We had a bad water hammer that was cured by putting on a pressure reduction device and slow-closing valve.

Amos, drawing spiritual power and thought from the Earth and things of the Earth is very ancient. I have within hand's grip an Icelandic crystal which can, when used correctly, find the Sun on cloudy day and hence North. There is the fossil of an ammonite, a creature which died and was turned to stone sometime between now and the Devonian age and which Pliny the Elder (d. AD 79) named. There is iron pyrite, from which a fire can be struck. You can, I think, understand why these among others were held in awe by people in the past.