Items Shipped Within the Contiguous 48 United States
package_2 Free Shipping Eligible Items
Free shipping and handling on eligible supply orders of $69 or more. Free shipping calculation is based on the subtotals of eligible items, after any additional discounts are applied.
For subtotals less than $69, the shipping and handling charge is $11.95.
package_2Free Shipping Ineligible Items
Shipping and handling charges are 20% of the subtotal of the items, after any discounts are applied, with a $11.95 minimum charge.
package_2Free Shipping Ineligible Items
Shipping and handling charges are 20% of the subtotal of the items, after any discounts are applied, with a $99 minimum charge. If the subtotal is greater than $1,000, please e-mail freight_quote@schoolspecialty.com for a freight quote.
*Note: Individually negotiated shipping policies will override the standard shipping policy. See Full Details
Frey Scientific's pendulum wave demonstration uses kinetic energy to create a beautiful art display. The simple pendulum, at rest and in motion, demonstrates how a mass accelerates (and decelerates) in response to gravitational force. Multiple pendulums, with decreasing string lengths, in motion will simultaneously create changing visual patterns that mesmerize as they move in and out of sync with each other. The pendulum wave demo consists of a large acrylic frame and nine pendulum with 1" steel balls, as well as an initiator stick to simultaneously release all pendulum. Great product for the classroom, as a gift, or as a display piece. Assembly required. Detailed step by step set up instructions with pictures and Teacher's Guide included.