n1 sin Î¸1 = n2 sin Î¸2. This form of Snell's law was actually published by RenÃ© Descartes (1596â1650) France in La Dioptrique (1637). Snell did discover the relationship but articulated it in a different way. Today it is the form used by Descartes that is called Snell's law.. The index of refraction.
Robert Paxton Rob Gronkowski (born May 14, 1989), nicknamed  Gronk , is an American football tight end for the New England Patriots of the National Football League (NFL). He played college football at Arizona and was drafted by the Patriots with the 42nd pick in the second round of the 2010 NFL Draft.
View photo. Rob Gronkowski (right) and unnamed friend enjoy the Kentucky Derby. (Getty Images). Our closet living equivalent to DuffMan will serve as Grand Marshal for the Chicago Xfinity Series race scheduled for Saturday, June 20. (For those not in the know, the Xfinity Series is a developmental race series just below the top level, NASCAR's equivalent of Triple-A baseball ...