What is "dalton"

dalton \dalton\ n. [from the chemist John Dalton, proponent of the modern atomic theory of matter.] a unit of mass, approximately 1.66 x 10^ -24 grams; -- it is approximately equal to the mass of one hydrogen atom, but the exact value differs slightly as used in physics and chemistry. It is used mostly to describe the size of proteins and nucleic acids in biochemistry.

Note: Molecular weights are often expressed as dimensionless units, the unit being understood (in chemistry) to be the atomic mass unit with carbon equal to 14. Thus having a ``molecular weight of 255'' means the same as each molecule having a mass of 255 daltons.

Syn: Syn. atomic mass unit.

in reference to a system of school education designed by Helen Parkhurst, 1920, from Dalton, Massachusetts, U.S., where it was first adopted. For Daltonism see color blindness.

n. (context physics English) the atomic mass unit

Dalton may refer to:

Dalton (named after John Dalton) is an ab initio quantum chemistry computer program. It is capable of calculating various molecular properties using the Hartree–Fock, MP2, MCSCF and coupled cluster theories. Version 2.0 of DALTON added support for density functional theory calculations. There are many authors, including Trygve Helgaker, Poul Jørgensen and Kenneth Ruud.

Dalton is a lunar impact crater that is located near the western limb of the Moon's near side. It is attached to the eastern rim of the walled plain Einstein, with Balboa lying just to the north and Vasco da Gama due south. The rim of this crater is not heavily eroded, and the interior walls are terraced. The interior floor has a system of rilles that are generally concentric with the inner wall. There is a small crater near the southern inner wall, and another at the north face of the small central peak.

Dalton is a surname of Norman origin found in Ireland and Britain and places where people from those backgrounds emigrated to. The Hiberno-Norman Dalton sept controlled an area of the Irish midlands following the Norman invasion and assimilation into Ireland. Notable people with the surname include:

Dalton is a Danish supergroup made up of singers Lars Lilholt, Johnny Madsen and Allan Olsen, all successful artists in their own right. The band was put together in 1983. But they came up with their initial album only in 1992, a full decade after having performed together. The album was self-titled Dalton. The group disbanded immediately after the tour was arranged in connection with the record release.

They reunited in 2005 for a musical project and have made a comeback in 2010 onwards to engage in a big tour together.

Dalton is a masculine given name. Notable people with the name include:

• Dalton Bales, Ontario cabinet minister and lawyer
• Dalton Bell, Canadian football quarterback
• Dalton Camp, Canadian journalist, politician, political strategist and commentator
• Dalton Conley (born 1969), American sociologist
• Dalton Grant, British high jumper
• Dalton Hilliard, former professional American football running back
• Dalton W. Honoré, American politician
• Dalton Jones, former Major League Baseball player
• Dalton Lindo, reggae artist popularly known as "Screwdriver"
• Dalton McCarthy, Canadian lawyer and parliamentarian
• Dalton McGuinty, Ontario's premier
• Dalton Alan Munaretto, Brazilian footballer
• Dalton Philips, Irish businessman
• Dalton Prejean, American murderer executed by the electric chair in Louisiana in 1990
• Dalton Thrower (born 1993), Canadian ice hockey defenceman
• Dalton Trevisan, Brazilian author of short stories
• Dalton Trumbo, American screenwriter and author