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:
“The great pagan world of which Egypt and Greece were the last living terms ... once had a vast and perhaps perfect science of its own, a science in terms of life. In our era this science crumbled into magic and charlatanry. But even wisdom crumbles.”
—D.H. (David Herbert)
“Where have those flowers and butterflies all gone
That science may have staked the future on?
He seems to say the reason why so much
Should come to nothing must be fairly faced.....”
—Robert Frost (1874–1963)