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.
EXCLUSIVE: How the Patriots' Rob Gronkowski partied like a rock star at his Vegas birthday celebration - and reveals his new Tinder dating strategy. New England Patriots' tight end Rob 'Gronk' Gronkowski just celebrated his 26th birthday with a week-long celebration trip to Las Vegas. The 6'6' hunk hired a mini bus and invited his four brothers, his dad Gordy, and a few close friends to ride along on the all-expense paid weekend in Sin City.