Classic science demonstration guaranteed to grab your students’ attention! Slide your fingers repeatedly along this 60-cm-long metal rod to create an ear-piercing sound. You control how loud the sound gets — from a whisper to a auditorium-filling shriek. Absolutely incredible! Great experiment to demonstrate the difference between longitudinal and transverse waves.
Available at https://www.teachersource.com/product/singing-rod/sound-waves.
Post time: Jun-21-2017