1. Lightening
Sounds within this range can be reproduced by playing the lowest notes on the organ, tuba, and other instruments. ... In these jars, sparks could be generated and observed. While many scientists have seen the similarity between laboratory sparks and lightning, Franklin was the first to design an experiment, which proved the electrical nature of lightning. ... If the clouds were electrically charged then sparks would jump between the iron rod and a grounded wire, in this case, held by an insulating wax candle. ... When sparks jumped from the electrified key, he knew that an electrical cur...
- Word Count: 2054
- Approx Pages: 8
- Grade Level: High School