236: Air conditioning

<p>Pigweed and Crowhill drink and review a homebrewed no-alcohol porter, then discuss the history and significance of air conditioning.</p> <p>Special guest Longinus joins P&C to contribute his knowledge of history and the development of cities.</p> <p>Refrigeration started with ice houses, ice boxes and ice-cooled freight cars, but eventually moved on to refrigeration, which relies on the laws of physics to create a cool environment. These amazing devices allowed modern refrigerators and air conditioning.</p> <p>Longinus gives some history on how air conditioning slowly worked its way into industry and homes.</p> <p>Air conditioning also had a big effect on the development of the South. Before air conditioning, businesses had to close down for the summer.</p>