physics

Hi there, For now I am certified as an advanced diver. But I would like to improve my skills and become a divemaster. The only problem is that I am not that strong and not that big.I always struggle to put on all my gear and walk with it for 40 meters to the dive spot. It really hurt and cost...

I am in the planning phase for diving with an active source, specifically a series of underwater robots that track each other. I would like to be in the water with them to observe their actions but I want to mitigate as much risk as possible. The robots’ sonar transmits in the 17-34 kHz range...

I made a video about the physics of fish swimming - for small fish, viscosity dominates the movement of fish through water, for large fish, it's inertia. I discuss Ed Purcell's classic paper "Life at low Reynolds numbers". I hope this is educational. Enjoy!