3 ms·

Is power the only relevant variable? What about wavelength?

• jdietrich 3y ago
  A photon emitted from a mobile phone antenna has about five orders of magnitude less energy than a photon of visible light. It just isn't plausible that such a relatively small number of relatively low-energy photons could have a meaningful impact on human heath, considering our overall exposure to electromagnetic radiation. https://en.wikipedia.org/wiki/Electromagnetic_spectrum https://en.wikipedia.org/wiki/Electromagnetic_spectrum
• aintgonnatakeit 3y ago
  Super important https://web.archive.org/web/20100708230258/http://people.csail.mit.edu/rahimi/helmet/ https://web.archive.org/web/20100708230258/http://people.csa...
• pletnes 3y ago
  Sure. 3 Watts of gamma rays will do a different job. But a cell phone works in the microwave range - visible light, infrared, UV are all more dangerous - and the sun will blast you with 1 kW on a nice sunny day. Cell phones are not the problem (well, not the microwaves at least).
  • refurb 3y ago
    E = hf You can measure the energy of one photo using this equation. Microwaves at 2.45 Ghz = 1.6243499999999998e-24 eV Gamma radiation at 3 x 10(19) Hz = 1.9889999999999998e-14 eV So about 10(10) more energy per gamma ray photo or about 10 billion times more energy.