Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

"Simulated Pickett N4-ES Slide Rule". (For all you egg heads.)
AntiQuark ^ | Feb 6, 2005 | Derek

Posted on 01/26/2013 9:50:45 AM PST by Islander7

Following up on my original post, I've scanned and virtualized my Pickett N4-ES Vector Type LOG LOG DUAL BASE SPEED RULE. That's the most complicated rule that Picket produced. It has 34 scales, which is good, because in the world of slide rule collecting, bigger is better. ().

(Excerpt) Read more at antiquark.com ...


TOPICS: Education; History; Reference; Science
KEYWORDS: education; history; science; sliderule; stringtheory; xplanets
Navigation: use the links below to view more comments.
first 1-5051-59 next last
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
[ Post Reply | Private Reply | View Replies]

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.)
[ Post Reply | Private Reply | To 1 | View Replies]

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
[ Post Reply | Private Reply | To 1 | View Replies]

To: raybbr
In HS, everyone had to get a slide rule..of course, this was in 1961. I had a K&E log-log-decitrig..got pretty good at using it, too..

And somewhere in the basement, I think I still have a Frieden. Wonder if it's worth anything..or worth enough to did around for.

4 posted on 01/26/2013 10:03:25 AM PST by ken5050 ("One useless man is a shame, two are a law firm, three or more are a Congress".. John Adams)
[ Post Reply | Private Reply | To 2 | View Replies]

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)
[ Post Reply | Private Reply | To 1 | View Replies]

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?)
[ Post Reply | Private Reply | To 1 | View Replies]

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.)
[ Post Reply | Private Reply | To 1 | View Replies]

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.)
[ Post Reply | Private Reply | To 1 | View Replies]

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.)
[ Post Reply | Private Reply | To 1 | View Replies]

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.)
[ Post Reply | Private Reply | To 1 | View Replies]

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.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Islander7

Cool! Thanks.


12 posted on 01/26/2013 10:27:03 AM PST by SunTzuWu
[ Post Reply | Private Reply | To 1 | View Replies]

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
[ Post Reply | Private Reply | To 1 | View Replies]

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)
[ Post Reply | Private Reply | To 1 | View Replies]

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
[ Post Reply | Private Reply | To 1 | View Replies]

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
[ Post Reply | Private Reply | To 1 | View Replies]

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)
[ Post Reply | Private Reply | To 1 | View Replies]

To: TruthShallSetYouFree
The answer is: ninety nine and a half!
18 posted on 01/26/2013 10:51:40 AM PST by Boogieman
[ Post Reply | Private Reply | To 8 | View Replies]

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?)
[ Post Reply | Private Reply | To 1 | View Replies]

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?)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ntnychik; Islander7; dixiechick2000; PhilDragoo

Your dad had an interesting history. My dad was a Chemical Engineer and I had one of his slide rulers. It was a short one with a suede leather pouch. I ended up giving it to my youngest brother - who is also a Chemical Engineer.


21 posted on 01/26/2013 10:59:33 AM PST by potlatch
[ Post Reply | Private Reply | To 13 | View Replies]

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
[ Post Reply | Private Reply | To 1 | View Replies]

To: Cboldt

pingus!


23 posted on 01/26/2013 11:05:56 AM PST by Fester Chugabrew (double trouble, here we come)
[ Post Reply | Private Reply | To 1 | View Replies]

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.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Notary Sojac

>>Hemmi 259D (the rule I used in school)<<

My was a Hemmi 257 ChE slide rule. I had to get permission to use it on tests. Instead of log scales on back, it had atomic weights & numbers, pressure conversions and temperature conversions.


25 posted on 01/26/2013 11:10:30 AM PST by NTHockey (Rules of engagement #1: Take no prisoners)
[ Post Reply | Private Reply | To 5 | View Replies]

To: Notary Sojac

>>Hemmi 259D (the rule I used in school)<<

Mine was a Hemmi 257 ChE slide rule. I had to get permission to use it on tests. Instead of log scales on back, it had atomic weights & numbers, pressure conversions and temperature conversions. I still have it in a leather case. It also has a magnifier to read thre and four places.


26 posted on 01/26/2013 11:12:04 AM PST by NTHockey (Rules of engagement #1: Take no prisoners)
[ Post Reply | Private Reply | To 5 | View Replies]

To: Kirkwood

Like


27 posted on 01/26/2013 11:16:04 AM PST by al baby (Hi Mom)
[ Post Reply | Private Reply | To 14 | View Replies]

To: TruthShallSetYouFree
50/6.5 = 7.7(-0.0076923) or thereabout.

What the Pickett leads to in engineering and science is quick and critical thinking, not simply quasi-precise numbers.

28 posted on 01/26/2013 11:25:59 AM PST by imardmd1 (An armed society is a polite society -- but dangerous for the fool --)
[ Post Reply | Private Reply | To 8 | View Replies]

To: libstripper
When I was in college (grad.1972), the business dept got an “electronic” calculator. Cost $400. All it could do was add/subtract/multiply/divide AND square roots. Heaven!

The real kicker was that only grad students and faculty were allowed to use it.

29 posted on 01/26/2013 11:31:19 AM PST by llevrok (Unlike Obama, at least Nero could play a fiddle.)
[ Post Reply | Private Reply | To 15 | View Replies]

To: Islander7

I picked up a k&e log log duplex in the original box with the books for a song at a yard sale I’ve been teaching myself as they were gone by the time I arrived it was all ts35s. Beautiful instrument. I told the wife to buy any she finds when she’s out yardsaling


30 posted on 01/26/2013 12:04:17 PM PST by reed13k (For evil to triumph it is only necessary for good men to do nothing.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Islander7

My Dad taught slide rule at University. I could use the big one when I was about 4. It was huge and on a cart rolling frame so you could turn it over to show the class both sides without turning the cart.

I started university with a slide rule but you just could not keep up in class against the new TI55 and HP21.

Dad could beat just about any calculator and get awfully close to the same answer. Of course he also did Trachtenberg math and could work most problems in his head.


31 posted on 01/26/2013 12:17:28 PM PST by Sequoyah101
[ Post Reply | Private Reply | To 1 | View Replies]

To: wally_bert

I didn’t make it. Stumbled across it on the net.


32 posted on 01/26/2013 12:20:54 PM PST by Islander7 (There is no septic system so vile, so filthy, the left won't drink from to further their agenda)
[ Post Reply | Private Reply | To 9 | View Replies]

To: Islander7
I never cared much for Picket or K&E slide rules, they always felt "gritty" when you manipulated the slide and cursor. Most of my ME colleagues used 10" Post Versalog slide rules as did I. K&E and Picket were made of aluminum whereas Post used laminated bamboo. The bamboo had natural oils which made manipulating the slide as smooth as silk. I carried 5" and 10" Versalog slide rules until I bought an HP 45 calculator. I still keep both around. They do something the calculators don't and that is they don't conceal answers with 15 digits of false precision. Slide rules force you to put your data in "standard form" and cause you to think about the precision of your input. If you are working with data that is known to +/- 10% accuracy there is no point in calculating to 15 digit accuracy as your answer will be no better then +/- 10%.

They used to teach courses in "estimating", I suspect that is no longer true.

Regards,
GtG

PS There was one guy in my nomography and empirical equations class who had a 15 cycle circular slide rule. It had C & D scales in a circular track surrounding a spiral set of scales they were effectively some 20 feet long. The outer pair could calculate to five significant digits which you used to find which cycle to read on the inward spiral. There is always somebody like that in every math course!

33 posted on 01/26/2013 12:56:50 PM PST by Gandalf_The_Gray (I live in my own little world, I like it 'cuz they know me here.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Gandalf_The_Gray

My dad, who was a civil engineer, got an award from the Navy Department for inventing a type of circular slide rule for some sort of task the Navy had.


34 posted on 01/26/2013 1:55:45 PM PST by PUGACHEV
[ Post Reply | Private Reply | To 33 | View Replies]

To: Gandalf_The_Gray; Islander7
I bought a Dietzgen slide rule for $20 from the school store. I always regretted not spending the extra $10 it would have cost for a Post - but then, in my defense I did ask what was better about the Post. But it was foolish of me to ask a clerk in a school store (who in retrospect probably could not even multiply with a slide rule) instead of asking someone who actually used a Post slide rule.
My brother, who’s severely physically handicapped, used a circular slide rule. It had a pair of radial indicator lines whose angle represented the ratio between the two numbers to which the two were set. I really never learned how to use it . . .

35 posted on 01/26/2013 1:57:26 PM PST by conservatism_IS_compassion (The idea around which “liberalism" coheres is that NOTHING actually matters except PR.)
[ Post Reply | Private Reply | To 33 | View Replies]

To: conservatism_IS_compassion

Bookmark


36 posted on 01/26/2013 7:04:30 PM PST by publius911 (Look for the Union Label -- then buy something else)
[ Post Reply | Private Reply | To 35 | View Replies]

To: KevinDavis; annie laurie; Knitting A Conundrum; Viking2002; Ernest_at_the_Beach; Mmogamer; ...

Thanks Islander7.
 
X-Planets
· join · view topics · view or post blog · bookmark · post new topic · subscribe ·
Google news searches: exoplanet · exosolar · extrasolar ·

37 posted on 01/26/2013 9:37:45 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
[ Post Reply | Private Reply | View Replies]

To: 6SJ7; AdmSmith; AFPhys; Arkinsaw; allmost; aristotleman; autumnraine; Beowulf; Bones75; BroJoeK; ...

Thanks Islander7.

· String Theory Ping List ·
Sorry we re open
· Join · Bookmark · Topics · Google ·
· View or Post in 'blog · post a topic · subscribe ·


38 posted on 01/26/2013 9:37:45 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
[ Post Reply | Private Reply | View Replies]

To: Islander7; brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; ...

Thanks Islander7. An ‘extra, extra’ to APoD members.


39 posted on 01/26/2013 9:37:45 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
[ Post Reply | Private Reply | View Replies]

To: Islander7; brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; ...

Thanks Islander7. An ‘extra, extra’ to APoD members.


40 posted on 01/26/2013 9:38:36 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
[ Post Reply | Private Reply | View Replies]

To: 6SJ7; AdmSmith; AFPhys; Arkinsaw; allmost; aristotleman; autumnraine; Beowulf; Bones75; BroJoeK; ...

Thanks Islander7.

· String Theory Ping List ·
Sorry we re open
· Join · Bookmark · Topics · Google ·
· View or Post in 'blog · post a topic · subscribe ·


41 posted on 01/26/2013 9:38:36 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
[ Post Reply | Private Reply | View Replies]

To: Islander7

Somewhere in the house is a small, simple slide rule: it is round.

I do not know the manufacturer’s name, but it belonged to my dad, who was a nuclear engineer. He had a collection at one time, but I don’t what he did with them.


42 posted on 01/26/2013 9:45:44 PM PST by SatinDoll (NATURAL BORN CITZEN: BORN IN THE USA OF CITIZEN PARENTS.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Boy, talk about dull. Saturday night, 11 PM, and I’m reading a thread about slide rules. I’ve got a couple around here somewhere... and there is my Dietzgen 1734 - on my dresser. Still slick after 45 years. Down the hall to the computer “lab” and there’s it’s replacement, an HP 67. I am not going to fire up the 8088 or 286.


43 posted on 01/26/2013 11:01:19 PM PST by kitchen (Due to the increased price of ammo, do not expect a warning shot.)
[ Post Reply | Private Reply | To 39 | View Replies]

To: Islander7

Sad to say I used one sort of like this one (K-E Decitrig).


44 posted on 01/26/2013 11:03:24 PM PST by Mike Darancette (Soylent Green is Boomers)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Islander7; All
This is a fully functional, virtual slide rule, the sort
used to land Neil and Buzz on the moon... Have fun!!
hmmm....I rather use an Curta, (somewhat easier to use)...

http://www.vcalc.net/cu.htm

45 posted on 01/26/2013 11:11:29 PM PST by skinkinthegrass (who'll take tomorrow,spend it all today;who can take your income,tax it all away..0'Bozo man can :-)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ken5050
I had a K&E log-log-decitrig..got pretty good at using it, too..
had one...lost in tech. drafting school....
bought ti-58/rom chip (what a piece of cr@p)/
then got hp-33/11/15/28/48sx/49g/hp-50g.

46 posted on 01/26/2013 11:20:53 PM PST by skinkinthegrass (who'll take tomorrow,spend it all today;who can take your income,tax it all away..0'Bozo man can :-)
[ Post Reply | Private Reply | To 4 | View Replies]

To: libstripper
..but do have a Curta Type II calculator in its original box with original instructions
that I bought in early 1970 to do estate and tax work. In 1971 the first of theelec-
tronic 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.
WOW! ..You have one...*thumbs up*...
think of all the Techie doomsday guys out there
would give for it...worthy of black/gun smithing skills.

47 posted on 01/26/2013 11:31:07 PM PST by skinkinthegrass (who'll take tomorrow,spend it all today;who can take your income,tax it all away..0'Bozo man can :-)
[ Post Reply | Private Reply | To 15 | View Replies]

To: SunkenCiv

Bfl - I need to send that to a Greek friend.


48 posted on 01/26/2013 11:36:30 PM PST by FreedomPoster (Islam delenda est)
[ Post Reply | Private Reply | To 38 | View Replies]

To: SatinDoll
probably a Circular Calculator that came w/ a design manual,
Effects of Nuclear Blast. real handy.

49 posted on 01/26/2013 11:39:45 PM PST by skinkinthegrass (who'll take tomorrow,spend it all today;who can take your income,tax it all away..0'Bozo man can :-)
[ Post Reply | Private Reply | To 42 | View Replies]

To: Professional Engineer; El Gato

Things that make you go Hmmm

Regards

alafa6 ;>}


50 posted on 01/26/2013 11:43:22 PM PST by alfa6
[ Post Reply | Private Reply | To 1 | View Replies]


Navigation: use the links below to view more comments.
first 1-5051-59 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson