On Nov. 7, Hawaiian Electric reported third-quarter earnings of 49 cents per share, beating the Zacks Consensus Estimate of 42 cents by 17%.

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Both Edison and Swan invented the electric light bulb (or rather, a workable one) at about the same time, Swan beating Edison to a patent by a year.

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Implantable cardioverter-defibrillators (ICDs) are small battery-powered devices that can deliver a small electric shock to the heart in response to a life-threatening arrhythmia (when the heart starts beating rapidly and inefficiently).

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