Featured
The Kordesch Hydrogen Fuel Cell
Karl Kordesch was a front runner of a new wave of energy storage pioneers. He…
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Battery Experiments
Build a Battery-Power Electric Train
Hyperloop intends to create electric trains operating with magnets and levitation, and shooting through tubes…
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Lewis Urry and the First Alkaline Battery
Zinc-carbon batteries such as Gassner pioneered became popular primary cells, although it was not possible…
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Edison Nickel-Iron Battery Energy Cycle
We continue to explore the workings of the Edison nickel-iron battery, following the advice in…
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Edison NiFe Batteries in More Detail
We came across a rare handbook that the Association of Edison Illuminating Companies published in…
Battery Experiments
Power a Battery With Your Hands
Did you know you could power a battery with your hands without cranking a generator?…
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Thomas Edison’s Nickel-Iron Batteries
Thomas Edison had a preoccupation with electricity from his early days as a telegraph operator.…
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Waldemar Jungner Invents NiCad Battery
Waldemar Jungner was a Swedish inventor-engineer born to two church ministers in 1869. That was…
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Was Sakizō Yai First With a Dry Cell?
The emerging world of science did not have google in the late 19th century. The…
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Frederik Hellesen’s First Dry Cell Battery
Gassner’s claim to have patented the first dry cell battery deserves its place in history.…