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Love Meter
AKA hand boiler. An exotic bit of hand blown glass with a bulb at top and bottom connected by some zippy tubing that spirals, loops, and/or jogs. In the closed system is some colored liquid (methyl chloride) that is very light. Hold the lower bulb in you hand and as the air in the system is warmed it pushes the fluid through the loops to the upper chamber. When all the liquid is pushed out of the lower bulb, expanding air will bubble through the tubing making it appear that the liquid is boiling. WARNING! The glass is fragile and the liquid is nasty. If you drop the thing on e.g. the kitchen tile, it will eat the finish off the tile and the stain in the liquid will permanently stain the floor. So don't let kids handle this item unsupervised. About 7" tall, it is a favorite in our stores.
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6199 LOVE METER |
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Meter That Volt
A nice price for a 0-10 volt DC voltmeter. The black-plastic housing is 4" x 5-1/2" x 3-3/4" high overall, with a slanted gauge face about 3-1/2" x 4". Red and black thumbscrew terminals for positive and negative inputs. Great for small school projects or testing batteries around the house.
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91698 VOLTMETER |
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