The Hackuarium & Octanis team behind https://hackuarium.github.io/simple-spectro/ , represented by Océane & Luc Patiny, will explain how they designed, prototyped and now produce a simple, precise, cheap spectrophotometer.
From scratch to cool, Do-It-Together style.
You do not need a piece of equipment costing several thousands CHF/euros/dollars to teach and learn this great biology and chemistry technique, #spectrophotometry.

Any freelancer, entrepreneur, student, project leader, teacher, curious mind can learn a thing or two thanks to this approach. If your last biology experience was around age 14, even better: come to see how different and easy the Hackuarium approach to it and other sciences or arts might be ;)

** Please, RSVP for us to be able to prepare the room for you accordingly! **

"The goal [was] to create a simple spectrophotometer that measures the absorbance of a sample at 3 different light colors (red, green, blue), is autonomous (on battery) and displays the result on a LCD screen.
The initial idea was that you could teach spectrophotometry without having to buy an expensive instrument, since you can find experiments that does not require a specific light wavelength. This includes optical density for bacteria culture, determination of a pigments concentration in a solution, determination of the kinetic of a reaction and many others."

#Smurf candy and its typical blue #color might have been involved at some point, but no smurfette was harmed during those experiments.

You might have heard we are #moving.
That's right, we emptied our lab at the 2nd floor of Les Ateliers de Renens, Closel 5, CH-1020 Renens (VD), over the past month. We are still exploring new opportunities for a space, after 4 years in that building where our association, lab, and most importantly, community, were born.
This is then officially our first nomadic #OpenHackuarium (number 227, that's a lot of Wednesdays), kindly hosted by our now ex-neighbors at the 3rd floor, MassChallenge Switzerland. We voted during our last General Assembly to try and make them a regular contribution to our now past first ecosystem.

tl;dr So long and thanks for all the fish, we'll keep sharing!