The story
From API (“American Petroleum Institute”).
Etymology from Wiktionary, CC BY-SA 4.0.
API unit
Today it means: A unit of radioactivity used for measuring natural gamma rays in the ground. Full definition →
Today it means: A unit of radioactivity used for measuring natural gamma rays in the ground. Full definition →
From API (“American Petroleum Institute”).
Etymology from Wiktionary, CC BY-SA 4.0.