Note that the strings are not really the same as segments and they are not exactly coplanar, but we can still use the geometric model of a plane for the head of a tennis racket, even if the model is not perfect. Basic Postulates Now that we have some basic vocabulary, we can talk ...
11 yrsLocated in CN View more productsView profile Product descriptions from the supplier Warning/Disclaimer WARNING: Jewelry products may expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm...