Last year we introduced you to Green Revolution Cooling, a startup that developed a liquid cooling enclosure that it says can cool high-density servers for a fraction of the cost of air cooling. The company’s enclosures are filled with 250 gallons of dielectric fluid, with servers inserted vertically into slots in the enclosure. The technology has now made its way into a working data center for Midas Green Technologies, an Austin hosting company offering virtual private servers. Midas Green Tech has posted a series of videos showing the Green Revolution system in action, and comparing it to an adjacent data center using traditional air cooling. This video runs about 2 minutes.