[AZ-Observing] Re: Oscilloscope
- From: "Ken Sikes" <kengsikes@xxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Sat, 12 Nov 2011 10:21:13 -0700
Dan,
I agree with you on the fact that students in this day and age do not know
how to choose means of just about anything. When calculators were allowed
to be used the pencil and paper method of +, -, x, and / are no longer
used. Many said the same when slide rules were replaced with the calculators
! I guess the point is that the answer is more important than the means, as
it is faster and more accurate. Maybe in the future we "Dinosaurs" will be
remembered.
Ken Sikes
----- Original Message -----
From: "Dan Heim" <dan@xxxxxxxxxxxxx>
To: <az-observing@xxxxxxxxxxxxx>
Sent: Saturday, November 12, 2011 9:29 AM
Subject: [AZ-Observing] Re: Oscilloscope
In these litigious times students (at least in high schools) would not
be allowed to work with such high voltages, though the teacher could
demonstrate these things.
What bothers me more is that the important process of "measurement" is
so automated these days. Whether you're talking about voltage, force,
speed, temperature, or whatever, the measurement transducer is coupled
to a computer where software generates a graph of whatever quantity is
being measured. Sure, it's faster and more accurate, but I fear the
students are missing out on what "measurement" is all about ... choosing
a suitable "transducer," how to read the output of an analog or digital
device, data uncertainty, choice of graph axes, etc.
Dan Heim
On 11/12/2011 3:35 AM, DBogan3220@xxxxxxx wrote:
> A PC card for an osciloscope, oh how boring High Schools are no fun
> anymore. I wonder what they do when the students want to make a Jacobs
> ladder. or
> a classic tesla coil, too make your hair stand on end!
>
> Dwight
>
>
> In a message dated 11/11/2011 9:29:22 P.M. US Mountain Standard Time,
> dan@xxxxxxxxxxxxx writes:
> High schools these days (and colleges) mostly use the PC equivalent of
> an oscilloscope. Special card for a standard mobo slot. Gives all the
> usual I/O. Interfaces with spreadsheets and graphing apps. You might
> find a physics teacher somewhere who'd use it to demonstrate analog
> systems, or in place of that special (expensive) card.
>
>
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