Description

Tensioned steel rod in a heavy iron frame breaks a brittle iron cross-rod as cooling contraction pulls it taut

Red LED on a demonstration base with 4mm plug connections

Ten-pack of 16mm steel ball bearings sized as a larger projectile for ramp experiments

Features white enamel graduations every 50mL

Ticker Tape Timer Device with Carbon Disks Physics Tensioned steel rod in aPlastic cased ticker tape timer at 4. 5 by 3 by 1. 5 inches producing 50 60 dots per second via a vibrating striker, shipped with ticker tape, carbon discs, and a movable disc plug.

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Ticker Tape Timer Device with Carbon Disks Physics Tensioned steel rod in a

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