Solar Food Drying

By Marcella Shaffer Issue #58 • July/August, 1999 The oldest known method of food preservation is drying food using the heat from the sun. Unfortunately it has become the least used as freezers and pressure canners...

Solar power trailer Part 2

By Jeffrey Yago, P.E., CEM Issue #109 • January/February, 2008 In Part I of this article in the November/December 2007 issue, I described the many uses for a solar power system that could be made totally...

Prepper power! Part 1

By Jeffrey Yago, P.E., CEM Issue #136 • July/August, 2012 The interesting thing about being a "prepper" is most preppers don't want anybody to know they are one! No doubt many fear they will be ostracized...

Water pumping windmills

By Dorothy Ainsworth Issue #90 • November/December, 2004 Standing tall like a giant sunflower in a sea of undulating prairie grasses, or in any rural setting, a windmill is a thing of beauty. Not only are...

Design calculations for no-head, low-head waterwheels

By Rudy Behrens Issue #17 • September/October, 1992 (This is the second of our three-part series on waterwheels. The third installation (Issue No. 18) will deal with overshot wheels. -- Editor.) For those of you who are...

Radiant floor heating — Alternative to forced-air heating is solar-powered, too An interview with...

By Michael Hackleman Issue #64 • July/August, 2000 Hydronic, or radiant floor heating is a method of heating a home, shop, or other building with the heat concentrated in the floor. It works by embedding special...

Sunny Solutions for north slope applications

By Michael Hackleman Issue #61 • January/February, 2000   Solar-powered pumps have proved their worth for many installations worldwide, anywhere under the sun. However, in the northern hemisphere, a year-around spring located at the base of a...

Solar-powered water purifiers

By Jeffrey Yago, P.E., CEM Issue #146 • March/April, 2014 Most of us can stay alive up to a month without any food if stranded, but we could not live longer than three days without water...

Power your bug-out bag

By Jeff Yago, P.E., CEM Issue #160 • July/August, 2016 More and more people are starting to see the advantage of having a bug-out bag for each member of their family. Normally these bags are kept...

Millenium Vehicles

By Michael Hackleman Issue #57 • May/June, 1999 A major failing of transportation worldwide is that 99.9% of vehicles on farms, street, and freeways work on one energy source: liquid fuels. In any disaster—small or large,...

Make your own biodiesel for 80¢ per gallon

By Jeffrey Yago, P.E., CEM Issue #101 • September/October, 2006 My Ford F-250 diesel crew-cab pickup did not cause me to become interested in making my own bio-diesel fuel. No, the final straw was when I...

Solar Power 101 — Batteries: Part 2

By Jeffrey Yago, P.E., CEM Issue #88 • July/August, 2004 This article is the second in a series of what will be a beginner's course in solar electricty. Simultaneously we have instituted a Home Energy Information...

Battery-Powered Tools are Changing

By Jeffrey Yago, P.E., C.E.M. April/May/June, 2019 Battery-powered tool technology is now undergoing some rapid changes in both the power of the tool motors and the batteries supplying the added power. For many years most battery-powered...

Build a community assistance recharging station

By Jeffrey Yago, P.E., CEM Issue #152 • March/April, 2015 Many preppers are starting to realize they cannot do it all on their own. True security during a major disaster or civil unrest is much more...

Is steam power in your future?

By Skip Goebel Issue #43 • January/February, 1997 If you're thinking steam is old-fashioned, consider this: Almost a century ago, steam cars and ships attained speeds and efficiencies which are still difficult to attain, even with...

Add solar power to your truck camper

By Jeffrey Yago, P.E., CEM Issue #93 • May/June, 2005 The recreational vehicle (RV) world is having a major comeback with the influx of baby-boomers. Today's travel trailers, 5th wheels, and motor coaches now include everything...