Is it a Particle? Is it a Wave? No, it's Double Slit!

https://youtu.be/mZ4eRfLuDGU?is=0w9kgVdEJeO3Tek-

#HowItActuallyWorks #physics #physicists #physicsedu #physik #physicsfun

Atoms waste a huge amount of space. Proof me wrong: https://youtu.be/5liOsH1LGmo?is=XMSxxTQyMCqeG3LR

#HowItActuallyWorks #physics #physicist #physicsexplained #physicsedu #physicsfun #physik #PhysikEdu

So, I'm delving into simulating Quantum Field Theories on the lattice again, for self-education, but also to complement the second edition of our Quantum Field Theory textbook, which is kind of overdue.

I find the ideas behind this very fascinating, so maybe I'll share some of my journey here.

Here's my first quantitative result on a 16x16x16x16 spacetime lattice, the two point correlations of a free scalar field with a mass of 0.2 units. Amazingly, the exponential decay says that the Mass is 0.2 units - success!

So join in with the fun :)
#physics #physicsedu

Quantum Mechanics is confusing? You should watch this: https://youtu.be/kUWgLmNcqz0?is=NZK-o9dnRoLg46ta

#HowItActuallyWorks #physics #physicist #physicsexplained #physicsedu #physicsfun #physik #PhysikEdu

Come on, a leeetle bit lower.........

(testing XTALs for my next student project, a DIY CW transmitter from scratch)
Haven't decided on a band yet, but very probably 40, 30 or 20. Trying to pull this one down into CW territory.

The structure of the #physicsedu #hamradio #electronics project will be:

2 students make a dipole and low pass filter,

2 students build the highest gain switching amplifier they manage, probably IRF5xx, and

2 students build a colpitts style xtal oscillator which starts cleanly enough to key with the supply voltage+output buffer, probably bd139/140 or so

Not a Celestron, but looks like I might inherit a similar vintage Meade 8" oh boy can't wait :)

#astronomy
#physicsedu

I know I'm late to the game by almost a decade, but I finally sat down to learn how #ai Transformers and Attention work, and I must say it's pretty fascinating.

The most mindboggling aspect for me is that Query Key and Value functions dynamically learn their roles, and that attention heads also emerge by themselves with semantic meaning subspaces in the embedding space which they concentrate on.

Now on to implement a simple one in torch and work out course materials....

#physicsedu

Tired of Easter Eggs yet? Check out this: https://youtu.be/fpjBSGky8VU?is=FzvejjAFl5kgIbWX

#physics #physicists #physicsedu #physik #physicsfun #HowItActuallyWorks

New toy dropped for preliminary testing (to be followed by the 40 TOPs version), hopefully helping us show our students that AI and Machine Learning is more than typing prompts into ChatGPT.

We are working out a concept for a course and have big plans ranging from Climate data, autonomous drones, astro and robotics image recognition, and simple language models.

#physicsedu
#ai

Interessanter Fall für sprachsensiblen Unterricht:

Mein Tafelanschrieb, sinngemäß:

"Die Dreiecksfläche entspricht der zum Dehnen der Feder benötigten Energie".

Schüler bemüht sich, aber bekommt den Satz absolut nicht sinnentnehmend gelesen.

Nach etwas stirnrunzeln formuliere ich um:

"Die Dreiecksfläche entspricht der Energie, die zum Dehnen der Feder benötigt wird." und es gibt kein Verständnisproblem mehr.

Was lernen wir daraus, #fediLZ ?

#physicsedu