Category Archives: Uncategorized
Feynman Spirals Part 3 – FAQ
Here’s a brief F.A.Q. for things I’ve been asked about the spiral & the double slit experiment. Q: First off, what the actual directions of the plot correspond to? Good question. In the original 2D graph, one axis was distance … Continue reading
Feynman Spirals Part 2 – Making Models
So after playing around with the Feynman Amplitude Spiral and plotting the shape on the computer, I realised I really, really, really wanted my own tangible version of it. Here’s a few of my attempts. I’ll also include links for … Continue reading
Plotting Feynman’s Amplitude Spiral after 50 years
I’m tickled pink to have the honor to be (so far as I know) the first person to publish a 3D rendering of one of Feynman’s favourite experiments, and hopefully make a key concept in quantum physics much more tangible … Continue reading
Making the Braided Galton Board
Here’s the process for making the wire & bead Galton boards. First up, cutting the wire to length. I screwed two wood screws right into the bench, then wrapped the wire back and forth till I had a bundle of … Continue reading
Improved Braided Galton Board
I’ve played with the Galton Board before a couple of times. It’s a lovely demonstration of the ‘Central Limit Theorem’ in statistics. That is, it shows in a really intuitive way how repeated binomial events (like coin flips) average out … Continue reading
I’m on EEVBlog
At the Electronex trade show last week I bumped into Dave Jone from EEVBLOG. We got chatting about the polarization stuff I was working on, and after a few minutes Dave turned to me and said “Wait, why aren’t we … Continue reading
Collatz Dominos
Warning: Level 5 cognitohazard ahead. Mathematicians especially susceptible. Proceed at your own risk: (More seriously, if you like puzzles/math, haven’t heard of the Collatz before, and have a big exam in the next couple of days, maybe skip this post?) … Continue reading
