In Science
- The atomic number of tantalum
In astronomy,
- Messier object M73, a magnitude 9.0 apparent open cluster in the constellation Aquarius
- The New General Catalogue object NGC 73, a barred spiral galaxy in the constellation Cetus
- The Saros number of the solar eclipse series which began on 717 BC July and ended on 582 September. The duration of Saros series 73 was 1298.1 years, and it contained 73 solar eclipses.
- The number of seconds it took for the OV-099 shuttle to explode after launch.
- 73 is the length of the Arecibo message, sent to space in search for extraterrestrial intelligence.
Read more about this topic: 73 (number)
Famous quotes containing the word science:
“We have to ask ourselves whether medicine is to remain a humanitarian and respected profession or a new but depersonalized science in the service of prolonging life rather than diminishing human suffering.”
—Elisabeth Kübler-Ross (b. 1926)
“Natural science will in time incorporate into itself the science of man, just as the science of man will incorporate into itself natural science: there will be one science.”
—Karl Marx (1818–1883)