*taps microphone*
Look, I'm not a medical doctor, I'm just a humble physicist. But I can tell you with some assurance that no one is being MAGNETIZED by vaccines.
*Furiously hammering a nail into my own arm*
OH YEAH, THEN EXPLAIN WHY THIS STICKS.
The speaker in the first video appears to be a doctor who claims that vaccines do not prevent infections. On her website she claims that they “cause disease.”
A lot of people invoking Magneto here, but is anyone brave enough to call for a fully vaccinated Sir @IanMcKellen to put spoons and forks all over himself to see if they stick.
“Senator Kelly, what I am trying to tell you — what I am trying to explain to this committee — is that something is activating the mutant X-gene.”
• • •
Missing some Tweet in this thread? You can try to
force a refresh
Mathematician Bernhard Riemann gave his famous lecture "On the Hypotheses Which Lie at the Foundations of Geometry" #OTD in 1854. He expanded on ideas introduced by his mentor Gauss and introducing what we now call Riemannian geometry.
Image: Familienarchiv Thomas Schilling
Riemann's geometry is broader than the geometry axiomatized by Euclid. He generalizes the infinitesimal version of the Pythagorean theorem describing the distance between two nearby points, and dispenses with the infamous 5th axiom about parallel lines.
(Euclid's 5th postulate basically says that if I give you a straight line and a point not on that line, both in a plane, you can draw a second line through the point that never intersects the first line. That's not true on intrinsically curved surfaces like a globe or a saddle.)
Albert Einstein, age 26, submitted his paper "Concerning an Heuristic Point of View Toward the Emission and Transformation of Light" to Annalen der Physik #OTD in 1905. It explained the photoelectric effect and established the reality of quanta. onlinelibrary.wiley.com/doi/abs/10.100…
This is the first paper from Einstein’s “Miraculous Year,” when he explained the photoelectric effect, Brownian motion, and special relativity. It was the work on the photoelectric effect that was singled out sixteen years later in his Nobel citation.
Here is a thread on the motivation for Einstein’s paper, his claims about the nature of light, and how a famous physicist who was sure Einstein was wrong ended up providing the strongest evidence in support of his hypothesis.
Mathematician Grace Chisolm Young, author or co-author of a host of articles and books on set theory, geometry, topology, and calculus, and the first woman to officially earn a doctoral degree from the University of Göttingen, was born #OTD in 1868.
Image: Sylvia Wiegand / MAA
It’s hard to say exactly how many papers and books she produced. She wrote several articles on her own, more as co-author with her husband William, and also worked on many projects where William appeared as sole author. It’s estimated they wrote over 200 papers & books together.
Grace Chisholm Young is best known for her contribution to what is now called the Denjoy-Young-Saks theorem, classifying the possible behavior of the Dini derivatives of arbitrary measureable functions.
Image: Young, Quart. J. Math, 47 (1916) babel.hathitrust.org/cgi/pt?id=uc1.…
Mathematician Irene Stegun was born #OTD in 1919. A major contributor to the Works Progress Administration’s Mathematical Tables Project, she’s probably best known as co-author of the classic “A Handbook of Mathematical Functions” — usually referred to as “Abramowitz and Stegun.”
Almost everyone in physics, astro, and applied math has a copy of this book — physical or digital — somewhere on their shelf.
Something I did not know is that Milton Abramowitz, who was Stegun’s co-editor on the project, died of a heart attack in 1958. That was after the book was underway but well before it was finished. Stegun took over and saw the project through to its publication in 1964.