4 ms·
100mW/cm^2 is the same intensity as sunlight. It's not a ridiculous amount.
by Robotbeat 6y ago
100mW/cm^2 is the same intensity as sunlight. It's not a ridiculous amount.
- hengheng 6y agoSkin is quite good at not letting sunlight through, but it's not as good at shielding RF.
- Robotbeat 6y agoSkin is translucent (at least for certain ethnic backgrounds). The heat gets in.
- the_pwner224 6y agoHave you ever gone out on a hot day and stood in the sun? There's a big difference between sun and shade. A head with black hair gets super hot, aside from the general heat you feel. Another way to say it is 1 kilowatt per square meter. It's a lot of energy. A 1500 watt electric heater can get my entire bedroom quite a bit hotter than with just the central heat running. Put 2/3rds of that energy into your body and there are certainly going to be effects.
- Robotbeat 6y agoYeah, but I think it's a reasonably safe level for power transmission through corridors where there's not supposed to be any people.
- mikedilger 6y agoSunlight is spread-spectrum. This is focused at the frequency that makes water molecules vibrate - which is why we use it for ovens.
- Robotbeat 6y agoAny heat which is absorbed causes water molecules to vibrate. Including sunlight. There's nothing particularly special about being broad vs narrow spectrum in this case.
- anilakar 6y agoMicrowave ovens operate at 2.45 GHz because of frequency management issues - we just can't afford to have jammers all around the spectrum. The first water absorption peak is actually at 22ish GHz.
- Johnythree 6y agoMicrowave ovens are not "focused at the frequency that makes water molecules vibrate". This is an urban myth. http://www.schoolphysics.co.uk/age16-19/Wave%20properties/Wave%20properties/text/Microwave_ovens/index.html http://www.schoolphysics.co.uk/age16-19/Wave%20properties/Wa...