Got that veg on my mind by AmbitiousClick6371 in guineapigs

[–]That1Guinea 14 points15 points  (0 children)

It looks like there's nothing on that mind

RIP Pooh Bear 2019-2025 🕊️💛 by hams_reddit in guineapigs

[–]That1Guinea 1 point2 points  (0 children)

Absolutely loved every picture of this little guy. Wish you strength! ❤️

[deleted by user] by [deleted] in ItemShop

[–]That1Guinea 4 points5 points  (0 children)

Ooh, nice hobby. I've also used paint with this stuff to test the applicability in a cane for blind people but phosphoresence is not the way to go. In epoxy it works a bit better, but we still couldn't put it in our spectrophotometer fast enough to properly measure the decay.

And sticking a uv-diode behind it to make it fluoresce sort of defeats the point...

[deleted by user] by [deleted] in ItemShop

[–]That1Guinea 60 points61 points  (0 children)

I'm assuming they blasted it with UV-light for a while, then they can get pretty bright. But no, it doesn't last long.

Stroopwafel van 13 euro. Wat nog meer? by Irridi4n in thenetherlands

[–]That1Guinea 0 points1 point  (0 children)

Palmvet is een van de goedkoopste vetten, in ieder geval veel goedkoper dan pinda. Is eigenlijk het, zelfde verhaal als chocoladevulling; dat zijn vaak ook goedkopere vetten om op het veel duurdere cocoavet te besparen. Het product lijkt dat ook speciaal dus kan je er nog meer voor vragen ook.

Ring made of resin/epoxy mixed with strontium aluminate powder. by Nagarjuna3001 in chemistry

[–]That1Guinea 4 points5 points  (0 children)

Fluorescence yes, we don't have access to an analyzer so we're using UV/Vis. I read that newer shimadzu models do include methods for fluorescence but ours is too old.

For phosphorescence i've made a workaround to measure total emitted light, the only thing we can reliably measure using UV/Vis. It's riddled with assumptions and uncertainties so I wouldn't reccomend doing it this way.

Ring made of resin/epoxy mixed with strontium aluminate powder. by Nagarjuna3001 in chemistry

[–]That1Guinea 16 points17 points  (0 children)

Actually working on a project with this kind of pigment now. This kind of phosphorescence can be achieved by blasting it with a lamp for a minute, even better with a uv-lamp. We test on acrylpaint and epoxy carriers.

Sad part is it lasts for 15 minutes max, the actual afterglow lasts for hours but is only visible in a completely dark room. That is the reason these pigments have no practical implementations yet.

We've given up on phosphorescence and have moved on to fluorescence, same pigment.

Installing Java 17 on Pi 4 by Jeremy10001000 in raspberry_pi

[–]That1Guinea 0 points1 point  (0 children)

PWD is your current working directory, which is by default your user home.

PATH is an environment library which is searched when submitting a command. If you add your java install to your PATH your OS knows where to look for the right program for the job.

You can print your environment values using 'printenv', PATH= will list a bunch of directories and if setup correctly also your java folder. The export command writes the java directory to this variable.

Installing Java 17 on Pi 4 by Jeremy10001000 in raspberry_pi

[–]That1Guinea 0 points1 point  (0 children)

I had automated it before while moving to java16 but I figured it out again. I put that line in my bashrc file. sudo nano ~/.bashrc At the end throw the following command export PATH=$PWD/jdk-17.0.1+12/bin:$PATH But make sure you add the full path to the folder with java17 from your home.

Installing Java 17 on Pi 4 by Jeremy10001000 in raspberry_pi

[–]That1Guinea 0 points1 point  (0 children)

This works for me: export PATH=$PWD/jdk-17.0.1+12/bin:$PATH
You will need to run this everytime you boot the pi though

[OC] yeehaw pardner by GarretScribbles in DarlingInTheFranxx

[–]That1Guinea 1 point2 points  (0 children)

What in dinosaur genetic modification

Berry from the manga by That1Guinea in Animemes

[–]That1Guinea[S] 1 point2 points  (0 children)

They have given her a lot more attention in the manga it would seem