Recent content by 333cory333

After discussion with an intimate physics professor, we reached contradicting results: like in the case of golf balls, the rough surface can make air pockets, or when the air meets a certain condition (some sort of Reynolds number boundaries) the drag coefficient is bigger for rougher spheres...

I still haven't found out a certain answer, but I'm surely progressing! Thanks for your consideration :)

Hello, everyone! I'm conducting an experiment in a lab and while setting parameters, this question came to my mind. Are ping-pong balls hydrophobic? (They are made out of cellulose) And if sesame oil or grease is coated on the surface, do they become hydrophobic? Thanks, as always :approve: