A simple way to make a laser microscope at home using a simple laser pointer, a syringe full of filthy water, two glasses, and a blank wall.
Love this video just cus it has zelda song of storms in it :D
I'm unsure about this… I see those "small single cells" in every experiment with lasers when dust is involved. I think is dispertion.
i did the same s*** at highschool!
I think what he's seeing are diffraction rings formed by small dust particles suspended in the liquid. Note the uniform motion of the "single cells"; if they were living creatures, they would be moving randomly.
Best way to test this: try this with sterilized water. Sterilization will kill most microorganisms, but impurities will still exist. I think you'll see similar patterns. Better yet, try it with 70-90% alcohol.
Tried this out with a standard school laser pointer (red light & green light) and both of them were blocked by the water droplet. Can you advise what power / size of laser pointer you used in your experiment.