To facilitate a lower operating temperature, Google hung transparent, plastic curtains between the servers and the walking areas. Inside, they'll pump cold air through the vents while allowing the outside air to stay warm. Photo 11 of 15 in A Rare Glimpse of Google's Data Centers by Skylar Bergl

A Rare Glimpse of Google's Data Centers

11 of 15

To facilitate a lower operating temperature, Google hung transparent, plastic curtains between the servers and the walking areas. Inside, they'll pump cold air through the vents while allowing the outside air to stay warm.