Description
Closing to 3m and extending to 9m
lets students compare how line density per unit length controls the spacing of the resulting interference pattern
heating the bar until it no longer passes through the opening and contraction returns it
and 6V-powered ignition light staging each step
Two-speed ticker timer kit printing 25 or 40 dots per second on paper tape via carbon discs
Stand for Alcohol Burner, 5 x 5 x 5" Material_Polypropylene Closing to 3m and extendingChrome plated steel wire stand at 5 x 5 x 5 inches supports flasks and beakers above alcohol burners for classroom chemistry demonstrations.
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