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Your cart is empty.This advanced apparatus demonstrates both longitudinal and transverse wave motions. Consisting of a number of eccentric discs supporting a series of metal rods revolving on a handle, transverse waves are obtained. Longitudinal waves are obtained from the bent rods.
mdsteph
Reviewed in the United States on May 6, 2023
Although this is a great instructional device, the vendor packs it poorly, resulting in breakage during shipment. So the first unit arrives broken, and I request a replacement. The replacement arrives ... broken! I request a second replacement, and I am denied, and after checking for stock, I realize the list price has increased by 30%! Since I really like the unit, I will keep one of the units and repair it as best I can (the tallest riser was both bent and snapped). Hopefully the vendor will learn to pack these better. And I wish that Amazon would have let me try another replacement!
Cliente de
Reviewed in Mexico on May 17, 2021
Es un excelente dispositivo para mostrar claramente el comportamiento de las ondas longitudinales y transversales, además de permitir estudiar sus características (incluso registrando mediciones y considerando ángulos de fase, pues la manija que acciona el conjunto tiene grabada una escala sexagesimal). En general, funciona muy bien.
Customer
Reviewed in the United States on February 10, 2016
Came bent. Binds at times.
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