View the electronic version of the Arbor Scientific catalog on your computer or iPad. Then click through to order your favorite physics, physical science, and chemistry supplies, tools, and equipment online!

View the electronic version of the Arbor Scientific catalog on your computer or iPad. Then click through to order your favorite physics, physical science, and chemistry supplies, tools, and equipment online! Need to equip a complete physics or physical science classroom? Use our physics lab equipment list to get started!

In 1820, Danish physicist/chemist Hans Christian Ørsted noticed that when current from his Voltaic pile was switched on and off, a compass needle placed near the wire deflected from true magnetic north. Within a few months of careful study, he deduced that a magnetic field circles a current-bearing wire.

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