The day we 'blew up' the oval!

"One of my favorite memories is the day we 'blew up' the oval. I was taking Dr. Dan Sunada's ground water course and he wanted to demonstrate how seismic techniques could be used to map subsurface formations. He marched the class out to the oval and we began digging holes and placing geophones in the ground. Dan then placed half a stick of dynamite in each hole and proceeded to blow them up and record the response. Clearly our CE class was the envy of every student on campus that day. I can't even imagine what Homeland Security would think of that experiment!

"Dan, to assure you hat your efforts (and dynamite) weren't wasted, I'm currently a reservoir engineering manager with ExxonMobil and work with seismic imaging every day. Thanks for the preview of a very useful technology!"