1. He built his own static electricity generator and performed experiments with Leyden Jars . 2. Leyden jars are still used in education to demonstrate the principles of electrostatics.3. Most early spark transmitters were powered by batteries or Leyden jars . 4. Often the effects of electricity were studied, with the help of the Leyden jar . 5. The Leyden jar provided a much more compact alternative. 6. A rotary switch at the center connects or disconnects the Leyden jars to the terminals. 7. At a young age he built a Leyden jar to play pranks on his friends. 8. The book also describes Leyden jars ( CAUTION! 9. Wistarburgh Glass Works also made scientific glass for the Leyden jars Franklin used in the 1750s. 10. Static electricity stored in a Leyden jar or any capacitor can cause painful or fatal shocks!
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