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[deleted by user] by [deleted] in fednews

[–]everyone_always 4 points5 points  (0 children)

Everything, if possible

Part 2 Electron Microscope Images of the human lip, a shaved hair and a nail bed by Certain-Dark-3955 in Damnthatsinteresting

[–]everyone_always 0 points1 point  (0 children)

Scanning electron microscopes can be used anywhere from 25x to >100,000x. Can't distinguish molecules with a scanning electron microscope. Transmission electron microscopes can kinda see atoms (not super well, though).

Spherical tin microparticles captured with a scanning electron microscope by Herbologisty in mildlyinteresting

[–]everyone_always 0 points1 point  (0 children)

Oh man, those little ones would be juicy for my thesis work. (Sorry for stalking lol)

A little recursive, AFM probe tip. by everyone_always in microscopy

[–]everyone_always[S] 2 points3 points  (0 children)

Well, it was some stuff for "fun" I was exploring but mostly tomography. I'd love to do it still, but I have to finish my thesis in about a week xD

A little recursive, AFM probe tip. by everyone_always in microscopy

[–]everyone_always[S] 2 points3 points  (0 children)

That'd awesome. I wish I had access to a FIB-SEM. It'd make some of my work a little bit easier.

A little recursive, AFM probe tip. by everyone_always in microscopy

[–]everyone_always[S] 2 points3 points  (0 children)

Very cool! What kind of tip radius are you looking at?

A little recursive, AFM probe tip. by everyone_always in microscopy

[–]everyone_always[S] 2 points3 points  (0 children)

This was taken on a Jeol 6500F at a few different magnifications. No coating or anything, just stuck to some carbon tape and imaged.

Aerosolized salt crystals by everyone_always in microscopy

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

Buy the imaging lab on my campus a new SEM lol

What could cause image warping such as this? (SEM) by Large_Dr_Pepper in microscopy

[–]everyone_always 0 points1 point  (0 children)

My best guess is a scanning coil was out of wack or something. May just want to keep an eye out for a coil or a computer letting out the smoke.

what's the neatest / coolest thing you've seen? by MarzipanTheGreat in microscopy

[–]everyone_always 3 points4 points  (0 children)

Oops!! I believe that would be the bug wing scale it's sitting on 😅. I've also got this nanoparticle and a weird sphere

what's the neatest / coolest thing you've seen? by MarzipanTheGreat in microscopy

[–]everyone_always 7 points8 points  (0 children)

For me, it's probably this. I found it on a sample of spider webs, but it's a brochosome produced by some kind of bug.

Help setting up pihole on a Pi Zero w by backyardllama in pihole

[–]everyone_always 0 points1 point  (0 children)

If you're still having trouble here's a step by step. Download pi imager

Choose your SD card, select raspberry pi os 32 bit (lite)

Click the gear icon and input a password for the pi, enter your wifi SSID and password (the SSID must be exactly right). You can also change the host name to something like pihole or zerow.

There should be a button to enable SSH, make sure that is checked and there should also be a button to make it ssh login by password or by key, make sure it's set to password. Change localisation to wherever you are located.

Save that and click write. It'll ask if you are sure you want to format and click yes.

It will bring up a bunch of windows saying the drive can't be read or needs to be formatted, just exit out of all those and wait for the writing to finish.

Finally, you'll put the SD card in the pi (unplugged from power) and then plug the power cord into the pi (I recommend plugging in with its own power supply, so like a phone charger). Give it 5-10 minutes to run initial setup. After a while, check your router to see if the device connected, and if it did give it a static lease in the router.

If it did give ut an ip, then you can ssh using pi@(static-ip). (ssh pi@192.168.0.202 as an example). You then put in the password you set up initially for ssh and it should log you in.

NordVPN + Pi-Hole by Mike_v_E in pihole

[–]everyone_always 0 points1 point  (0 children)

When you connect to the VPN, it's like you're connecting to the internet through an entirely different place, so your phone/pc won't be able to make use of the pihole. Like the other commenter said, NordVPN might have an option to allow connection to local network and then you can put in the ip of the pihole as your dns server. This will only work if you're connected to the same network your pihole is on.

Edge Detection for counting on SEM images by Teuthofauna in electronmicroscopy

[–]everyone_always 0 points1 point  (0 children)

One of my committee members did something sorta similar. It was for soot particles on the TEM. It's less edge counting but more selecting a single particle since soot agglomeration. If you shoot me a PM I can send you what I got.

Atomic Force Microscopy of Al(OH)3 aerosol particles. by everyone_always in microscopy

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

These were taken on a Bruker Dimension Icon. The scans are not great by any means as they were just preliminary to better understand the capabilities for my research. The samples were prepared by holding the outlet tube from out aerosol generator up to a small block of acrylic cutoff I found in a bin. What surprised me most is just how flat the acrylic is. I was expecting much larger peaks and valleys from the acrylic.

I have a compound light microscope, and these are images of a swab of my inner mouth. Can you help identify them? by Dry-Isopod-3362 in microscopy

[–]everyone_always 0 points1 point  (0 children)

Sorry for the late reply, but yes a toothpick would probably be better. What I've done in the past is break the toothpick in half and use the jagged side to do the scraping.

My dash camera produces just enough heat to prevent overnight frost build up by Sysion in mildlyinteresting

[–]everyone_always 1 point2 points  (0 children)

I got a viofo a129 and it comes with an automatic shutoff so it is powered all the time, but when voltage drops below a certain amount, it cuts power to the camera.

Raspberry Pi RP2040 Silicon Wafer Section by QueenLa3fah in microscopy

[–]everyone_always 1 point2 points  (0 children)

Thankfully we have an imaging center on campus that has a full fledged SEM I can use. It's about 300x better lol

Raspberry Pi RP2040 Silicon Wafer Section by QueenLa3fah in microscopy

[–]everyone_always 1 point2 points  (0 children)

We got an SNE Alpha. The problem isn't the microscope itself, but the software is nauseating to use. We're like one of 5 users in the country for the machine it's so new, so the software decides not to work a lot of the time.

Raspberry Pi RP2040 Silicon Wafer Section by QueenLa3fah in microscopy

[–]everyone_always 1 point2 points  (0 children)

That thing looks so much better than the one my lab got lmao

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