To get you up to speed before diving into Half-Life: Absolute Zero's revival, it was a total conversion mod project that aimed to "re-create the original ideas and plans from Half-Life's early ...

William, Austin, Texas, USA Absolute zero is zero degrees on the Kelvin thermometer scale; it corresponds to about -460 degrees Fahrenheit and -273 degrees Celsius. Even space isn't that cold.

How would you go about determining absolute zero? Intuitively, it seems like you’d need some complicated physics setup with lasers and maybe some liquid helium. But as it turns out, all you need ...