Talk:Base unit of measurement/Archive 1

I'm not sure about the tone of this article. Doesn't this discussion belong under 'dimensional analysis'? --

The Anome

Hmm, nah, I've added this new page as a link to the physics page under the "Concepts" paragraph.

Little_guru

Yes, you did that, but the question is whether a link to dimensional analysis (and maybe adding some information to that page) wouldn't have sufficed. --AxelBoldt

And whilst we're at it, what about geometric algebra? (See http://www.mrao.cam.ac.uk/~clifford/introduction/intro/intro.html for a discussion). --

The Anome

I worked as a computer science technician in 2 different Electrotechnical labs, and I can assure you that imaginary numbers exist in the calculus of alternate currents.

Is this what you were aiming to talk about?

Little_guru

No, I'm not claming that complex numbers don't exist. I was talking about vector sums between quantities of different dimensions. Of course all of these notations are abstractions - do the natural numbers 'exist' in reality? How 'real' they (and all the other abstractions) are in physical theory has only to do with the falsifiability of their predictions. -- The Anome

I think this material is (or should be covered) on dimensional analysis. Also, the tone is too colloquial here. --AxelBoldt

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... and that we CAN NOT obviously add a Time measurement (say 5 seconds) to a Length measurement (say 1 mile) because it makes ABSOLUTELY NO sense.

It would make quite lot of sense. In fact, it's quite often being done in physics.

5 seconds + 1 mile = 5.0000053681938 seconds = 931412.99 miles.

--Taw

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Sorry, but i got to disagree with that Taw.

• Because V=S/t where

• • V=Velocity

• • S=Space

• • t=Time

• Because 1 mile=1.609 Kilometers

• Because the speed of light is 300,000,000 km/sec that is 186,451,211 miles per second

• Because of the fact that a light ray needs 0,000005363 seconds to "run" for a mile (that is 5,36E-6 in exp notation)

What are you adding?

Duh?

5 oranges with 1 apple and that makes 5.0000053681938 oranges = 931412.99 apples

LOL

Q.E.D.