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#physicist

1 post1 participant0 posts today
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Ele Willoughby, PhD

Born on this day: #physicist J. R. Oppenheimer (1904-1967). While best remembered for his role in the Manhattan Project, he was a giant of 20th century theoretical physics, nominated for a Nobel 3 times. ⁠
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In 1927 he & Max Born greatly simplified how we predict electrons behaviour within atoms. The Born-Oppenheimer or adiabatic approximation is based on the observation that electrons are 1000s times lighter than nuclei, 🧵1/n
#sciart #linocut #printmaking #histsci

Linocut portrait of Oppenheimer in a suit leaning on his hand, in purple ink on white paper. Above to the right is a spacetime diagram for a Blackhole in turquoise. Above to the left is a schematic for the adiabatic approximation in gold.
Public
Paul Balduf

Contrary to popular belief, #mathematician s and theoretical #physicist s don't just discuss their theories on blackboards all day, but much of the research in practice involves #software and coding. Recently, I started using #PariGP , which is an #opensource algebra system that has existed since the 1980s but is still being actively developed today. It has amazing abilities in the realm of number theory, all sorts of modulus and p-adic computations, etc. I use it because it is very fast in handling power series and polynomials. Of course, it can deal with big rational numbers and arbitrary precision float.
I recommend reading the "GP tutorial" pdf. It is one of the most entertaining tutorials I have done in a long time, written in a subtle funny way 😄. pari.math.u-bordeaux.fr/doc.ht

pari.math.u-bordeaux.frPARI/GP Development Headquarters
Public
Ele Willoughby, PhD

Happy birthday to French mathematician, physicist and philosopher Marie-Sophie Germain (1776 – 1831), known as Sophie. She taught herself mathematics using books in her father’s library and by corresponding with leading mathematicians of her day, including Lagrange, Legendre and Gauss, initially using the pseudonym Monsieur LeBlanc. 🧵1/n
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#linocut #printmaking #sciart #mathart #SophieGermain #ChladniFigures #mathematician #Fermat #womenInSTEM #physicist

Linocut of Sophie Germain (a young woman in with a collar with bow, under a dark dress, with a ribbon tied around her neck, long hair with centre part, half tied up with a ribbon in her hair). She is printed in dark blue with her own words about Fermat's Last Theorem in her own script carved into her hair and dress). Behind her in lavender is a grid of Chladni figures.
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SciXCommunity

American Physical Society, did you miss "Science Explorer: ADS for All #NASAScience" at #APSsummit25?

#ADSabs ➡️ SciX, an #openscience #digitallibrary providing #physicist w/ advanced search, visualization, & citation tools!

Access #physics, #heliophysics, #earthscience, #planetaryscience, #astronomy & more w/ familiar ADS features!

doi.org/10.5281/zenodo.15054991

ZenodoScience Explorer: ADS for All NASA ScienceFor over 30 years, the Astrophysics Data System (ADS) has been the indispensable digital library for astrophysicists. Building on this success, ADS is evolving to support more scientific disciplines. With the growing demand for open science resources, NASA directed ADS to cover planetary science, heliophysics, earth science, comprehensively, and NASA-funded research in the biological and physical sciences. As a result, ADS is becoming an interdisciplinary platform, the Science Explorer (SciX), unifying the physical sciences. SciX discipline-specific interfaces allow researchers to use their preferred terms to search a vast multidisciplinary database for relevant scholarly literature, data sets, and software. Links to the publisher’s version of record and open access versions, such as preprints, ensure access for all scientists. SciX visualizations map relations among authors and concepts, encouraging exploration of collaborations and themes across disciplines. Advanced functions suggest review articles, trending papers, and similar research, essential for tracking rapidly evolving topics. With robust SciX citation metrics and bibliographic tools, scientists can track their impact and identify key papers. Exporting custom libraries streamlines drafting articles, grant proposals, and literature reviews.  For ADS users, the SciX astrophysics interface is familiar, even offering the “classic” form. ADS and libraries are unchanged, while SciX expands to serve a broader community.
Public
SciXCommunity

American Physical Society, Did you miss did you miss "The Physics in the Astrophysics Data System" at #APSsummit25 last week?

SciX #digitallibrary (based on ADS) is the ultimate #openscience resource for #physicist — 13M+ journal articles, preprints, conference proceedings & more!

Advanced search functions, citation metrics, & visualizations that map research connections make your literature reviews more efficient & comprehensive.

doi.org/10.5281/zenodo.15054921

ZenodoThe Physics in the Astrophysics Data SystemThe Astrophysics Data System (ADS) is a gateway to over 13 million physics journal articles, preprints, conference proceedings, and books, one of the most comprehensive open science resources available to physicists world-wide. The digital library designed for NASA science indexes Physical Review ABCDEFMPRSX, Physica ABCD, Journal of Physics ABCDEFG CS, Physics Letters AB, Nuclear Physics AB, Journal of High Energy Physics, and more refereed journals plus non-refereed publications. In ADS, physicists can build complex queries of author, affiliation, title, keyword, or other metadata to find scholarly literature, data sets, and software. Links to the publisher’s version of record and open access versions increases access for all physicists. ADS visualizations map connections among authors and concepts, so physicists can pinpoint collaborations, influential works, and emerging trends quickly.  Advanced ADS functions suggest review articles, trending papers, and similar research, essential for following rapidly evolving areas. Citation metrics and bibliographic tools allow physicists to track their impact and identify key papers. Custom libraries exported from ADS help physicists draft articles, grant proposals, and literature reviews. NASA directed ADS to cover planetary science, heliophysics, and earth science comprehensively. Therefore, ADS is expanding into a multidisciplinary search platform, the Science Explorer (SciX), which reveals commonalities across the physical sciences.
#NASAscience#physics
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Knowledge Zone

#OnThisDay Birth Anniversary of David Livingstone (1813) - #Explorer in #Africa, and one of the most popular British heroes of the late 19th-century Victorian era.

Birth Anniversary of #Physicist and Nobel Laureate Frédéric Joliot-Curie (1900).

Birth Anniversary of Mario J. Molina (1943) - Mexican-born #Chemist known for his pivotal role in the discovery of the Antarctic #OzoneHole.

Happy Birthday Bruce Willis (1955).

knowledgezone.co.in/news

Public
rainey 🌻

So everything ultimately when you zoom in close enough is just physics. Matter is made of atoms and atoms are made of particles and particles are just bits of energy moving around excitedly. I might have missed a few layers but good enough for a layperson discussion.

I know there have been experiments to cool things to absolute zero, and I know we've gotten pretty close but not quite.

But what would happen at absolute zero, or do we even know for certain? If those bits of energy stop moving, do they cease to exist? Would the macro object just poof?

#physics#PhysicsQuestions#QuantumPhysics
Public
David Perris

TIL about Oliver Heaviside.

He was an #electrician , #mathematician and #physicist who made major contributions to the field of electro-magnetism.

He was born in #Camden , in #London . He discovered ways to improve the performance of telegraph lines (the internet of the late 1800s), he patented the coaxial cable, and he re-formulated the #Maxwell equations on electro-magnetism into the form they have today.

He was a Fellow of the Royal Society, and was the first recipient of the Faraday Medal.

He died after falling off a ladder.

https://en.wikipedia.org/wiki/Oliver_Heaviside

https://www.english-heritage.org.uk/visit/blue-plaques/oliver-heaviside/

#TIL #TodayILearned

Picture of Oliver Heaviside. A serious Victorian man, wearing a three-piece suit and tie, looking directly into the camera. He has short hair with a centre parting, and a close-cropped beard and moustache.
Public
Ele Willoughby, PhD

For the #PrinterSolstice2425 prompt lead, the woman who figured out why lead is particularly stable & 2nd woman to win the Nobel Prize for #physics: German-American theoretical #physicist Maria Goeppert Mayer (1906-1972). As the series of increasingly large atomic nuclei grows with additional nucleons (protons p & neutrons n) from hydrogen to transuranic elements, there are points where the binding energy of the next nucleon is a lot lower 🧵

My linocut portrait of Maria Goeppert Mayer on 11” x 14” white Japanese paper shows the nuclear shell model energy states in lime green up the left side. Next to this are the magic numbers rising vertically (sums of available energy states): 2, 8, 20, 28, 50, 82, 126 and associated elements for nuclei with those numbers of protons: He, O, Ca, Ni, Sn, Pb with the final hypothetical element unlabelled, all in dark blue. A 3/4 portrait from the chest up in dark blue is all the right side. Mayer has short hair, and wears a dark blouse with long thin white scarf draped around her neck, untied. Below the magic numbers are increasingly large representations of nuclei with increasing numbers of gold and white nucleons like clumps of balls.
#womenInSTEM#sciart#linocut
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