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Old 12-02-2012, 05:58 PM   #11
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I can tell you that the 6 dollar pH meter you get at the nursery for testing soil and liquid pH is worth exactly the price of a Big Mac.

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Old 12-02-2012, 06:23 PM   #12
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I have had very good performance from my Milwaukee MW-101. Very stable, very accurate, very repeatable.

PS: I liked the Big Mac analogy! The MW-101 is a little more expensive than that.

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Old 12-02-2012, 06:29 PM   #13
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1. How do you calibrate a Big Mac?
2. Is a Big Mac worth $6 these days?

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Old 12-02-2012, 09:56 PM   #14
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+1 on the cheapo nursery soil pH testers being junk. Their equation is a bit different than conventional meters -- I believe it to be as follows:

PH = 5.0 + 3* RAND()

Where RAND() returns a random number between 0 and 1.

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Old 12-02-2012, 11:28 PM   #15
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You're revealing your age. As I recall RAND() is the random number generator function for FORTRAN compilers.

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Old 12-03-2012, 12:23 AM   #16
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Quote:
Originally Posted by ajdelange View Post
You're revealing your age. As I recall RAND() is the random number generator function for FORTRAN compilers.
Well, C/C++ libraries also have a rand() function (on all platforms I've used at least). I suppose they're all lowercase, though.
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Old 12-03-2012, 02:51 AM   #17
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Quote:
Originally Posted by SpeedYellow View Post
+1 on the cheapo nursery soil pH testers being junk. Their equation is a bit different than conventional meters -- I believe it to be as follows:

PH = 5.0 + 3* RAND()

Where RAND() returns a random number between 0 and 1.
What I have found with them is that the pH of everything is about 7, unless you dunk the probe in vinegar, in which case the pH is 6.
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Old 12-03-2012, 02:52 AM   #18
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Quote:
Originally Posted by ajdelange View Post
2. Is a Big Mac worth $6 these days?
I don't think so. Neither are the nursery pH meters!
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Old 12-03-2012, 02:59 AM   #19
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Quote:
Originally Posted by ajdelange
You're revealing your age. As I recall RAND() is the random number generator function for FORTRAN compilers.
LOL, you got me there AJ. Had to learn Fortran for my bsme in late 80s/early 90s. I was trying to think Excel but apparently came out Fortran, like when you're learning French or Italian and you accidentally spit out words you learned in high school Spanish.
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Old 12-03-2012, 05:42 AM   #20
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Yes, it was the capital letters that gave you away.

As for the spoken languages I haven't experienced it but my wife learned to speak French as a child in Quebec. Down here in VA Spanish is much more practical and she has been studying that. When we go back to Quebec in the summers what comes out of her mouth is the most amazing 'Creole' of the two, much to the amusement of the locals.

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