Turbocharge
"From backyard tuners to luxury limousine manufacturers, they've all relied on Buchi's…
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Valve Diode
Fleming invents the first true electronic device (1904) When British electrical engineer John Ambr…
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Contact Lenses
Fick, Kalt and Muller aid vision correction (1887) "A pair of powerful spectacles has someti…
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Answering Machine
Poulsen develops a solution for missed phone calls ( 1904 ) Dane Valdemar Poulsen ( 1869-1942 ) s…
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Automatic Transmission ( 1904 ) | Sturtevant renders gear sticks superfluous
The Sturtevant family business was founded in 1883 by Thomas L. Sturtevant, with the aim of satisf…
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Tea Bag ( 1903 ) | Sullivan accidentally discovers a way to brew an instant cup of tea
Eager to boost orders for his teas, New York tea merchant Thomas Sullivan devised a new method of …
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AC Electric Power (1888) | Tesla delivers cheaper, more reliable electricity
"Alternating current is like a torrent rushing violently over a precipice." Thomas Ediso…
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Powered Airplane ( 1903 ) | The Wright brothers build the first winged aircraft capable of sustained flight
"For some years I have been afflicted with the belief that flight is possible to man." W…
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Electricity Meter (1888) | Shallenberger's meter supplies AC power
"Faith is like electricity. You can't see it, but you can see the light" Unknown aut…
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Glass Bottle-making Machine ( 1903 ) | Owens invention does more to eliminate child labor than previous legislative efforts
"Owens was an inventor. He was no designer, but he could direct engineers." Richard LaFra…
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Two Stroke Engine (1889) | Day invents a useful engine for small motorized devices from garden trimmers to chain saws.
"Spring hasn't really arrived until you are awakened by the first lawn mower" Unknow…
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Blink Comparator ( 1903 ) | Pulfrich's apparatus improves observation of the skies
A blink comparator enables astronomers to look at two different photographic plates taken of the s…
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Swiss Army Knife (1891) | Elsener creates the multifunctional pocket knife
"Fill your bowl to the brim and it will spill. Keep sharpening your knife and it will blunt.&…
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Electrocardiograph ( 1903 ) | Einthoven's machine provides a major boost to diagnosing heart problems
The electrocardiograph-also known as EKG or ECG-is an instrument designed to record minute electr…
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Adjustable Wrench (1891) | Johansson devise a tool for every nut
"Man is a tool using animal....... Without tools he is nothing, with tools he is all." T…
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Spark Plug ( 1902 ) | Honold paves the way for engines with higher operating speeds
"The high-voltage magneto and spark plug...became available just as serial car production [ to…
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Crown Bottle Cap (1891) | Painter invents an effective bottle sealer
"Beer is proof that God loves us and wants us to be happy." Attributed to Benjamin Frankl…
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