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I always enjoy seeing one of my videos on HN! Let me know if you have questions.
Not strictly related to this video - sorry about that - but I have some ideas of how to improve the system you used to record arc welding in high quality.
Do you still have the hardware? Does revisiting the project and using some signal processing to try and extract color images sound like fun? I would be excited to collaborate on this if you had energy for it!
You should definitely contact Kron Tech (makers of the system -- let me know if you want an introduction). I have some interesting image processing videos coming up -- nothing to do with color reconstruction, but that also sounds good. My project pipeline is pretty full, but I will let you know when I am adding new ideas.
By pierrekin 2025-06-2015:34 Thank you for your kind offer to introduce.
So what happened with the startup, Niron? [1] They've been trying to commercialize this for years.
By londons_explore 2025-06-177:513 reply The fact they don't have a 'buy one of our magnets now, $10' button tells me that the tech doesn't actually work.
The only report of a bulk Fe16N2 magnet I remember reading about used a 2 GPa (300 kpsi) diamond anvil to compact the powder. I can see why that might be economically impractical right now.
Also there was a bombshell paper that came out claiming synthesis of bulk L10-FeNi which was later retracted [1] and may have put a temporary damper on interest in Fe16N2. It remains unclear which material will be available first.
1: https://advanced.onlinelibrary.wiley.com/doi/full/10.1002/ad...
By londons_explore 2025-06-1810:46 2GPa wouldn't be hard to achieve in a production setting, as long as it's only needed for a second or two. You simply have a diamond anvil in your factory.
Or alternatively, you use explosives or shock waves to very briefly get the pressure needed.
The last thread of informed comments here on this:
By pfdietz 2025-06-1715:20 Yes, that deflated my optimism.
By ralphonzathew 2025-06-1713:51 Iron nitride is much more useful as a thin film coating. Bulk magnet tech just isn't there.
By showmexyz 2025-06-1714:16 His videos/experiments are really really good. Some of other good videos-
https://www.youtube.com/watch?v=UIqhpxul_og
