steradian, sr
(noun) the unit of solid angle adopted under the Systeme International d’Unites
Source: WordNet® 3.1
ste(reo) + radian
steradian (plural steradians)
(geometry) In the International System of Units, the derived unit of solid angle; the solid angle subtended at the centre of a sphere of radius r by a portion of the surface of the sphere that has area r2. Symbol: sr
• (symbol) sr
• raindates
Source: Wiktionary
2 May 2025
(noun) excavation consisting of a vertical or sloping passageway for finding or mining ore or for ventilating a mine
The Boston Tea Party helped popularize coffee in America. The hefty tea tax imposed on the colonies in 1773 resulted in America switching from tea to coffee. In the lead up to the Revolutionary War, it became patriotic to sip java instead of tea. The Civil War made the drink more pervasive. Coffee helped energize tired troops, and drinking it became an expression of freedom.
