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This is a fully functional, virtual slide rule, the sort used to land Neil and Buzz on the moon.

Have fun!!

1 posted on 01/26/2013 9:50:50 AM PST by Islander7
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To: Islander7

I don’t need this one. I’ve got my own in my office drawer.


2 posted on 01/26/2013 9:54:17 AM PST by raybbr (People who still support Obama are either a Marxist or a moron.)
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To: Islander7

My first year of college chemistry 101 we had a test where we had to compute the number of moles, of whatever it was and it was a simple problem. When I was attending Tech, at least that first year, they still used slide rules although those spanking new TI-55s were just coming on scene.

I still had the slide rule, and the problem was actually an exercize if you knew how to use one....add/subtract instead of multiply/divide using logarithms....

About the time I finished the problem, I heard a bunch of moans and glanced up around the lecture hall and I saw a bunch of TIs/equivalents with their LEDs blinking “EEEEEEEEEEEE....”

The prof set it up where they’d overflow....


3 posted on 01/26/2013 9:57:58 AM PST by Gaffer
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To: Islander7
I'm not a total slide rule obsessive, but I do have a small collection.

Pickett N3 ES
K&E Deci-Lon
K&E Log Log Duplex Decitrig
Hemmi 259D (the rule I used in school)
Faber-Castell 283N (IMO the coolest rule ever)

5 posted on 01/26/2013 10:06:16 AM PST by Notary Sojac (Ut veniant omnes)
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To: Islander7
I had a K+E in high school, carried it on my belt in its leather case. By my senior year, it was replaced by a Texas Instruments SR-52.

Not that either one did me much good. I flunked out of Differential Equations in college...

6 posted on 01/26/2013 10:07:57 AM PST by Yo-Yo (Is the /sarc tag really necessary?)
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To: Islander7

Or as my daughter would ask - is there an App for that, dad?


7 posted on 01/26/2013 10:12:44 AM PST by llevrok (Unlike Obama, at least Nero could play a fiddle.)
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To: Islander7

PLUS

EQUALS


8 posted on 01/26/2013 10:14:52 AM PST by TruthShallSetYouFree (July 4, 1776: Declaration of Independence. Nov 6, 2012: Declaration of Dependence. R.I.P. America.)
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To: Islander7

Really interesting. They were gone by the time I was in any school at all.

How did you make that?


9 posted on 01/26/2013 10:20:35 AM PST by wally_bert (There are no winners in a game of losers. I'm Tommy Joyce, welcome to the Oriental Lounge.)
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To: Islander7

By the time I went through school we weren’t taught to use these. Thanks for sparking a few minutes of interest... I can kind-of do basic multiplication now :P


10 posted on 01/26/2013 10:21:27 AM PST by TheZMan (Buy more ammo.)
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To: Islander7

That is TOO COOL


11 posted on 01/26/2013 10:22:32 AM PST by Pontiac (The welfare state must fail because it is contrary to human nature and diminishes the human spirit.)
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To: Islander7

Cool! Thanks.


12 posted on 01/26/2013 10:27:03 AM PST by SunTzuWu
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To: Islander7; potlatch; PhilDragoo

Great post! My Dad used his to design electrical equipment for the New York City and other subway systems, the monorails at Seattle and original Disneyland, and rail cars that dumped the cement for the Glen Canyon Dam in AZ. It was literally the last item he removed from his desk when he retired at age 80, though he’d switched to computer long before then.


13 posted on 01/26/2013 10:29:36 AM PST by ntnychik
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To: Islander7

I have a Pickett All-American hanging on the wall of my office. It is 4 feet long. When people ask me about it I tell them I use it for really big problems.


14 posted on 01/26/2013 10:29:58 AM PST by Kirkwood (Zombie Hunter)
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To: Islander7; All

I don’t have a slide rule, but do have a Curta Type II calculator in its original box with original instructions thta I bought in early 1970 to do estate and tax work. In 1971 the first of the electronic calculators came out, making my Curta instantly obsolete, so I decided to keep it as a curio that might someday be very valuable. Right now it’s worth about $1,300 vs. the original price of about $150.00.


15 posted on 01/26/2013 10:34:48 AM PST by libstripper
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To: Islander7

I still have my K&E log-log-decitrig that I had in the 50s in college, I still carry it in my glove box in my pickup.


16 posted on 01/26/2013 10:36:37 AM PST by dalereed
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To: Islander7

Why would I want to be tied to a computer, when my Post slide rule is right here in it’s leather case on my belt?


17 posted on 01/26/2013 10:46:03 AM PST by norwaypinesavage (Galileo: In science, the authority of a thousand is not worth the humble reasoning of one individual)
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To: Islander7
I got a slide rule as a gift from an uncle who was an aeronautical engineer @ McDonnel Douglas in St Louis... I had just barely learned to use it to do simple multiplication when it was confiscated by a math teacher while I was playing with it in class. I never did get it back from that old hag!

Mark

19 posted on 01/26/2013 10:52:02 AM PST by MarkL (Do I really look like a guy with a plan?)
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To: Islander7

BTW, AWESOME page!

Mark


20 posted on 01/26/2013 10:53:21 AM PST by MarkL (Do I really look like a guy with a plan?)
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To: Islander7
Meh. still have my old K&E Duplex Decitrig here, though I am far too rusty to do much like I used to.

Like others have said, I resisted calculators until the first chemistry test where all the calculator users were done and I was still whizzing away on the sliderule. I saw the light and never looked back.

22 posted on 01/26/2013 11:04:46 AM PST by doorgunner69
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To: Cboldt

pingus!


23 posted on 01/26/2013 11:05:56 AM PST by Fester Chugabrew (double trouble, here we come)
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To: Islander7

Back around 1966 I took a class on slide rule. I recall the instructor had a huge one on the wall above the chalk board. I had a cheap plastic one then later got another a much more expensive tho still plastic one. I probably still have them somewhere.

A few months ago I found the first calculator I ever bought. It was a Sears (electronic slide rule). This would have been around 1973. I have at least a dozen high end calculators which use LCD display, and they will run for a very long time before the batteries go dead.

The old Sears one uses 4 AA batteries but it has a beautiful green display. I had quit using it because it ran through batteries fairly quickly. Now it is the only one I use as about the only use it gets is to balance my checkbook and it will run for months just doing that.

40 years old and it still works perfectly.


24 posted on 01/26/2013 11:07:49 AM PST by yarddog (One shot one miss.)
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