On 3/30/2010 6:01 PM, Nonny wrote:

"Swingman" wrote in message
...
On 3/30/2010 4:07 PM, Keith Nuttle wrote:

As for technology in the class room while there are negatives, there are
all so some strong positives. If I have a computer in physical chemistry
I may have a better understanding of how the various equation performed.

I had a computer ... "me", with a slide rule.

They're becoming forgotten. Slide rules put man on the moon. Back in HS
and college, the classes like Physics and Chem had a half bushel basket
by the door with school slide rules for the kids without their own.

When I was in High School in the late 50's I paid 25 dollars for a cheap
slide rule. There was no way I could have afforded the expensive ones.

Today when you go to flea markets or antique stores you can pick up the
most expensive for 5 or 10 dollars/ with case.

My favorite slide rule was the circular slide rule. For some spectra
conversion in IR or UV you could make the calculation on the circular
slide rule faster that any calculator today.