A pool of life!

I noticed a green layer (presumably algae) growing on the terracotta pots on my terrace. All the pots have greenish growth on them, but they all look very different. One pot had a layer which was considerably thicker, and easy to scrape off. I soaked bits of it in regular tap water and let it…

Swimming critters in a pond near my house (Bangalore, India)

To all the veteran foldscopers this may sound like nothing, but I am sure excited to present this video to you: https://youtu.be/6UOBy8ztLJQ It was hard work. My lens was dirty, and the slides were scratched up, despite my best efforts. Then thanks to Laksiyer and EzekielJakub, who suggested phase contrast, I tilted the foldscope. Lo and…