GMU:Board Games for Humans and Nonhumans/Annika Wappelhorst: Difference between revisions
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My '''“board game”''' is supposed to be a competition between living spirulina, an interaction of spirulina with different environments. I will be focusing on the growth of spirulina and which type of water favors it. | My '''“board game”''' is supposed to be a competition between living spirulina, an interaction of spirulina with different environments. I will be focusing on the growth of spirulina and which type of water favors it. | ||
Therefore, I took a tube of spirulina (the exact species is unknown to me) bacteria in a liquid, divided the content into four parts and inserted each part into a tube with minerals and different types of water. The four samples respectively consisted of: | Therefore, I took a tube of spirulina (the exact species is unknown to me) bacteria in a liquid, divided the content into four parts and inserted each part into a tube with minerals and different types of water. The four samples respectively consisted of: | ||
1. Spirulina in its normal medium in which it had been delivered/bought, | <nowiki>1. Spirulina in its normal medium in which it had been delivered/bought, | ||
2. Spirulina in its original liquid, added to normal pond water from a side branch of the Ilm river, | 2. Spirulina in its original liquid, added to normal pond water from a side branch of the Ilm river, | ||
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). | 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. | ||