T-minus Six Days
Catch the Philadelphia Science Festival before it ends.
Warning: Robot Construction Ahead
Meet the quadrotor, a four-propeller helicopter-style creature that lately has been whizzing around Penn’s GRASP robotics lab with increasing sophistication.
Hope for the thinning crowd
Back in 1992, when Dr. George Cotsarelis landed a research fellowship looking at cancer amidst scalp stem cells, he didn’t expect to stumble on a treatment for male pattern baldness.