Impact sprinkler - Wikipedia

Fire sprinkler - Wikipedia

Books: en.wikipedia.org

Orbit tripod sprinkler features a heavy duty 1/2 in. zinc head that is adjustable to reach up to 80 ft. in diameter in a partial to full circle. It is

Orbit 56667N Zinc Impact Sprinkler on Tripod Base

Fire sprinkler system - Wikipedia

How Fire Sprinklers Work: Thermal Sensitivity

File:Agency Plains Irrigation Improvements for Water Quality

What is a French Drain and How Does it Work?

File:Irrigation in Cotton Field - 51488231980.jpg - Wikipedia

Nearly 1 in 4 people now drought stricken, according to UN report

Irrigation - Wikipedia

Plan & Install a Sub-Surface Lawn Drip System - Dural Irrigation

Found on Feynman's Wikipedia page. One of these achievements is

Irrigation in Australia - Wikipedia