Talk:Backspin

I think it would be useful to mention how to hit a shot with backspin. --62.49.171.1 (talk) 09:17, 29 June 2010 (UTC)

The illustration shows rotation opposite to that shown for Magnus effect. Get someone from physics to check this? —Preceding unsigned comment added by 71.192.37.81 (talk) 15:02, 22 May 2011 (UTC)

The criticism is correct: The Magnus effect shows the correct direction, whilst both this page and Top spin get the direction of rotation wrong (for the described effect of producing a downward/upward force). That's simple physics (reduced lateral pressue at higher speed difference, Bernoulli's principle). — Preceding unsigned comment added by 84.134.31.245 (talk) 20:20, 8 May 2015 (UTC)