Re: Media Testing for maclife.de
Re: Media Testing for maclife.de
- Subject: Re: Media Testing for maclife.de
- From: "Bob Frost" <email@hidden>
- Date: Thu, 18 Sep 2008 09:25:17 +0100
Again, the measurement itself is just a number (or set of numbers) - by
itself, it cannot be wrong.
Well, yes it can be wrong! Actually if you take the opposite attitude to
yours, one could say that most almost measurements are incorrect (wrong).
Its just a matter of how incorrect (imprecise). Although I originally
thought you had just mis-spoke, apparently you can be wrong too. I am
surprised at your attitude about it.
David,
My take on this is ....... If I measure an object against a ruler, and it
measures 32.6 divisions, that number is the measurement and cannot be wrong
(unless I misread it, so I double-checked it). The next part of the process
is the interpretation of that measurement; are those divisions mms, cms,
inches? And whichever they are, how accurate are they? If we calibrate that
ruler against a more accurate ruler, we can get the correction factor for
our ruler, which may tell us that the object was 32.2 cm in length, and not
32.6 cm as we might have thought originally. But the original measurement of
32.6 divisions on that scale still stands and is absolutely correct. Isn't
that what Chris is saying?
And for some purposes those measurements can stand alone, without any
interpretation. If you just want to compare the length of two objects, one
measures 30 divisions, one measures 20 divisions, so the first is 50% longer
than the second. The two measurements stand on their own for that
comparison; no interpretation or calibration needed.
I remember trying to calibrate electron microscopes in order to measure
virus particles - great fun!
----- Original Message -----
From: "David Scharf" <email@hidden>
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden