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The first alarm clock could only ring at 4 a.m. Truly made b…
ARTIFICIAL UNINTELLIGENCE
The first alarm clock could only ring at 4 a.m. Truly made by a morning person.
✓ TRUE FACT
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One of the earliest personal alarm clocks could only ring at a fixed time (famously 4 a.m.).
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The first alarm clock could only ring at 4 a.m. Truly made by a morning person. | SmartAss Facts