Jonathan Sanderson
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jjsanderson.bsky.social
Jonathan Sanderson
@jjsanderson.bsky.social
Family roboticist/STEM engagement academic/digital tinkerer/film maker/general-purpose geek. Enthusiastic about (but not necessarily good at): bicycles, photography, sustainability, kites, parenting. Newcastle, UK.
Ooh, ocean waves are particularly cool, though, in that the particle motion does involve lateral oscillation: sciencedemo.org/2014/05/waves/

(That website is slightly broken on mobile, but the video should play. I really should write the follow-up, ten years later. 😂)
Waves - ScienceDemo.org
I threw this together last night to try out an arrangement for a practical demo Elin is planning to build for a new show at the Centre for Life. I thought it might find wider use than just us sitting ...
sciencedemo.org
January 20, 2026 at 10:22 PM
Fruit pastilles is more authentic, though! The first prototype used them, before we switched to jelly babies for filming because… well, stabbing jelly babies is funnier, right?

But still: fruit pastilles are the OG wave machine sweet.
January 20, 2026 at 9:18 AM
The @iop.org have posted a higher-quality version, www.youtube.com/watch?v=2eMT..., and you’ll find loads of others. I’ve even seen it demonstrated by Microsoft’s education team.
A simple wave machine
YouTube video by Institute of Physics
www.youtube.com
January 20, 2026 at 9:16 AM
That was itself more than ten years ago. The original was at the National STEM Centre eLibrary in inexplicably poor quality. They reposted it to YouTube some time ago, sadly still at low resolution and with adverts enabled. Still, closing in on a million views! youtu.be/VE520z_ugcU
Wave Machine Demonstration
YouTube video by National STEM Centre
youtu.be
January 20, 2026 at 9:16 AM
The backstory here is that @rigb.org had an epic wave machine along these lines, which I used back in 1990. Ten years later, on #citv show The Big Bang, we worked out how to build it with gaffer tape as a torsion spring. Ten more years; I made a teacher training film with @alomshaha.bsky.social.
January 20, 2026 at 9:16 AM
It’s inversely proportional to the number of men using the technology. The proportion of women _might_ affect the timing, but it seems highly unlikely the men would allow that to be the case. 🙄
January 1, 2026 at 3:47 PM
Quite. Interesting restratification of Golgafrinchan society, really. Another few iterations and we should have credible upper and lower bounds for ambition and social awareness.
January 1, 2026 at 3:33 PM
We are, after all, Golgafrinchans.
January 1, 2026 at 3:24 PM
Agreed. Always aim to have as many takeoffs as landings. Parachutes are cheating.
December 31, 2025 at 9:21 PM
No, that’s perfectly reasonable. We’ve all seen enough Twilight Zone to know there’s a non-zero chance that any flight departing shortly before midnight on 31st December could arrive anywhen, at the very least.

Remember that time you took off in an A320 and landed in a Vickers Vimy, for example?
December 31, 2025 at 9:17 PM
Yeah, they were a thing. Not in our household, but I remember them at friends’ places. Wikipedia references Mary Berry so it must be true. en.wikipedia.org/wiki/Tunis_c...
Tunis cake - Wikipedia
en.wikipedia.org
December 30, 2025 at 9:27 PM
I think Kagi has optional AI. kagi.com
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kagi.com
December 29, 2025 at 12:21 PM
Aha, context! Yikes. Been there several years running, absolutely sucks rocks. Hope you all get better soon, and manage a happy Zoom-based Christmas like the good old days.
December 24, 2025 at 3:00 PM
Hate to break it to you, but you’re a day early. It’ll be cold by tomorrow.
December 24, 2025 at 2:29 PM
iPhones are relatively chilled about processing, or at least predictable. But yeah, all of this is one reason I still have a ‘proper’ camera. It’s not fake bokeh when it comes out of the lens.

Of course, this means all of my group shots have somebody gurning in them. Some phones ‘fix’ that.
December 24, 2025 at 8:19 AM
Bear in mind that some phones special-case the moon specifically: www.theverge.com/2023/3/13/23... (bah! Broken image links all over that article!)
How Samsung phone camera uses AI for moon photos & pictures | Samsung UK
Find out about the deep learning-based AI processes that Galaxy phone cameras use to take high quality photos of the moon.
www.samsung.com
December 24, 2025 at 8:04 AM