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#masterclass

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universeinthelab

Mit Teilchen gegen Krebs – Melde dich an zu der Teilchenphysik-Masterclass bei GSI/FAIR!
Einen Tag lang könnt ihr lernen, wie sich biologische und physikalische Konzepte anwenden lassen, Krebserkrankungen mit Teilchen zu bekämpfen.
👤 Wer? Schüler*innen ab der 11. Klasse
📆 Wann? 4. April 2025
📍 Wo?  GSI/FAIR #Darmstadt
🌐 gsi.de/jobskarriere/angebote_f

©J. Hosan, GSI/FAIR, L. Weitz, GSI/FAIR
#ippog #ippogorg #physicsIMC #particlephysics #masterclass #research

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HairyHypnotist

#Darklands is coming up in one month! I'm going to teach a #Masterclass about Erotic Hypnosis, and I'd love to see you there!

I'm teaching the class twice: once on Thursday at 14:45, and once on Saturday at 11:00. (It's the same class repeated; there's no need to attend both.) Tickets are going fast: the Thursday class has about 25 tickets left, and the Saturday class has less than 10 tickets left!

darklands.be/masterclasses/

A poster advertising classes in Erotic Hypnosis at Darklands 2025 in Antwerp, Belgium. Thursday at 2:45pm and Saturday at 11:00am, tickets cost €25. Learn an introduction to hypnosis, how to use it in erotic play, and see live demos. The poster has a moody, black and white picture of me with a thick rope coiled around my neck. There is also a black and white picture of a man being controlled by someone else, like a marionette on strings.
#Darklands2025#Hypnosis#EroticHypnosis
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Terence Tao

An anecdote that I shared about rolling around on the floor back in 2000 to solve a math problem, both in my #Masterclass at masterclass.com/classes/terenc , and on #MathOverflow at mathoverflow.net/a/38882/766 , as well as the #NewYorkTimes nytimes.com/2015/07/26/magazin , has for some reason recently gone viral on various social media. Just for the record, I wanted to add some mathematical background behind the story, which eventually led to my paper arxiv.org/abs/math/0010068 . At the time, I was trying to construct solutions to an equation known as the wave maps equation on the sphere: the solution was like a solution to the wave equation, except being forced to take values in a sphere rather than in a vector space.

I was trying to solve the equation iteratively, breaking up the solution to a low frequency base solution and a high frequency correction. As a first approximation, the low frequency base could also be assumed to stay on the sphere and solve the wave maps equation, so the main problem was to work out what the high frequency correction was doing.

Because the high frequency correction also had to keep the solution on the sphere, one could assume as a first approximation that the high frequency correction was tangent to the low frequency base. So, at any given point in space and time, the low frequency base solution was located on some point on the sphere, and the high frequency correction basically lived on the tangent plane to the sphere at that point. But because the base solution evolved (slowly) in space and time, this tangent space kept rotating around the sphere.

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