sadspinner
Member
Re: Wrist Spin Bowling
Woolmer has some complicated physics including but not only the magnus effect. I had read it and felt uneasy that part of it seemed horribly wrong.
My understanding is that oversoin with topspin gives drift with the seam acting as a rudder and something that helps create differences in presssure between the two sides. Funnily enough Woolmer says that a big leg spinner ie complete side spin does not give drift(I am not sure about this though, as I saw a delivery by warne to tendulkar that drifted a lot before spinning).
With backspin eg the flipper or at medium pace with shine on one side you should get SWING not drift. The same priciple of the arm ball with the offspinner that I think is mainly an outswinger. That is my understanding
Woolmer has some complicated physics including but not only the magnus effect. I had read it and felt uneasy that part of it seemed horribly wrong.
My understanding is that oversoin with topspin gives drift with the seam acting as a rudder and something that helps create differences in presssure between the two sides. Funnily enough Woolmer says that a big leg spinner ie complete side spin does not give drift(I am not sure about this though, as I saw a delivery by warne to tendulkar that drifted a lot before spinning).
With backspin eg the flipper or at medium pace with shine on one side you should get SWING not drift. The same priciple of the arm ball with the offspinner that I think is mainly an outswinger. That is my understanding