GMU:Board Games for Humans and Nonhumans/Annika Wappelhorst: Difference between revisions
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3. Spirulina in sterilized and filtered pond water (sterilized by boiling it; filtered through a coffee filter), | 3. Spirulina in sterilized and filtered pond water (sterilized by boiling it; filtered through a coffee filter), | ||
4. Spirulina added to distilled water bought in a drug store. | 4. Spirulina added to distilled water bought in a drug store. | ||
The tubes were kept hanging from a shelf close to a window where some sun’s rays could enter on warm days. The “minerals” which I had added to each one of the four tubes were: sodium chloride (NaCl = normal cooking salt), some baking soda/sodium bicarbonate/natron and some potassium (in German: Kaliumdihydrogenphosphat).</nowiki> | |||
After one week in the tubes during which I hadn’t changed anything except for shaking the tubes every (other) day and opening them every two days, I went to the bio-lab to observe the different liquids containing spirulina under the microscope. | After one week in the tubes during which I hadn’t changed anything except for shaking the tubes every (other) day and opening them every two days, I went to the bio-lab to observe the different liquids containing spirulina under the microscope. | ||