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Motley Fool

5 Lessons to Learn From General Electric's Long Slump
Motley Fool
... to be exact] as GE has. You think of appliances, electronics, aviation, healthcare, transportation, sciences, entertainment, plastics, and of course light bulbs. Some sort of GE business or service has touched the lives of millions and perhaps ...


Hackaday

Oddball Mercury Vapor Rectifier Is A Tube Geek's Delight
Hackaday
These tubes have an interesting history dating back to 1901, the year [Peter Cooper Hewitt] developed a mercury vapor light which was much more efficient than conventional bulbs. They had two main problems, they required some special process to get the ...

 




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