4 ms·
Sunlight is spread-spectrum. This is focused at the frequency that makes water molecules vibrate - which is why we use it for ovens.
by mikedilger 6y ago
Sunlight 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...