Lecture series, part 2

Adam and I went to the second installment of the "Dine and Discover" lecture series on the Ohio River last night. The speaker was Jeff Kovatch, a biology professor at Marshall University, who spoke on the scale of life in the river. We had to leave about halfway through Kovatch's talk, as Adam had a presentation to give at his Cub Scout meeting the same night.

Adam's presentation was on bridges. He made drawings of truss, suspension and cable stay bridges, explaining how each design works. He also showed a model he made of an arch bridge. He explained how some bridges have the arch under the deck and how some have it over.

He wanted me there in case he had problems, but he did a pretty good job on his own.