SI Multiples
Steradians only go up to 4π ≈ 12.56637, so the large multiples are not usable for the base unit, but could show up in such things as rate of coverage of solid angle, for example.
| Multiple | Name | Symbol | May be visualized as... |
|---|---|---|---|
| 101 | decasteradian | dasr | Surface area of the Americas plus liquid water on Earth, relative to Earth (cyan on map) |
| 100 | steradian | sr | Area of Oceania plus Asia excluding Russia, relative to Earth (yellow on map) |
| 10−1 | decisteradian | dsr | Area of Algeria plus Libya, relative to Earth (green on map) |
| 10−2 | centisteradian | csr | Area of Zimbabwe, relative to Earth (blue on map) |
| 10−3 | millisteradian | msr | Area of Switzerland, relative to Earth (red on map) |
| 10−6 | microsteradian | µsr | Area of Costa Mesa, California, relative to Earth |
| 10−9 | nanosteradian | nsr | About 8 American football fields, relative to Earth |
| 10−12 | picosteradian | psr | Area of a small apartment, relative to Earth |
| 10−15 | femtosteradian | fsr | Area of a sheet of A5 paper, relative to Earth |
| 10−18 | attosteradian | asr | Area of a quarter-inch square, relative to Earth |
| 10−21 | zeptosteradian | zsr | Cross-sectional area of 32 gauge wire, relative to Earth |
| 10−24 | yoctosteradian | ysr | Surface area of a red blood cell, relative to Earth |
Read more about this topic: Steradian
Famous quotes containing the word multiples:
“Just because multiples can turn to each other for companionship, and at times for comfort, don’t be fooled into thinking you’re not still vital to them. Don’t let or make multiples be parents as well as siblings to each other. . . . Parent interaction with infants and young children has everything to do with how those children develop on every level, including how they develop their identities.”
—Pamela Patrick Novotny (20th century)