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.
Mark Rogowski. Mark Anthony Gator Rogowski (born August 10, 1966) was a prominent professional skateboarder in the 1980s and very early 1990s. His career ended when he was convicted of assaulting, raping and murdering Jessica Bergsten on March 6, 1992.