Dan Brown was thrust into rainwater technology out of a need to provide water for his family's new home, which he designed and built in a remote area on the side of a mountain. Other conventional sources of water proved to be inadequate or unavailable. By occupation, Dan is an optical engineer and lens designer and owns his own consulting business. He holds graduate degrees in physics and computer science and is an inventor on ten U.S. patents. He has written numerous technical papers on optical design and is a contributing author to the book, Laser Beam Shaping, edited by Fred M. Dickey. He has worked in the field of optics and acoustics since the late 1970's. He is a true do-it-yourself (DIY) person and enjoys hobbies of home construction, electrical wiring, plumbing, machining, electronic circuit design and fabrication, computer programming, and micro-controlled hardware. But most of all, he enjoys teaching others what he has learned in life, which is why he writes books. Dan also serves as an ordained presbyter in a local Presbyterian church, which he helped plant.