Electrical ground probing

Following on from last week's post about remote sensing, this week we have 'Electrical ground probing; measuring the electrical resistance of the ground to find buried objects.'

The activity models the principles involved in surveying by electrical methods. Such techniques are frequently used in mineral exploration or in archaeological surveying. Forensic scientists also use the method to investigate disturbed ground in the search for objects buried by criminals.
Other related ideas can be found on the website.