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.
Gronkowski was nominated three times for Pepsi NFL Rookie of the Week, in Weeks 10, 14, and 17, losing in Week 10 to Tim Tebow, and winning in Weeks 14 and 17. Gronkowski also finished fifth in fan balloting at tight end for the 2011 Pro Bowl, and fourth overall among rookies.