with zero/negative mass and I don't know what I should do with such a discovery or how to make...

I have been reading 2010: The Year We Make Contact, a sci-fi book belonging to a classic series by Arthur Clarke. The book involves a myraid of scientific concepts so I think it is worth it to verify if the scenes would be feasible in the real word. In this thread I'd like to focus on the scene...

I came across a story of Clair Patterson, who investigated the age of the Earth through isotopic analysis of lead in uranium, which evolved into a study of lead in the environment and the discoveries of widespread lead contamination and scientific misconduct on the part of various persons...

I hope it's appropriate to post a picture of a battery operated model of the Space Shuttle Discovery which flew in the 1960's ; lights and sounds. I came across it at the antique mall. It's missing it's vertical stabilizer, but I can make that,

I once heard that anti-matter has been observed long before 1932 (the year of its official discovery) in cloud chamber tracks but was not recognized as such. If I remember well it frequently appeared in the photographs of cloud chambers with its characteristic pair production phenomenon but it...

There is a documentary on the BBC iPlayer from July 1964 on the discovery of the ##\Omega^-##. It includes interviews with Gell-Mann, Ne'man, Feyman and Samios (from Brookhaven). It's available for over a year. If you have access to the BBC iPlayer it's definitely worth watching. Wonderful!

Summary:: <mentor moved to general discussion> I mean of the discovery of the Graviton or of any other unification theory that would explain gravity and would be compatible with quantum mechanics. And by impact I don't necessarily mean just the understanding of the world - this is implicit -...

Hi, I have few questions about cosmic microwave background radiation (CMBD) and trying to find simple answer at a basic level. I really appreciate your help and time! The universe is almost 13.799 billion years old and currently has radius of around 46.5 billion light-years. It is said that...

https://www.nationalgeographic.com/science/2019/12/first-active-fault-system-found-mars2/ One insight on this is seismometers on Mars can provide data driven inferences about Mars deep crust structure with reliably located fault zones. Based on paper presented at AGU FallMeeting 2019 ...

Summary: Why is the Nobel committee acting as though the discovery was of the same order as the discovery that Andromeda was another galaxy. Now this has been bugging me since ever. but the Nobel committee brought it up again "This discovery (1995 exoplanet) has opened up a Universe far...

Is the main focus of the physics career discovery, leading invention for the engineers? I mean in the hypothetical situation of the building of a rocket, would the physicist spend their time discovering new ways of making combustion or discovering new materials for a spaceship, and the...

hi all For the last week - 28 Aug - 2 Sept ( and still going) trip through the Canadian Rocky Mountains and then a cruise up the Canadian and Alaskan coast. Just a few hi-light photos to share :smile: Lake Louise, Alberta with hanging glaciers Bow Falls, Banff, Alberta Main Street...

Hi just saw the accidental discovery of fluid that will keep its charge-polarity...how can this be used?

Continue reading...

Just discovered that: if n is a 4 digit number such that the 2 digit number formed by its 1st 2 digits is 1 greater than the 2 digit number formed by its last 2 digits, and n is a square, then only one such n exists: 8281 Unfortunately, such a mathshaking discovery will not bring down the...

pg. 243 Falconer, I. (1987) Corpuscles, Electrons and Cathode Rays: J.J. Thomson and the Discovery of the Electron. The British Journal for the History of Science (BJHS, 1987,20,241-276). "One of their most important properties is that they are deflected by a magnetic field. This provided strong...

Where do you post mathematical discoveries? Recently I've founded and posted on facebook: https://i.imgur.com/EGbrnuN.png https://i.imgur.com/bNenU8Z.png https://i.imgur.com/aZ5Esss.png https://i.imgur.com/eCiqyvG.png τ is similar to Σ and Π but it appears to be in itself.

I guess i have two questions , is the magnetic field conservative or non-conservative.As far as i can see just looking at a magnetic field we have a curved path hence it wouldn't be conservative, however many textbooks assume it is.Is there something I am not seeing here? Furthermore would...

How come atom was proven to exist just because the electron was discovered in 1874, atom was like a fad of truth on early 1800s right, where atom was pictured at that time like a small brick of ball and nothing else (no electrons, neutrons, protons, parts, etc) and on that year also, chemistry...

Something new every day. https://www.nature.com/articles/s41598-018-23062-6

Jung Yul Kwon et al, How Will We React to the Discovery of Extraterrestrial Life?, Frontiers in Psychology (2018). DOI: 10.3389/fpsyg.2017.02308 https://phys.org/news/2018-02-humans-react-pretty-news-alien.html#jCp Answer: probably well (this is a limited pilot study) The pilot study analyzed...

I am trying to sort out a discrepancy I see between historical accounts which suggest that there were "hundreds of strongly interacting particles (hadrons) believed to be fundamental..." (Wikipedia under "particle zoo" among other places), and my actual count of such particles. Specifically...

Sorry for the wrong prefix, but it is the most appropriate one that I could have chosen. I have been for long wondering if mathematics would be considered a discovery about the universe or an invention of the human brain. If it is a discovery, then math is the universal language of the universe...

Hello I would like to know more about the history of the discovery of the isotopes, what there was before, and the short term impact on the chemistry and nuclear physics. Is this topic discussed in any book/review? Thank you for your time. Regards, ORF

Which Scientific Discovery (that you've experienced during your life) has been the most interesting or surprising to you, based on your prior knowledge? And why?

We've all had that moment as children when we realized something about the physical world (or mathematics, that also counts) based on our own experience and thinking, even when it is the most trivial, basic stuff. Those moments are like little "discoveries", and are, I believe, very special and...

Date: October 19, 2016 Source: University of Florida Summary: Everything we know about the formation of solar systems might be wrong, says two astronomers. They've discovered the first "binary--binary" -- two massive companions around one star in a close binary system, one so-called giant planet...

This particular exoplanet I think deserves a special thread because of the method used to make its discovery. This exoplanet is unusual in that it is one of the few exoplanets discovered orbiting a spectral type A star, and because it was the only one discovered using the pulsations of the...

I'm looking for journals/publications for last year's discovery of a star devoured by a black hole https://hub.jhu.edu/2015/11/26/black-hole-eats-a-star/ But I don't know where to look, the incident/object is not given a specific name in the article, and I need more detailed information about...

In what year was it first discovered that wormholes are non-traversable because the introduction of infalling matter caused the throat to collapse? Who discovered this?

A yet unverified experiment may mean a paradigm shift in QM: http://advances.sciencemag.org/content/2/2/e1501466.full http://futurism.com/new-evidence-could-break-the-standard-view-of-quantum-mechanics/ What do you make of this?

You have probably all heard about magnetic monopoles creation ,but I just want to ask is there theoretical basis (without denying already proven theories) which would allow us to expect natural magnetic monopoles discovery? https://arxiv.org/abs/1607.07460...

Many phisicists writed scientific papers at early age like maxwell who wrote one at 14 another one at 16 then at 18 but these 3 papers weren't a new theory or discovery right ? So why a scientific paper is always noted in the biography of physicists if it's not important because it's not a...

Many physicist have been awarded their Phd in physics after a long time of study or after a good discovery likr einstein when he was 26 and wrote 5 papers on different subjects in physics . Nowadays if a person started his studies in university in physics at age 19 and he has made a good...

who was the first person to discover how to measure the wavelength of absorption lines in the solar or stellar spectra and what method was used?

Supermassive black hole here;http://www.npr.org/sections/thetwo-way/2016/04/06/473091314/supermassive-black-holes-may-be-more-common-than-anyone-imagined What impact if any for BB theory. Should LIGO, detect this. Will stellar evolution need to be tweaked in terms of galaxy formation and...

What can a theoretical physicist discover something new about the higgs boson . This is for experimentalist but can a theoretical physicist discover anything new about the higgs boson ? And what peter higgs discovered other than detected it . He is a theoretical physicist did he wrote a new...

A SURPRISING DISCOVERY: I have only recently discovered the following equations of a certain function of a pair of two integers, which surprised me:- f(x, y) = {f(x+z, y+z) + f(x-z, y-z)}/2 ----------------1 f(x, y) = {f(x+1, y+1) + f(x-1, y-1)}/2-2 .-----------------2...

I found this article fascinating. Imagine overlooking something so simple for so long!

A question from a physics laymen to those more advanced: if eLIGO detects gravitational waves by the difference to the combined laser wavelengths (a difference to the destructive interference pattern following curvature of space-time in each individual pathway), how is it that the lasers...

As the discovery matches templates based on GR, and the regime is of very strong gravitational fields and very high speeds (relativistic speeds), and there is a 90% match between model and measured data, this does rule out linear or quasi linear alternative theories of gravity?

Does the discovery of gravity waves imply the existence of gravitons?

Could someone please describe the recent LIGO project, gravitational waves and their detection in simple terms. PLEASE.