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Although it never quite measured up to expectations, the Edison battery paved the way for the modern alkaline battery.

From the Stone Age to today, the search is constantly underway for better, more efficient ways to cook food. Reflecting many of the advances in science and technology, the electric range has become a popular choice for homes and businesses.

If TV medical dramas have taught us anything, it's how to recognize the heart's characteristic peaks and valleys crawling across monitors in emergency rooms. These images represent the electrical activity of the beating heart as recorded by an electrocardiograph, a machine that revolutionized diagnostic cardiology and helped garner a Nobel Prize.

A very primitive capacitor, this early device allowed scientists to give discs of metal specific charge.

Otto von Guericke's electrostatic machine evolved into increasingly improved instruments in the hands of later scientists. In the early 1700s, an Englishman named Francis Hauksbee designed his own electrostatic generator, a feat stemming from his studies of mercury.

Few inventions have shaped technology as much as the electric motor, but the very first version — the Faraday motor — didn't look anything like the modern motor.

Compared to incandescent lamps, fluorescent lamps last longer, require less energy and produce less heat, advantages resulting from the different way in which they generate light.

Several years before the telegraph created by American inventor Samuel Morse revolutionized communications, two German scientists built their own functional telegraph.

Counting alpha particles was tedious and time-consuming work, until Hans Geiger came up with a device that did the job automatically.

For centuries, the electroscope was one of the most popular instruments used by scientists to study electricity. Abraham Bennet first described this version in 1787.

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