This photo is btw my start into building high-throughput instruments in 2013. This is (supposed to be) a print of a metal oxide from an ink-jet print head (all DIY) with changing different print parameters. Long journey since then!

I just love these small experiments that directly loop hardware in ML workflows. This is to predict pH from mixing unknown (to the algorithm) liquids via a pH-indicator color measurement.
There is a lot of literature for open source syringe pumps but nothing yet on valves … #chemsky

Let’s see if this setup flies with safety… only coin cells inside

I really like the interior design of Sendlinger Tor Station.

New lens

Never thought of myself as someone who would enjoy wildlife photography … but urban wildlife is another thing! Photo taken in Kyoto and maybe edited a bit much (not the greatest weather and subideal whitebalance).

Though experiment: if I illuminate this color standard with monochromatic light of different wavelengths and take photos then shouldn’t I be able to calibrate a more accurate reflection spectral response for an optical system 🤔

Got a new (bi)potentiostat for our scannin electrochemical microscope. It even has upgrading capability. I have simple code to interact with it through python here: github.com/helgestein/m...
Also the different flavors of #HELAO feature more advanced interactions: github.com/fuzhanrahman...