A ham sandwich walks into a bar. The bartender says, "Sorry, we don't serve food here."
Artificial graniteIn 1923, Time magazine described a process using extreme heat and pressure that could make granite and jade artificially within a few hours at the geophysical laboratory of the Carnegie Institution of Washington, D.C. The raw ingredients of the minerals were heated in a small electric furnace to 2,500°F under a pressure gradually increased up to 200,000-psi. Extreme pressure could also inject water into rock resulting in a soft, gelatin-like condition..«[Ref: Time 24 Dec 1923] |
