For centuries, geologists have recognized that the rocks that line riverbeds tend to be smaller and rounder further downstream. But these experts have not agreed on the reason these patterns exist. Abrasion causes rocks to grind down and become rounder as they are transported down the river.
Media Contact:Katherine Unger Baillie | firstname.lastname@example.org | 215-898-9194February 12, 2014
A new study by the University of Pennsylvania’s Douglas Jerolmack, working with mathematicians at Budapest University of Technology and Economics, has found that rocks traveling down a riverbed follow a distinct pattern, first becoming rounder, and then smaller.
Media Contact:Jill DiSanto | email@example.com | 215-898-4820July 5, 2013
A group of students from the Graduate School of Education at the University of Pennsylvania is taking the concept of “study abroad” one step further.