Spark Recording Timer Carbon Discs, 10 pack

This AC spark recording timer is used to measure velocity and acceleration of falling or moving objects in dynamics studies.

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This paper tape will work with most recording timers. It is about 17 mm wide and comes on a 150 foot roll.

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This is a 30 g bottle of carbon lumps, also know as charcoal. This chemical is flammable; please read warning labels carefully. Find the carbon formula, formula weight, and more below!

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This economical 2" digital stopwatch features time, date, alarm, start/stop, and lap/reset functions.

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This mini tabletop centrifuge is perfect for use in small labs.

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