Talk:Surface power density

Specific power: 2 watt/kg cell phone or mobile phone limit "SAR"
I've read that cell phones aren't allowed to output more than 2 watt/kg. I don't understand what that means. The reason I searched for the "w/kg article" was to find this out. So an example would be useful, what w/kg really means. Anyway if there is no reply, maybe I'll do some research in the future and add to this article an example section. Logictheo 10:15, 7 April 2007 (UTC)


 * See specific absorption rate. Markus Kuhn 21:05, 4 December 2007 (UTC)

"Specific power"
I've always associated "specific ___" with a quantity per unit mass, as in specific volume (volume per unit mass: (m3/kg)), specific energy/energy-to-weight ratio (energy per unit mass: (J/kg)), specific power/power-to-weight ratio (power per unit mass: (W/kg)), etc. It seems as though calling this specific power is either a mistake, or it's a poor choice of terminology, even though the citation seems to have a reputable source (nist.gov: National Institute of Standards and Technology; note: the citation is vague/incomplete, so I wasn't able to find the information cited). — Preceding unsigned comment added by Bfoshizzle1 (talk • contribs) 02:44, 2 November 2018 (UTC)