History of Fundamental dimensions

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	Revision 17 . . (edit) December 10, 2001 12:30 am by Zundark [remove /Comments]
	Revision 16 . . December 10, 2001 12:29 am by AxelBoldt [Reverting. Little Guru, stop this crap.]
	Revision 15 . . December 9, 2001 7:14 pm by Little guru [highlighting numbers]
	Revision 14 . . December 9, 2001 7:12 pm by Little guru [minor changes]
	Revision 13 . . December 9, 2001 8:17 am by Little guru
	Revision 12 . . December 9, 2001 8:15 am by Little guru
	Revision 11 . . December 9, 2001 7:51 am by AxelBoldt [They are not irreducible; it's just a convention which one to call "fundamental". Some people take mass, time and energy.]
	Revision 10 . . December 9, 2001 7:51 am by AxelBoldt [They are not irreducible; it's just a convention which one to call "fundamental". Some people take mass, time and energy.]
	Revision 9 . . December 9, 2001 7:20 am by Little guru
	Revision 8 . . December 9, 2001 5:10 am by Jimbo Wales [Cut it out, Guru.]
	Revision 7 . . December 9, 2001 5:10 am by Little guru
	Revision 6 . . December 9, 2001 5:08 am by Little guru
	Revision 5 . . December 9, 2001 5:04 am by Little guru
	Revision 4 . . December 9, 2001 5:04 am by Little guru
	Revision 3 . . (edit) December 9, 2001 5:01 am by Jimbo Wales
	Revision 2 . . December 9, 2001 4:57 am by Jimbo Wales [A stub now, but at least it isn't incoherent ramblings]
	Revision 1 . . December 9, 2001 4:44 am by Little guru

Difference (from prior major revision) (minor diff, author diff)

Changed: 1c1

In the language of measurement, 'dimensions?' are measurable attributes of reality such as 'time', 'distance?', 'velocity', 'mass', 'weight', and so on.

In the language of measurement, 'dimensions' are measurable attributes of reality such as 'time', 'distance', 'velocity', 'mass', 'weight', and so on.

Added: 3a4

Traditionally, the accepted fundamental dimensions are mass, length, time, and temperature, but in principle, other fundamental dimensions could be used.

Changed: 5c6

This system is considered by the System of Units made by

7

fundamental ones.

Velocity, for example, is length divided by time, and so can be generated from the above list of fundamental dimensions.

Changed: 7,24c8

Traditionally, the accepted more used fundamental dimensions are

4

:
# mass,
# length,
# time,
# and electric current,

but, the other

3

fundamental dimensions can also be used for more complex physics problems:

# ([thermodynamic temperature]?,
# [amount of substance]?,
# [luminous intensity]?).

Velocity, for example, is length divided by time, and so can be generated from the above list of fundamental dimensions.

Physics call velocity a [derived dimension]?.

Please See also: dimensional analysis

See also: SI system of units, dimensional analysis

Removed: 27d10

Removed: 29d11

/Comments?