Electricity: Investigating the Presence and Flow of Electric ChargeThe quest to understand how electricity works has led to some of the most important discoveries and inventions of all time. Scientists have figured out how to harness the power of electricity on a very large scale in massive power plants and on a very tiny scale in computer circuits. This book includes geniuses, like Benjamin Franklin, Nikola Tesla, and Thomas Edison. Our modern ideas have been assembled over a long period as scientists built upon the work of their predecessors. This book reveals what we have learned in the past, what we have discovered in the present, and what remains to be explored in the future. Supplemental content includes an activity spread, a substantial and highly detailed timeline, and a list of key people with mini-biographies. |
Contents
4 | |
6 | |
Making Electric Charge Flow
| 10 |
The Discovery of Electromagnetism
| 14 |
The Power of Electricity
| 20 |
How Electricity Moves
| 26 |
The Age of Electronics
| 30 |
Future Prospects
| 34 |
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Alessandro Alessandro Volta ammeter André-Marie Ampère animal electricity atom bar magnet BCE Egyptians became believed Benjamin Franklin brilliant mind bulb called cathode rays chemical coil of wire compass needle computers conduct electricity conductor current electricity developed device discovery Earth Edison electric charge electric charge created electric circuit electric current electric current flowing electric field electric fluid electric motor electricity and magnetism electrolysis electromagnetic radiation electrons experiments Faraday’s force fossil FUEL CELLS Galvani German physicist heat Henry Cavendish Humphry Davy hydrogen insulators invented inventors ionosphere James Clerk Maxwell Joule kind of electric kite lemon battery lightbulb magnet north pole magnetic field Marconi materials Maxwell’s equations Michael Faraday move negatively charged NewYork nineteenth century Ørsted paper clip particles pick Pliny the Elder published resistance rotation scientific scientists discovered speed of light static electricity superconductivity Thales Thomson tiny turn U.S. physicist Volta’s voltaic pile voltmeter William Gilbert William Sturgeon