@stdlogicvector@chaos.social
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stdlogicvector

@stdlogicvector@chaos.social

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stdlogicvector, to Eurovision
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Hey Vsauce, Michael here!

gigabecquerel, to random
@gigabecquerel@chaos.social avatar

⚡😍

stdlogicvector,
@stdlogicvector@chaos.social avatar

@gigabecquerel

ktemkin, to random
@ktemkin@chaos.social avatar

you should learn toki pona. not for the ability to communicate for other people; nor for the ability for it to make you simplify your thoughts into their bare pieces as you speak.

no, you should learn toki pona because the broadness of linguistic elements allows you to make the truly worst puns.

stdlogicvector,
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@ktemkin @gigabecquerel @Matrix11 👀

stdlogicvector, to random
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Particle physicist PCB stackup

(Inspired by @gigabecquerel )

gigabecquerel, to random
@gigabecquerel@chaos.social avatar

Lathe time!

You're never goimg to guess what this is. And if you do, how do you enjoy your work in nuclear chemistry?
Originally wanted to make two at once, but the internal threading bar broke, so no more work for today :|

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stdlogicvector,
@stdlogicvector@chaos.social avatar

@gigabecquerel Just tell us already! We mere mortals want to know, too!

stdlogicvector, to random
@stdlogicvector@chaos.social avatar

The scanning electron microscope is working now! But to capture images we need a DSUB-25 plug/plug cable!

If you are at or near and have one to lend, please let me know!

stdlogicvector, to random
@stdlogicvector@chaos.social avatar

We need two 74HC574 and one 74HC00 to repair a Scanning Electron Microscope! If you happen to have those chips in DIP package, please let me know!

stdlogicvector, to random
@stdlogicvector@chaos.social avatar

Is your cat secretly phase shifting?

stdlogicvector, to random
@stdlogicvector@chaos.social avatar

When @gigabecquerel took the images of the superconducting wire I snuck some of my samples into the SEM chamber.

This electrochemically grown copper on a wire I used to hold objects while plating them. Different current densities seem to result in different structures.

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stdlogicvector,
@stdlogicvector@chaos.social avatar

@Cheesylorry donated a Bruker AFM tip. To get full circle, we just need to get a SEM into the AFM...

(These pictures expertly taken by @gigabecquerel )

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stdlogicvector,
@stdlogicvector@chaos.social avatar

And this ultrafine mesh with a hole size of only 40 microns was found in an optical gas sensor salvaged from the scrapyard. How do you weave something so perfectly at this scale?

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stdlogicvector,
@stdlogicvector@chaos.social avatar

Last one:

This wasn't a prepared sample but an accidental find in the epoxy puck used to fix the superconducting wire.

While grinding the puck flat an airbubble got sliced in half and formed this perfect little bowl.

stdlogicvector,
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@gigabecquerel

stdlogicvector,
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@gigabecquerel

stdlogicvector, to random
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stdlogicvector, to random
@stdlogicvector@chaos.social avatar

@gigabecquerel and I took some pretty sweet pictures of sugar crystals with the SEM at @FabLabMuc . We really need to motorize the rotary axis to get even better animations.

An animated GIF of SEM images of sugar crystals rotating approx. 45° back and forth.

stdlogicvector, to random
@stdlogicvector@chaos.social avatar

This is homemage erbium doped tellurite glass! It uses a process call upconversion to transform infrared light into visible light.

Still have to work on quenching and tempering, but I am very happy that the physics works!

stdlogicvector, to random
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Making another tellurite upconversion glass! This should fluoresce green when excited with 804nm.

Can you guess the other elements from the oxide colors?

stdlogicvector,
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@azonenberg Unfortunately not correct! The white powder is tellurium oxide.

stdlogicvector,
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@azonenberg Yes! It's 77%mol tellurium oxide. The yellow stuff is for proper glass formation. Only the pink powder is dopant.

stdlogicvector,
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@azonenberg Very close! The yellow is Lead(II)-oxide and the pink is Erbium(III)-oxide.
The glass is still cooling down but I hope to test it this afternoon.

stdlogicvector, to random
@stdlogicvector@chaos.social avatar

If you are in Hannover you should come visit @gigabecquerel and my booth No. 97 at the Maker Faire! We have all kinds of radiation detectors and colorful DIY glasses!

gigabecquerel, to random
@gigabecquerel@chaos.social avatar

Went to the scrapyard today and found a weird fiberoptic switch thingy!
Looks like they're mechanically moving optics to aim at different fibers. All piezo activated, sitting on carbon fiber arms and held in a ceramic sled / enclosure thingy.
Must have been pretty expensive when new.

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stdlogicvector,
@stdlogicvector@chaos.social avatar

@gigabecquerel It's a LEONI eol 2x8 fibre optic switch!

stdlogicvector,
@stdlogicvector@chaos.social avatar

@gigabecquerel And it still works!

video/mp4

stdlogicvector,
@stdlogicvector@chaos.social avatar

The internal switching mechanism uses bistable levers actuated by piezos(?). The sixteen different combinations of prism positions multiplex the two inputs to the eight outputs.

video/mp4

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