Found 20 - 30 results of 70 programs matching keyword " corner reflector exhibit activity"
The science behind this musical instrument, including the concepts of sound, vibration, resonance, and amplification. An introduction to a crowd-pleasing noisemaker called a sound sandwich, which you can adjust to raise or lower its pitch. A detailed demonstration of how to make this primitive wind instrument using little more than a straw, two craft sticks, and some rubber bands. The science behind this instrument, including a discussion of how vibration produces sound, and how long, massive objects vibrate slowly and produce a low-pitched sound, while shorter, less massive objects vibrate quickly and produce a high-pitched sound. Aeolian Landscape is an exhibit in which a miniature wind-swept desert landscape is recreated by an electric fan and finely ground sand that mimics the process of wind picking up and depositing small particles. Visitors can change the direction of the fan, influencing the shape of the dunes. At the Balancing Ball exhibit, a plastic beach ball floats mysteriously several feet above a large plastic cone. Upon closer inspection, the ball is found to be floating on a stream of air blowing out of the cone; visitors interact with the ball, changing its position in relation to the air flow. Artist Sheldon Brown creates an urban/suburban/rural environment in which the visitor literally "paints" the flying landscape with highways, buildings, and automobiles. This exhibit was part of the Virtual Unreality exhibition. Join Exploratorium senior scientist Paul Doherty as he serves up more hands-on activities related to science in Antarctica. Join Exploratorium senior scientist Paul Doherty as he serves up hands-on activities related to science in Antarctica. What's Christmas like at the South Pole? Also learn about the Race Around the World and the installation of the telescope's new receiver.