🔍 Discover the Sound of Science!
The Doppler Effect Demonstration Apparatus is an educational tool designed to illustrate the principles of sound frequency changes. Featuring a powerful 92dB buzzer and a durable ABS construction, this device allows students to engage in hands-on learning about sound dynamics. With a convenient on/off switch and a 2'8" nylon tether, it’s perfect for classroom demonstrations, though it requires batteries for operation.
J**X
Works ok
I was surprised that the tone of the apparatus wasn't consistent across different experiments while stationary. I thought it would emit, say, 440 Hz every time, and you'd hear the pitch change from 440 when you twirled it. Instead, some times that I turned it on it gave a different, lower pitch than other times. Still allowed me to do what I wanted, but a consistent pitch would seem to be very easy to do and would be less confusing in a demonstration.
Trustpilot
3 days ago
2 months ago