Poor man's centrifuge!!

I tried to create a kind of centrifuge using a thread and dropper to separate diatoms from pond water sample 😅😅 Working on perfecting the method.I would say results are inconclusive so far !!

 image of results are inconclusive so far image of results are inconclusive so far
 image of results are inconclusive so far image of results are inconclusive so far
 image of results are inconclusive so far image of results are inconclusive so far
 image of results are inconclusive so far image of results are inconclusive so far