24.
Posterus Textilus
The magnetic stirrer
The magnetic stirrer is a relatively easy design. The interesting thing about it is its simplicity. Just by placing two magnets on a ventilator, placing a magnetic rod in a glass flask and adding a potentiometer to control the velocity, you get a magnetic stirrer. A magnetic stirrer is used if a liquid needs to be constantly stirred or aerated. The prices for professional magnetic stirrers can vary from 100 up too 1000 euro. The costs of making one your self is around 25 euro. (http://biohackacademy.github.io/ biofactory/class/6-magnetic-stirrer/) After having gained some basic knowledge on how to work in a lab I could start exploring what I could do with microorganisms to innovate the field of textile and wearables.