1660 – Static electric generator – Otto von Guericke
Otto von Guericke invented the first static electric generator. It was a sulfur ball on a rod that can be hand cranked and rubbed with a object to generate static electricity. He heard crackling and felt the hairs sand on end. Soon other in Europe were copying it and making improvements.
Experiment – Static Electric generator
Items needed:
- Note: this experiment is subject too humidity and will not work well when there is high humidity
- 2 feet of PVC pipe
- Take the PVC pipe on hold it on one end.
- Hold the wool, fur or silk around the pipe, without your hand touching the pipe.
- The material up and down the pipe quickly, until you hear a crackling sound. Note: The results will subject to the humidity.
- Remove the object and move the area of the pipe you rubbed by your arm, ear, hair and face.
- Write down your observations.
Explanation:
The earth acts as really big magnet with a magnetic field. The magnet aligns itself with the magnetic field of the earth.
Experiment – Advanced Static Electric generator
Items needed:
- Note: this experiment is subject too humidity and will not work well when there is high humidity
- 1 foot of 3 or 4 inch and 2 end caps PVC pipe
- 14 inch 2×4 board
- 2 feet of 1×4 board
- 2 – 3 inch – 3/8 inch carriage bolts/li>
- 4 – 3/8 inch nuts for the carriage bolts
- 4 – 3/8 inch washers
- 3/8 inch drill bit and drill.
- 4 – 1 ½ or 1 ¼ inch screws
- crank? Washers, nuts, some extender and a handle?
- Wool, fur or silk
The experiment:
- Take the PVC caps on drill a how in the middle of each end.
- From the inside of the caps thread the carriage and thread and tighten nuts.
- Drill holes bigger than 3/8 inches, 3 inches from the top and in the middle of the 4 inch boards.
- Add washer to the carriage bolts and put the bolts through the holes in the boards
- Insert the PVC pipe to the caps
- Screw the other end of the boards to the 2 x 4 inch board
- Add a washer and nut to the carriage bolts, but don’t tighten the nuts to the board, so the caps can spin freely.
- Handle?
- Hold the wool, fur or silk around the pipe, without your hand touching the pipe.
- The material up anddown the pipe quickly, until you hear a crackling sound. Note: The results will subject to the humidity.
- Remove the object and move the area of the pipe you rubbed by your arm, ear, hair and face.
- Write down your observations.
The earth acts as really big magnet with a magnetic field. The magnet aligns itself with the magnetic field of the earth.