Just an EM frequency which water molecules tend to have a particular affinity for. This is when concentrated microwaves become dangerous. Its what makes microwave ovens work.Grand Fromage wrote: Playing too much SimCity 2000.The proof of concept beams actually aren't particularly dangerous, you can stick your hand in the beam without incident. The principle's similar to Nikola Tesla's wireless power distribution system. Microwaves are not any more automatically evil than ZOMG ATOMS! It's just a light frequency. :p
Not all photons are created equal.