A unit of measurement of one cycle per second when one radio wave passes one point in one second of time. Named in honor of Heinrich Hertz, the physicist who developed the theory ...
The process of registering your iPhone with Apple and AT&T. Until your iPhone is activated, it can only be used for emergency calls. While the first generation iPhone was ...
Annual or biennial plant (Raphanus sativus) of the mustard family, probably of Oriental origin, grown for its large, succulent root. Low in calories ...
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