Dan

24 hours in advance, we have 12 signed up for 2 courts and the other group with 2 courts has no one so far. So, it looks promising that we might be able to use 3 courts. Hope no one signs out last minute or someone doesn't not sign up thinking we don't have room.

Lynne responded in

I’m going to try and get there but it will be around 11:00 if that’s ok…

Shannon responded in

Hey Lynn, where are you?

Geoff

I am signing in …we will see how it goes….i may just come for a stretch/workout

Geoff

I don’t want to make seven….i would sign in as an eighth for the challenge court

Nick

I am happy to play some singles with anyone if we end up with 7.

Susan

I'll join this group IF I don't make the cut in "top 10 Dupr" session at 4:30

Dan

I have given some thought to the physics of the new lift rule since it was introduced this year. Here are my thoughts, for what it is worth.

For a lift to occur, the paddle essentially needs to “catch” the ball. For this to occur with two solid objects, i.e. a pickleball and paddle, the paddle needs to be moving at the time of contact with essentially the same velocity, i.e. speed and direction, as the ball. (See video demo: https://www.youtube.com/watch?v=ACdZu2Gva64 ) If that is not the case, the ball will rebound off of the paddle. This is very similar to a collision between two billiard balls where one is moving at a different velocity than the other. They may move off in the same direction, but do not do so together at the same velocity. Physics refers to these as elastic collisions.

Since the vast, vast majority of pickleball shots involve the paddle moving in a direction and speed different than that of the ball, I believe lifts are a very rare occurrence. What might be perceived as a lift may really be a double (and legal) contact. I have tried to lift the ball without the paddle matching the ball’s velocity and been unsuccessful. If someone is able to do it, I would be very interested in seeing a demonstration.

Side note: The pitch of the sound made when a paddle hits the ball is related to the amount of time the ball and paddle were in contact. If you hear two rapid smacks, that was a double contact. Since a lift is prolonged contact, it should have a very different sound, likely no real audible sound at all.

Dan

Billy, the bottom line is if you hear a normal ball/paddle contact sound...or two, I don't believe there was a lift.

Billy

I could complicate things by saying that I don't have my hearing aids in when I play.
I think I'll be able to use that to to my advantage. Just sayin'.