Snell Biography Willebrord van Roijen Snell Willebrord Snell was a great scientist, mathematician, and astronomer. He had many great accomplishments in his lifetime. http://www.angelfire.com/scifi/concordiasci/snell/snellbiography.html
Sociology - Willebrord Snell Willebrord Snell (1580 – October 30, 1626), also known as Snell van Royen or Snellius, was a Dutch astronomer and mathematician, most famous for the law of refraction now known as http://www.aboutsociology.com/sociology/Willebrord_Snell
