Guides, Tips and Energy Saving Ideas
Daniel and Sherri Salatin of Polyface Farms join David Schafer of Featherman Equipment at the Seven Springs, Pa. Mother Earth News Fair to demonstrate small scale, efficient poultry processing. A lot of laughs and a lot of great instructional video.
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Sixth-grade science students saw an example this week of what a quick change in temperature can cause. Liquid Nitrogen is colder than –200 degrees Celsius, and when it contacts warmer masses, it boils and rapidly converts to gas, greatly expanding in volume. In an enclosed space, such as a water bottle with a cap, it … Read more