1745 – Capacitor/Layden Jar

1745 – Capacitor/Layden Jar – Pieter van Musschenbroek

Pieter van Musschenbroek and his assistant, while trying to get sparks using glass with in it water, a wire and a charged  glass tube.  His assistant held the jar in his left and with the wire in the water and the other end of the wire in the charged tube.
When he touch the wire there was a large spark and he felt a in his body.

Later they would add a stopper and wire with a ball.  This became know as the layden jar, named after the  university of Leyden where the experiment was done.

There was another person Von Kleist who may have done the experiment first, but Pieter van Musschenbroek account was clear and repeated by other. 

Pieter van Musschenbroek was also the first to use the term physics.

Experiment – Layden Jar

Items needed:

  • Note: this experiment is subject too humidity and will not work well when there is high humidity
  • 2 feet of PVC pipe
  • Wool, fur or silk
    1. Take the PVC pipe on hold it on one end.
    2. Hold the wool, fur or silk around the pipe, without your hand touching the pipe.
    3. The material up and down the pipe quickly, until you hear a crackling sound. Note: The results will subject to the humidity.
    4. Remove the object and move the area of the pipe you rubbed by your arm, ear, hair and face.
    5. Write down your observations.

    Explanation:

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