They are Steven E. Koonin, a #physicist & author of a best-selling book that calls #ClimateScience “unsettled”; John Christy, an #atmospheric scientist who doubts the extent to which #human activity has caused #GlobalWarming; & Roy Spencer, a #meteorologist who believes that #clouds have had a greater influence on warming than #humans have [okay that last one is just bonkers].
Happy birthday to #physicist Harriet Brooks (1876 - 1933) who discovered atomic recoil, Radon & recognized radioactive elements could undergo chains of transmutations into a series of new elements. #nuclear #physics
She was Rutherford’s 1st grad student at McGill. After publishing her results in 1899 she completed her MSc in 1901 on “Damping of Electrical Oscillations,” before embarking on #radioactivity research. 
#linocut #printmaking #sciart #womenInSTEM #histsci
#OnThisDay Birth Anniversary of British #Physicist William Henry Bragg (1862). He uniquely shared a Nobel Prize with his son Lawrence Bragg - the 1915 Nobel Prize in Physics: "for their services in the analysis of crystal structure by means of X-rays".
British-Italian engineer Guglielmo Marconi obtained a patent for #Radio in London (1897).
Happy birthday to German-American theoretical #physicist Maria Goeppert Mayer (1906-1972), the 2nd woman to win the Nobel Prize for #physics. 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 than the last. So there are a series of quantum “magic numbers” (a term coined by Wigner):
Here comes Nicols Hatcher, the self-proclaimed "physicist by soul," to dazzle us with a mind-numbingly riveting tale of shapes and #algorithms. Get ready to be blown away by the exhilarating world of #monotiles and SAT solvers—because that's exactly what your weekend was missing! 
https://www.nhatcher.com/post/on-hats-and-sats/ #physicist #SATsolvers #weekendreads #HackerNews #ngated
James Clerk Maxwell (1831–1879) was born #OTD, 13 June. As a physicist, he ranks alongside Newton & Einstein (“He achieved greatness unequalled”—Max Planck; “I stand on the shoulders of Maxwell”—Albert Einstein).
Maxwell also wrote poetry: “Rigid Body Sings” is based on “Comin’ Through the Rye” by Robert Burns
Happy birthday to #physicist James Clerk Maxwell (1831-1879)! He dreamt up his demon to deal with the very odd 2nd Law of Thermodynamics (which is not a law like others, and can not be derived from first priciples). It states that two bodies of different temperature brought together in a closed system will reach thermal equilibrium; or, you cannot use a cold thing to heat a hot thing;
#sciart #linocut #printmaker #MaxwellsDemon #ImaginaryFriends #thermodynamics #mastoArt
Happy birthday #physicist Chien-shiung Wu (1912-1997), who came up with a truly beautiful experiment to test whether the weak force conserves parity (whether beta decay would be the same if reflected in the mirror)! In my print on the left I show Wu in her lab & a schematic diagram of her experiment. On the right I show her reflection, as in the mirror, & the mirror reflection of the experimental set-up & the shocking result, 1/n
The #Universe is suspiciously like a Computer Simulation, #Physicist says.
The Universe Is 'Suspiciously'...
@bud_t @nrao_hamradio @thenrao @ARDC @NSF My uncle Bill was a #physicist at #Wright-Patterson Air Force Base. I wonder if he worked on anything #nsf-related. 
3/
Can a #physicist please explain how something can be both a force and a particle?
Debate erupts around #Microsoft’s #quantumcomputing claims
#Physicists cast doubt on #Majorana1 chip
Henry Legg, #physicist at Univ of St. Andrews who had two preprints challenging the work, attacked. “It doesn’t look like Majoranas, at least to me,” Legg said. “Any company claiming to have a topological qubit in 2025 is essentially selling a fairy tale [that] undermines the field of #quantum computation … and public confidence in science.”
https://www.science.org/content/article/debate-erupts-around-microsoft-s-blockbuster-quantum-computing-claims
https://archive.ph/PD8mx
My 8 year old asked what would happen if you take the atmosphere clone it and put it at the edge of our current atmosphere. And I find that insanely nerd and need #scientist help. I'd assume earth's gravity would pull the new atmosphere in and thus making the pressure go up. But how much? What else?
#physics #physicists #physicist
This bugs the physicist in me each time I see this... WTF is "low side current monitoring"? I remember vaguely understanding it once but I forgot...
https://www.adafruit.com/product/5832
C'est comme les amplis différentiels qui ne sont pas vraiment différentiels (ils ne mesurent pas la différence de potentiel entre leurs entrées V+ et V-), pour ça, il faut un "instrumentation amplifier" 
<sigh> ah les ingénieurs...
Happy birthday to British #engineer, #mathematician, #physicist & #inventor Hertha Ayrton (1854-1923). I’ve shown her in my #linocut with a diagram of the dividers from her 1st of 26 (!) patents, one of her diagrams about the origin & growth of ripple marks & one of her diagrams of an electric arc lamp (a subject on which she literally wrote the textbook).
Born Phoebe Sarah Marks, she was the 3rd of 8 children
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.
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
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 
. https://pari.math.u-bordeaux.fr/doc.html
#KnowledgeByte: Ettore Majorana was a Brilliant Italian theoretical #Physicist who worked on #Neutrino masses.
Majorana disappeared under mysterious circumstances on March 25, 1938, after purchasing a ticket to travel by ship from Palermo to Naples.
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
#linocut #printmaking #sciart #mathart #SophieGermain #ChladniFigures #mathematician #Fermat #womenInSTEM #physicist
