A tremendous amount of effort is focused on collecting data about the Earth’s surface using satellites, airplanes, terrestrial mobile mapping units, total stations and many other devices. Even land areas under water are measurable up to a certain depth. It is reasonable to say that we are at the point where nearly everything above ground is mapped.
7-year-old son has a wonderful imagination and is always thinking of new
inventions. “I’m going to find a way to capture lightning and turn it into free
electricity for people to use,” he said to me the other day.