Female Aerospace Pioneers

Female Aviation Pioneers

Although men were the first aviators, women quickly took to the air as well. Most early flight schools did not accept female students, but determined women learned from friends or paid for private lessons. Since the early 19th century, women have been making strides in the field of aviation. From flying the first airplanes to walking in space, women have …

Popsicle Harmonica and the Science of Sound

Polaroid picture of a sound wave entering an ear. There is a craft stick harmonica underneath. The title reads Popsicle Harmonica. Science of Sound

What is Sound? A popsicle (craft stick) harmonica is a groovy way to demonstrate the science of sound because all sounds are produced by a certain kind of motion. As you stretch a rubber band and then pluck it, the rubber band moves back and forth so rapidly that its motion appears blurred. The sound you hear comes from its …