Recent content by berkeman

Energy requirements to do what? Please define exactly and quantitatively what you want to do. Thanks.

Yep, I was thinking paddle tires too. Although I would probably be too chicken to try it on my CRF450 with rear paddle tire from my Pismo Beach trips...

Is your goal to maximize the rise vertically out of the water for a tethered vehicle, or to maximize the speed of a water vehicle?

Do you know what the tread pattern profile looks like on those vehicles mentioned that do this in competitions? Or do I need to find some images for you? :wink:

Why are the fin thingies facing backwards instead of forwards for the wheel rotation? That seems like the fins will just slip in the water instead of catching it and throwing it back to create thrust. Edit/Add -- And do you understand the difference in efficiency of a propeller versus a...

She mainly knows about the fire at home (at our old apartment years ago), and we laugh about it now. It involved a HAM radio project (we are both HAMs), where I made a fundamental mistake in building a large battery backup box. That was embarrassing...

I've only started one fire at work and one fire working on a persona project at home, so I think that's a pretty good record. :wink: Yes, low voltage is a nice luxury. Unfortunately I work with voltages up to 25kV pretty routinely, so that's why I wear a plastic watch and a silicone wedding...

https://www.amazon.com/Schylling-PBG-Paddle-Ball-Game/dp/B000MVE52Q?tag=pfamazon01-20

The link to the "LaTeX Guide" is below the Edit window on the left.

Good for you. :smile: It looks like each half-coil will cancel the other. Can you post a link to the actual schematic?

Welcome to PF; you've come to the right place. :smile:

The Mentors/Admins have no indication of that yet.

Welcome to PF! :smile:

The fire extinguisher is a nice touch. :smile: