Fears about cell phones causing cancer persist despite scientific evidence to the contrary, with Health Secretary Robert F. Kennedy Jr. announcing a new investigation. Here’s what we know.

Fluoride in the drinking water; vaccine denialism; chemtrails; the “causes” of autism – basically, pick a health-related ...

A report from Reuters says that a French agency, Agence Nationale des Fréquence (ANFR), has told Apple to stop selling the iPhone 12 because their testing shows it emits too much radio frequency ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. PARIS (AP) — French regulators ordered Apple ...

Modern technology uses many frequencies of electromagnetic radiation for communication, including radio waves, TV signals, microwaves and visible light. Now, a University of Utah study shows how ...

Components of a typical laser include gain medium, laser pumping energy and resonant optical cavity. The output frequency of most lasers is fixed or within a small range, and it is difficult to ...