Tag Archives: Invention
Very Cool
September 9, 2005 – 8:31 am
Dave Williams has developed a refrigeration system that relies just on compressed air. Williams, 26, knew that forcing compressed air through a hole in the middle of a pipe causes hot and cold air to flow from opposite ends, a phenomenon known as the Ranque-Hilsch vortex-tube effect. No one is quite sure how the separation […]