Dalton
Unit of mass
The dalton (symbol Da) is the immediate predecessor of the atomic mass unit. It is named after John Dalton in recognition of his achievement in introducing the atomic hypothesis into chemistry. Whereas the unified atomic mass unit is defined as 1/12 of the mass of a single atom of 12C, the dalton was defined as 1/16 of the mass of an atom of oxygen (which turned out to be a mixture of 16O, 17O and 18O in a 3150:1:5 ratio with mean atomic mass number of 16,0035).
Placename
Dalton is also a placename in the United Kingdom:
- Dalton, Dumfries and Galloway , Scotland
- Dalton, Lancashire , England
- Dalton, Hexham, Northumberland , England
- Dalton, Ponteland, Northumberland , England
- Dalton, Sowerby, North Yorkshire , England
- Dalton, Richmond, North Yorkshire , England
- Dalton, South Yorkshire , England
Also: Dalton in Furness, Cumbria, England
Dalton is also a placename in the United States of America:
- Dalton, Georgia
- Dalton, Massachusetts
- Dalton, Minnesota
- Dalton, Missouri
- Dalton, Nebraska
- Dalton, New Hampshire
- Dalton, New York
- Dalton, Ohio
- Dalton, Pennsylvania
- The Dalton Trail is an old Tlingit trail, whereas the Dalton Highway is a road through Alaska.
Surname
Notable people whose surname is or was Dalton (with entries in Wikipedia):
- Dalton, Emmett (1861-1937), U.S. outlaw, member of the Dalton Gang
- Dalton, Hugh, Baron Dalton (1887-1962), British politician
- Dalton, John (1766-1844), British physicist and chemist
- Dalton, John M. (1900-1972), U.S. politician
- Dalton, John N. (1931-1986), U.S. politician
- Dalton, Jon, U.S. wrestler ("Jonny Fairplay")
- Dalton, Richard (born 1979), Canadian canoeist
- Dalton, Rick, Canadian politician
- Dalton, Timothy (born 1946), Welsh actor
- Dalton, Tristram (1738-1817), U.S. politician
- Dalton, Walter H., U.S. politician
Other uses
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