Seismo-electromagnetics

Seismo-electromagnetics is a way of measuring temperatures and forces deep inside the Earth using electricity. Drilling deep into the Earth is expensive and dangerous, so scientists use seismo-electromagnetic technology to measure things like temperature and pressure at great depths without actually having to enter the Earth. They do this by sending small electrical signals into the Earth, like a flashlight shining in a dark room. Some of the energy bounces off the different layers of the Earth and then comes back out. Scientists measure the energy that comes back out and compare it to the energy that was sent in. Then, they use these measurements to understand temperatures, pressure, and other things inside the Earth.