This is a monochrome speckle snapshot of boiling water in a transparent container. I used a small LED to illuminate.
— G V Pavan Kumar (@Pavan_KumarGV) June 27, 2023
Dynamic speckle imaging is an effective optical method to study spatio-temporal evolution of matter with many applications including biomedicine
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Category: home experiment
Leidenfrost effect in my kitchen
Jerel Walker of the fame of Halliday, Resnick ,Walker textbook fame has a superb article on this: https://www.reed.edu/physics/332/pdf/Leidenfrost.pdf
Wikipedia has a reasonable explanation: https://en.m.wikipedia.org/wiki/Leidenfrost_effect#:~:text=The%20Leidenfrost%20effect%20is%20a,the%20liquid%20from%20boiling%20rapidly.
63. Pattern formation in my kitchen
If you allow oil to diffuse through a patterned paper napkin on a plate, you can print that pattern on most of the dry plates in a kitchen ( steel plate in this case). In the image, the darker regions are oil soaked, and the ligher circular regions are devoid of oil. Essentially, the patterns are evident due to contrast in refractive index
VISMAYA - History & Philosophy of Physics 