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These bar magnets measure about 1/4″ x 1/2″ x 3″ (72 x 12 x 6 mm). The magnets are made of Aluminum (8%), Nickel (14%), Cobalt (24%), copper (3%) and Iron (51%) which makes for a super strong and high quality magnet. Alnico bar magnets can be used with iron filings to demonstrate magnetic lines…
A heavy duty, five cell counter. It records up to 999 for each cell. It also has a totalizer that show the sum of all five counters. Internal bell sounds at one hundred increments of the total count. The reset knobs on both sides can clear all the numbers to zero. Has red and white…
Solid Steel balls with diameter of one inch (about 25 millimeters) are used in mechanics and magnetism experiments. They are also used in construction of pendulums and demonstration of Newton laws and physics experiments related to Inertia, mass and friction. Note: Steel balls can rust if they get wet or in high humidity conditions. Keep…
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