4 ms·
The reason microwaves use 2.4 GHz is that water and fat molecules begin to resonate at that frequency, absorbing energy from the waves. It's also one reason wh
by swamp40 13y ago
The reason microwaves use 2.4 GHz is that water and fat molecules begin to resonate at that frequency, absorbing energy from the waves.
It's also one reason why 2.4GHz systems can have problems outdoors.
During rainstorms, the range drops to nothing as the water grabs all the energy.
Also any foliage (leaves w/ moisture inside) blocks the signals more than at other frequencies.
- joshu 13y agoThe "resonating" explanation is wrong. Please stop propagating this mistake. From Wikipedia: "Sometimes, microwave heating is explained as a resonance of water molecules, but this is incorrect; such resonances occur only at above 1 terahertz (THz)."