In Science
- The number of polynucleotide strands in a DNA double helix.
- The first magic number.
- The atomic number of helium.
- Group 2 in the Periodic table of the elements consists of the alkaline earth metals whose usual valence is +2.
- Period 2 in the Periodic table consists of the eight elements lithium through neon.
Read more about this topic: 2 (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)
“Oh, what does science not conceal today! How much, at any rate, is it meant to conceal!”
—Friedrich Nietzsche (1844–1900)