Live! (recorded) 3D Explanation of Laminar Express: Post 33

[If you are new to our measurements, you may take a minute to read here about boundary layer separation and wakes]

A reader asked some very good questions about my claims, and I’ve attempted to answer these using a ball with a rod shoved through it. Comments, criticisms are welcome. Note that in the first several videos, the ball is coming toward you.

At 2:55 in the 5th video, I return to the orientation I had at 2:25. I’m 180 off, but the other side of the ball has the same effect.

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5 thoughts on “Live! (recorded) 3D Explanation of Laminar Express: Post 33

  1. Since softball pitching is underhand the ball has topspin not backspin. Does this make a difference in the seam effects you are talking about in terms of horizontal break (backspin vs topspin)? A softball is larger but it is also heavier than a baseball, do you think the differences would magnify or diminish the effects?

    1. I don’t think this effect depends on RPM or direction of spin at all. I don’t know much about softball or softballs, but the ball is bigger, so the force is bigger, but the ball is heavier, so.. no idea.

    1. I don’t think this effect depends on RPM or direction of spin at all. I don’t know much about softball or softballs, but the ball is bigger, so the force is bigger, but the ball is heavier, so.. no idea.

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