New video: Cross sectioning insects in an electron microscope with a femtosecond laser youtu.be/NwhVJ7cv9B4

Cross sectioning insects in an electron microscope with a femtosecond laser

YouTube video by Applied Science

youtu.be

New video: Atomic Force Microscope high-speed video, selective stainless steel etching, bacteria, and more www.youtube.com/watch?v=DyIQ...

Atomic Force Microscope high-speed video, selective stainless steel etching, bacteria, and more

YouTube video by Applied Science

youtube.com

My first Claude Code project! github.com/benkrasnow/O... Single-page web app with COM port IO. I really enjoyed using Claude, and this app is something that I will definitely use in the near future.

I had a single-stage oxygen regulator fail "open", sending tank pressure to the output. The seal looked like brown candle wax (crumbles on right side of photo). I didn't know they could fail this way just from age and normal use.

I recently learned the USGS has free aerial LiDAR data for many areas. Draw a box, then click the green button on the right side and select Eptium viewer. apps.nationalmap.gov/lidar-explor...

Also, I have quite a few videos that are soon to be released, but the perfectionist in me always causes me to wait, trying to add things, or improve things, thinking I can always make the video a little more interesting.

I'm looking forward to being a featured creator again at Open Sauce 2026. It's a really fun event that celebrates creativity and technical ability. July 17-19 at the San Mateo Event Center. Check it out! opensauce.com

It's official! #PicoIDE, the open source IDE/ATAPI drive emulator I've been working on for the better part of this year, will be launching at Crowd Supply! Go there to sign up for updates and to be notified when the campaign is live: www.crowdsupply.com/polpotronics...

PicoIDE

An open source IDE/ATAPI drive emulator for vintage computers

crowdsupply.com

New video: Acoustic Radiometer spins in 130dB sound, clockwise and counter-clockwise depending on sound pattern www.youtube.com/watch?v=lAeJ...

Acoustic Radiometer spins in 130dB sound, clockwise and counter-clockwise depending on sound pattern

YouTube video by Applied Science

youtube.com

New Video: Optical diffraction patterns and almost-holograms made with a MOPA laser engraving machine www.youtube.com/watch?v=RsGH...

Optical diffraction patterns and almost-holograms made with a MOPA laser engraving machine

YouTube video by Applied Science

youtube.com

New Video: X-ray backscatter with compressed sensing algorithm www.youtube.com/watch?v=EuVg...

X-ray backscatter with compressed sensing algorithm

YouTube video by Applied Science

youtube.com

Supercritical CO2 chamber on a PCR machine in the heating phase.

Supercritical CO2 chamber on a PCR machine in the cooling phase.

New video: Iron nitride permanent magnets made with DIY ball mill and tested with DIY magnetometer www.youtube.com/watch?v=M6XI...

Iron nitride permanent magnets made with DIY ball mill and tested with DIY magnetometer

YouTube video by Applied Science

youtube.com

New video! Welding visualization system uses intense pulsed lighting to outshine electric arc, laser cutter www.youtube.com/watch?v=wSUx... www.krontech.ca/product/heli...

Welding visualization system uses intense pulsed lighting to outshine electric arc, laser cutter

YouTube video by Applied Science

youtube.com

100MBq strip of Nickel-63 behind two different phosphor screens. Average electron energy from the nickel is 17KeV.

New video! Dramatically improve microscope resolution with an LED array and Fourier Ptychography youtu.be/9KJLWwbs_cQ

Dramatically improve microscope resolution with an LED array and Fourier Ptychography

YouTube video by Applied Science

youtu.be

I'm really looking forward to another great Open Sauce this year! Also, a New Applied Science video will be released in the final week of each month this year. opensauce.com

New Video: f/0.38 camera lens made with oil immersion microscope objective www.youtube.com/watch?v=DQv0...

f/0.38 camera lens made with oil immersion microscope objective

YouTube video by Applied Science

youtube.com

New Video: Mutarotation: a sugar that spontaneously changes from sweet to bitter www.youtube.com/watch?v=kiuX...

Mutarotation: a sugar that spontaneously changes from sweet to bitter

YouTube video by Applied Science

youtube.com

Has anyone found a good replacement for the Ikea Jansjo task lights? They are no longer available and I have several of them that flicker randomly.