More than 100 students from six area high schools attended the fifth annual “Physics Day” program at Penn State Behrend. They built pizza-box spectrometers and, using a laser, determined the track spacing on a compact disc.
The Nov. 26 program closed with a demonstration show that highlighted several laws of physics, including Bernoulli’s principle, which was first set forth in 1738. To explain it, senior laboratory technician Jerry Macgraw used a leaf blower to unspool a roll of toilet paper. (He also exploded hydrogen balloons and fired a pingpong-ball cannon.)
The Erie Times-News wrote this story about the program.