anfractuosity

4 ms·

1.
by anfractuosity 3mo ago
Kind of related but using a different approach - https://www.youtube.com/watch?v=qtQ4rK66vlE ('This microscope uses touch') Also see https://hira.hope.ac.uk/id/eprint/2869/1/Pap
2.
by anfractuosity 3mo ago
Wouldn't line pairs / mm count as resolution.
3.
by anfractuosity 3mo ago
Isn't the depth of field primarily determined by the aperture of the lens and focal length.
4.
by anfractuosity 3mo ago
Really like Darktable, was playing printing a few photos at weekend from it, on my large-ish dye-sub printer - DNP DS80, works very nicely under Linux with cups (once I figured out how to make it print in colour). I switched to it from Ligh
5.
by anfractuosity 3mo ago
Doesn't arch already package it ( https://archlinux.org/packages/extra/x86_64/darktable/ ), I was using darktable on arch, but recently switched distros.
6.
by anfractuosity 6mo ago
There's a process some brewers use to treat water, to make it similar to a well in England, called burtonisation, using various salts
7.
Y-Zipper: 3D Printing Flexible-Rigid Transitions in One Click [video](youtube.com)
2 points by anfractuosity 6mo ago|0 comments
8.
by anfractuosity 6mo ago
Maybe astronauts on the ISS could try a similar experiment ;)
9.
by anfractuosity 6mo ago
Yeah, it's very cool, I found a rather interesting document on the chemistry to create a lippmann plate 'The True Colour of Photography' by 'Hans I. Bjelkhagen, Darran P.M. Green' seems their exposure times where in
10.
by anfractuosity 6mo ago
Sounds very interesting. Just started looking at the paper, which seems very complex to me "An alternative approach utilizes light absorption via localized surface plasmon resonances (LSPRs) of noble metal nanoparticles (NPs)". I
11.
by anfractuosity 7mo ago
That sounds really cool, how did they do the DNA testing out of interest?
12.
The nifty Japanese printing gadget uniting artists worldwide(theguardian.com)
4 points by anfractuosity 7mo ago|0 comments
13.
by anfractuosity 8mo ago
https://dberard.com/home-built-stm/ shows individual atoms.
14.
by anfractuosity 8mo ago
Maybe it was a Czech Mlíko pour ;) The faucets they use are pretty cool ( https://www.lukrfaucets.com/en/ )
15.
by anfractuosity 8mo ago
I have a magneto optic sensor that can visualise the field lines of a magstripe when using a polarising microscope - https://www.youtube.com/watch?v=c8nM4Z-hkTw I'm going to try a VHS under it, to see what I get.
16.
by anfractuosity 8mo ago
Based on a repo I found that twiddled the memory bus, I transmitted audio from a wav file via Pulse Density Modulation - https://github.com/anfractuosity/musicplayer
17.
by anfractuosity 8mo ago
If you PWM a signal, I presume you could add a filter to convert to amplitude changes?
18.
by anfractuosity 9mo ago
I skimmed through a couple of youtube videos, would I be right in thinking the tracing is done always manually here. Would be really neat if it could trace automagically too, possibly with sanded PCBs?
19.
by anfractuosity 9mo ago
Wow that printer is fascinating! Good point re. film, related to that see - https://archiveprogram.github.com/arctic-vault/
20.
by anfractuosity 10mo ago
Thanks! I came across http://www.pocketwatchrepair.com/how-to/jewels.php recently, hadn't realised the jewels weren't for aesthetics.
21.
by anfractuosity 10mo ago
You can apparently lock shopping trolleys using the same kind of principle - https://www.tmplab.org/2008/06/18/consumer-b-gone/ And https://www.youtube.com/watch?v=LmSyb0kBvGE
22.
by anfractuosity 10mo ago
Another 3D printed microscope https://github.com/TadPath/PUMA looks very interesting too.
23.
by anfractuosity 10mo ago
Thought that podcast was very interesting. I bought the book - 'textbook of sake brewing' a while ago. I've brewed beer before, but rather fancy trying making sake.
24.
by anfractuosity 10mo ago
I remember speaking to ALPA at a photo show, from what I recall the cameras also have very fine metal shims to align the camera to a digital back. Do they manufacture the optics themselves too? Not sure I realised that. Edit: just found thi
25.
by anfractuosity 10mo ago
Great idea! https://www.mirror.co.uk/money/personal-finance/finance-expe... shows how little pubs make per pint, very sad. If anyone's curious about cask beer https://www.youtube.com/watch?v=_
26.
by anfractuosity 10mo ago
Sounds fascinating, do you have any documentation on how you modify the yeast?
27.
by anfractuosity 10mo ago
Trying to visualise magnetic fields of a floppy disk. So far I can see magnetic fields on a magstripe https://www.youtube.com/watch?v=c8nM4Z-hkTw with two polarisers (one of which I rotate in the video, which is contained i
28.
by anfractuosity 10mo ago
Remember seeing this a little while ago too - https://www.fastcompany.com/91089861/this-genius-vampire-dro... https://www.youtube.com/watch?v=C-uekD6VTIQ has a video of their drone on a power line.
29.
by anfractuosity 10mo ago
With OpenSCAD I've made a 3D printed rotatable polariser for my microscope - https://github.com/anfractuosity/polarisers I used these two polarisers in my microscope and a magneto-optical sensor (which exploits th
30.
by anfractuosity 11mo ago
It's super useful, been using with my 3D printer to print things such as an adapter to connect a Canon EF lens to night vision tube and parts to link motorised linear stages together. Currently I'm playing with a gear library whic

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