Jim McLennan0 Comments
September 8, 2016
spaceplay / pause
qunload | stop
ffullscreen
shift + ←→slower / faster
↑↓volume
mmute
←→seek
. seek to previous
12… 6 seek to 10%, 20% … 60%
How tight, or loose should your grip be?
Common sense suggests tight.
This experiment, done by real “tennis scientists” confounds the issue.
Enjoy
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