Re: A Complex Metaphysical Conundrum

"Cursitor Doom" <cd@notformail.com> wrote in message
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On Thu, 11 Apr 2024 11:58:02 -0400, "Edward Rawde"
<invalid@invalid.invalid> wrote:
>

"Cursitor Doom" <cd@notformail.com> wrote in message
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On Wed, 10 Apr 2024 21:10:59 -0400, "Edward Rawde"
<invalid@invalid.invalid> wrote:
>

>
"Cursitor Doom" <cd@notformail.com> wrote in message
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On Wed, 10 Apr 2024 18:18:21 -0400, "Edward Rawde"
<invalid@invalid.invalid> wrote:
>

"Cursitor Doom" <cd@notformail.com> wrote in message
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On Wed, 10 Apr 2024 16:11:39 -0400, "Edward Rawde"
<invalid@invalid.invalid> wrote:
>

"john larkin" <jl@650pot.com> wrote in message
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On Wed, 10 Apr 2024 15:57:55 -0400, "Edward Rawde"
<invalid@invalid.invalid> wrote:
>

"Cursitor Doom" <cd@notformail.com> wrote in message
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Gentlemen,
>
This is an exam question that trips up even some of the best
students.
See what you make of it!
>
Q: Is this statement correct: 'The signal level at the modem
input
increased by 2dBmV going from +3dBmV to +5dBmV.'
>
Your pal, CD.

>
Changing a signal level can be thought of as multiplying the
signal
by
a
constant.

>
You can change something by adding, too.
>

>
I haven't looked at it in detail but a bit of playing with a search
engine
finds the question here:
https://broadbandlibrary.com/wise-and-mighty-decibel/
>

>
Jeez, when I said, "No Googling" I didn't seriously think anyone
here
would be dumb enough to need to actually do so! :-D

>
I don't see any mention of any search engine in your first post.
>
I tend to agree with John Larkin on this.
>
If a student can use a meter to see that a signal which was 3
somethings
is
now 5 somethings (depending on what is being measured) then I give
them
a
pass.

>
So going back to the orginal question as stated, you're saying the
statement in quotes is *correct* then. Nice to have a straight answer.

>
If you mean that do I think that something increases by 2 when it goes
from
3 to 5 then yes that seems reasonable to me.

>
I'm afraid that's not exactly the question, though.
Here's what was asked again:
>
Q: Is this statement correct: 'The signal level at the modem input
increased by 2dBmV going from +3dBmV to +5dBmV.'
>
You've already nailed your colours to the mast with your opinion that
the statement is correct. Are you happy with that or would you like to
change your mind?

>
What's wrong with the mind I already have?
>
My opinion is in my first reply to you.
>
Do the students who take this exam do any practical work or just sit in
class?

>
They're students so of course they don't do anything useful.

Is that because you don't teach them how to do anything useful or because
they don't want to be taught how do anything useful?