Login or register now to maximize your savings and access profile information, order history, tracking, shopping lists, and more.
Our Customer Service team is available from 8am to 6:00pm, ET, Monday through Friday. Live chat is available from 8am to 5:30pm ET, Monday-Friday.
We serve educators in more than 170 countries worldwide. Create a quote request on our website or contact our International Sales Team.
Login or register now to maximize your savings and access profile information, order history, tracking, shopping lists, and more.
Your Shopping Cart is currently empty. Use Quick Order or Search to quickly add items to your order!
Once the apparatus has been assembled, place the initiator stick against the pendulums from the back and uniformly displace them, then quickly remove the stick. All pendulums begin to swing in phase. Since the periods differ, the phase relationship between pendulums will change in a continuous fashion to make a compelling wave-like display. A great demonstration to introduce topics such as waves or pendulum motion. Use to reinforce vocabulary such as "period," "phase," "beats," and "frequency."
Each 2-line mount pendulum varies from slightly less to slightly more than 20 swings in 20 seconds. The rigid interlocking acrylic frame with installed offset tubing measures about 22" W x 19" H. Allow 40 min to assemble. Includes initiator stick and instructions.
If for any reason you are not satisfied with this item, it is eligible for a return, exchange, refund, or credit up to 180 days from date of purchase. Restrictions may apply. Returns & Exchanges Policy.
