If you can sorta "control", You can see both. I can switch from What im seeing like: 2D to 3D but then 2D again And yes. I can control it. What bout ya'//?
If you had grooves in the plate it would probably work a lot better , obviously. But it would be really cool to see that experiment where they were running in their own little channels.
I think that with a cycloid profile the polygon could keep its shape getting smaller and smaller because of the friction. To keep the size unchanged you'd need no friction and a perfect semisphere as a plate, that's what my simulation represents
it's going in and out because you dropped them at those particular time delays. yes the plate is imperfect but that would disrupt the recurring "breathing" if it were that impactful. It's your timing that creates the breathing. It's just offset sign waves~
The original simulation uses constant velocity (or was sinusoidal?). Anyway the rolling up/down the plates edge causes it decelerate/accelerate with near constant velocity in thr middle section (slightly decelerating due to friction). I wonder if you could design a plate with with the correct slopes to make it a circle?
Spot on. Yes, the plate’s profile creates a different motion. Simulating the motion of this is beyond my programming skills but I’ve got a few people making one. I’m hoping they will find they can reproduce the “breathing”
@@ScienceMagicShows I'm not talking about the edges I know you need those so the balls won't fall off. I'm talking about the part that's supposed to be completely flat it affects the path of the balls. But this is a great experiment though. I like it
@@DrBunhead Thanks Tom. It was definitely a fun journey from thinking “could this actually work in the real world?” to producing the first rotating ‘circle’ with marbles. The more videos I make, the more I just film things that fascinate me in the hope that others will enjoy too.
I think it’s the transition from flat in the centre of the plate to angled up on the edge. It’s not a smooth change and that can cause a deflection. Not yet found a plate/bowl that is continuously curved.
@@alexprach yeah. That’s how all the animated simulations do it. I really wanted to get it working with something everyday. (Admittedly arduino’s and servo motors aren’t!)
