Yes, they mainly use similar technology to what Esteban was playing with.
Rather than LASERS i find MASER techology very interesting also.
All sats require a power source which is normally a small nuclear type designed to last the life time of the sat which gets stored in a tank circuit. I think of them like the click, click, click from a geiger counter. Like slowly filling up a water tank with drops of water.
But the circuit has a problem in that the tank in the sat gets full and requires discharging.
And so the energy from the tank circuit is put through the MASER and........
Makes pritty pictures on farmers fields.
The MASER (microwave amplification stimulated emission radiation) was invented before the Laser as they did not have the technology to go up in frequency to light.
As i suggested to Esteban there are microwave frequencies that penetrate the earth quite well. So i suggested instead of using the red laser on the front of his detector to change it to a maser for greater depth.
rgds
09-26-2013, 01:01 PM
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