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A Lithium-Ion Battery In The Trunk
Should we leave a lithium-ion battery in the trunk while traveling? That’s the space at the rear of a car…
European COVID Surge Could Repeat in U.S.
World Health Organization says it is ‘very worried’ about the spread of Covid-19 in Europe. As the continent battles a…
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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. He even chose night shifts…
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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 a year of failed harvests…
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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 only practical ways to communicate…
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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. However his was not the…