General Discussion

central scrutinizer

(12,654 posts)

37. I had a round one in high school

Reply to Are_grits_groceries (Original post)

Wed Mar 5, 2014, 04:59 PM

Mar 2014

With the C and D scales on the outside, you could get better accuracy than with a straight one because the circumference was greater than 10 or 12 inches. I have several that I bring to my college algebra class whenever we learn logarithms. I also pass out log tables and have students do complicated calculations involving fifth roots using only paper and pencil. Really makes the students understand scientific notation and properties of exponents.

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How many of you used one of these to solve math problems? [View all] Are_grits_groceries Mar 2014 OP

All through my college days. I guess I had one in high school as well. Mine sinkingfeeling Mar 2014 #1

K&E Log log duplex decitrig n/t Fumesucker Mar 2014 #2

Mine was a Pickett. The nice yellow metal one. MineralMan Mar 2014 #26

I've got one as well. cloudbase Mar 2014 #65

I did SarasotaDem Mar 2014 #3

a simple ruler or measuring tape would have sufficed! /NT sdfernando Mar 2014 #9

Not unless it had some log scales. nt oldhippie Mar 2014 #13

Don't need log scales to calculate your wang :) /nt sdfernando Mar 2014 #33

that depends green917 Mar 2014 #66

LOL SarasotaDem Mar 2014 #89

During my first two years of college, even if hand-held calculators already existed. Mass Mar 2014 #4

I own one. LumosMaxima Mar 2014 #5

Yes and I think I have that very slipstick and case at home. n/t TexasProgresive Mar 2014 #6

Always wanted to learn how to used those Boom Sound 416 Mar 2014 #7

Nope, never went beyond algebra in H.S. malthaussen Mar 2014 #8

I was lucky to even have passed algebra. RebelOne Mar 2014 #60

Oh, algebra gave me fits. malthaussen Mar 2014 #62

Never did get my head round one of those. dipsydoodle Mar 2014 #10

Is that a ruler? rdharma Mar 2014 #11

How about this? PowerToThePeople Mar 2014 #12

If you think about it, those devices helped get us to the moon. A HERETIC I AM Mar 2014 #14

True Are_grits_groceries Mar 2014 #17

Didn't think you were! A HERETIC I AM Mar 2014 #19

... Are_grits_groceries Mar 2014 #30

the round one was even cooler, endless, in a way. ChairmanAgnostic Mar 2014 #24

Pilots use the round ones. Manifestor_of_Light Mar 2014 #31

You mean the venerable E6-B? A HERETIC I AM Mar 2014 #39

Wow. Mine was nowhere as cool. ChairmanAgnostic Mar 2014 #46

Not quite that complicated but it did have the flat part running through it. Manifestor_of_Light Mar 2014 #48

That reminds me of this ... dawg Mar 2014 #55

That's just a prehistoric Rodeo Belt Buckle! n/t A HERETIC I AM Mar 2014 #59

I had two Lithos Mar 2014 #56

Had one but most of the time I could do it in my head faster. hobbit709 Mar 2014 #15

I learned how to use it Savannahmann Mar 2014 #16

I mostly used log tables, but I found slide rules fascinating (nt) Nye Bevan Mar 2014 #18

Pickett or Post? Pickett or Post? I just can't decide. Scuba Mar 2014 #20

I'm definitely a Pickett man, myself. MineralMan Mar 2014 #23

That was the first big decision I had to make ..... oldhippie Mar 2014 #36

Me. being a plaintiff's lawyer I still use it to divide everything by 33.3% ChairmanAgnostic Mar 2014 #21

Totally DUzy worthy! Brother Buzz Mar 2014 #27

That's the only fraction lawyers know---one-third, ha ha!! Manifestor_of_Light Mar 2014 #38

good to hear. ChairmanAgnostic Mar 2014 #52

I still have mine, same as the one in the picture .... oldhippie Mar 2014 #22

My husband used the slide rule every day of his ScreamingMeemie Mar 2014 #25

I graduated from that to the Sinclair build-it-yourself calculator dickthegrouch Mar 2014 #28

My Physics class in HS was the very last one to learn to use a SR jimlup Mar 2014 #29

I still have several, including a lovely circular one struggle4progress Mar 2014 #32

I had an antique magnesium one used by granddad. It was stolen, thank god. I looked goofy with Hoyt Mar 2014 #34

Still have two of them! Uben Mar 2014 #35

I had a round one in high school central scrutinizer Mar 2014 #37

Raises hand. n/t Cleita Mar 2014 #40

I wish. I couldnt afford one of those. I think mine was a Post brand. rhett o rick Mar 2014 #41

I solved the problem of solving math problems by avoiding math classes. Tierra_y_Libertad Mar 2014 #42

Oh yeah! Aldo Leopold Mar 2014 #43

My piano and violin teacher taught me how to use one. Manifestor_of_Light Mar 2014 #44

No, have a Pickett Model N4-ES Vector-Type Log Log Dual-Base Speed Rule FarCenter Mar 2014 #45

I've still got two of them sitting down in the basement starroute Mar 2014 #47

What the hell is that thing? Rex Mar 2014 #49

In high school, yes. Adrahil Mar 2014 #50

Wish i could remember where mine is mainer Mar 2014 #51

In both Junior and High School and University. longship Mar 2014 #53

I think I have that one's twin brother The Traveler Mar 2014 #54

Still have one with my old drafting tools. Spitfire of ATJ Mar 2014 #57

My dad did. nt Sarah Ibarruri Mar 2014 #58

Nope. Did use calculators before they all went to Silicon Heaven, though 1000words Mar 2014 #61

Still have it, along with the drafting tools. Autumn Mar 2014 #63

How many of you used one of these to solve math problems? The CCC Mar 2014 #64

I still have mine. The Velveteen Ocelot Mar 2014 #67

I still have mine. n/t ColesCountyDem Mar 2014 #68

Junior High, High School, Yes ProfessorGAC Mar 2014 #69

Giant slide rules rule sorcrow Mar 2014 #77

Solve? Well solve is maybe a bit too far rurallib Mar 2014 #70

I had one of those, but I never used it to solve a math problem SouthernLiberal Mar 2014 #71

good question Chaco Dundee Mar 2014 #72

Used one in high school chemistry BooBrown Mar 2014 #73

Slip-stick with talcum powder for FAST calculations!! PCIntern Mar 2014 #74

Me.... ewagner Mar 2014 #75

I don't even know what that is. Vashta Nerada Mar 2014 #76

It's a slide rule. A lot of people still use them. I was kind of shocked that OP thinks they're old ScreamingMeemie Mar 2014 #78

Mine was yellow. I've still got my father's in its original case. TrogL Mar 2014 #79

I have my brother's. never used it nadinbrzezinski Mar 2014 #80

Mine had a custom belt holster. idendoit Mar 2014 #81

Ours were made of stone, 5X Mar 2014 #82

Yes, a long time ago Jack Rabbit Mar 2014 #83

I used one. I also used an abacus. Jim Lane Mar 2014 #84

What a great story. idendoit Mar 2014 #85

Alas, only the memories remain. Jim Lane Mar 2014 #87

No. kentauros Mar 2014 #86

avoided it like the plague spanone Mar 2014 #88