Re: Scalar waves

Am Mittwoch000001, 01.05.2024 um 09:46 schrieb J. J. Lodder:

Thomas Heger <ttt_heg@web.de> wrote:
 

Am Montag000029, 29.04.2024 um 15:28 schrieb Ross Finlayson:
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It's rather as there's a physical constant.
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It's 1.0. In natural units, it's infinity.
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Or, there's a physical constant.
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It's infinity. In natural units, it's 1.0.

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I don't like this 'c=1 thing', because 1 is a natural number, while
speed/velocity have physical dimensions with v = dx/dt.
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Because time and distance are not measured with the same units, c had to
have units.

 You really need to work on your misunderstandings about units and
dimensions.
In particular, physical quantities do not -have- a dimension.
Conversely dimension is not a property of physical quantity.
You cannot measure a dimension.

Sure, you measure physical quantities.
Lets say: you measure a current in Amperes.
Then the measurement of - say- 100 mA means, that a certain electrical current has a current strength of 100 mA.
Now 'current strength' is the quantity which is measured. This current strength is then the dimension of the measurement and the value depends on the used units, which are Ampere in this case.
Now all measured quantities need some kind of dimension and unit, if they should make sense in physics.
Even pure numbers have a dimension this way.
E.g. if you count eggs, the result would be a number. But the number alone would not make sense, since 'number of eggs' can also be a dimension.

Dimensions are human constructs that can be assigned arbitrarily,
limited only by the need to be consistent about it.

'Human contruct' is ok, while to 'arbitrary' I would not agree.
E.g. if you measure a distance, than the measure has the dimension 'length', even if you don't use the meter as unit, but angström, light-years or fourlongs instead.
...
TH