3 ms·
Radio wave is electromagnetic wave (aka 'light' in a range of frequency). But "speed of light" in non-vacuum is lower. "direct the current through the earth to
by kirubakaran 19y ago
Radio wave is electromagnetic wave (aka 'light' in a range of frequency). But "speed of light" in non-vacuum is lower.
"direct the current through the earth to a specific location reliably"
Earth is not homogenous. I wonder if pointing a low frequency laser into the ground will accomplish anything. It most likely will be refracted in an unpredictable inconsistent way.
- Hexstream 19y agoWell, what if we transmit known data in a strong signal from one end to the other and then compare what was received to what was sent... (insert big hand waving) if we replicate those steps x times, we might be able to map the "interference structure" of the Earth and compensate for that somehow... This is admittedly almost impossibly complicated.
- kirubakaran 19y agoSure but the insides of the earth keep changing right...
- Hexstream 19y agoWe could recalculate the "interference infrastructure" every couple seconds... Remember that we don't need 100% accuracy also; TCP/IP layers reliability on top of unreliability.