Most mobile phones set the 23 - 27mm focal length to 1x (1.0x). Thus, the super wide-angle is 0.4x, 0.5x, 0.6x, and the medium telephoto is 2.0x, 3.0x, 5.0x... But this brings about two basic ...
The possible health effects of radiofrequency waves emitted by cell phones has been a subject of debate for decades ...
LOS ANGELES — The Los Angeles Unified School District (LAUSD) released a report detailing what the district’s cell phone ban will look like. Last June, the LAUSD School Board voted in favor of banning ...
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