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.
The entire Gronkowski clan will travel to Chicagoland Speedway on June 20 to serve as the co-grand marshals for a NASCAR Xfinity Series race. But hereâs the kicker: Gronk will drive the pace car. Yes, someone is giving Rob Gronkowski the keys to a vehicle and letting him drive it around a race track.