In the classical world, both geometry and astronomy were considered to be part of the Quadrivium, a subset of the seven liberal arts considered essential for a free citizen to master.his played a key role in the emergence of infinitesimal calculus in the 17th century. Furthermore, the theory of perspective showed that there is more to geometry than just the metric properties of figures: perspective is the origin of projective geometry.
Dual Survival star Grady Powell, pictured in his cast photo, is a former U.S. Army Green Beret who was selected for the Special Forces Operators when he was 21 years old. Grady Powell is one half of what the Discovery Channel has dubbed âThe New Generation.
Thomas Wardell Braden. Thomas Wardell Braden (February 22, 1917 â April 3, 2009) was an American journalist, best remembered as the author of Eight Is Enough, which spawned a popular television program, and was co-host of the CNN show Crossfire. Braden was born in Greene, Iowa, and died in Denver, Colorado.