Duodecimal Hands
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πŸ‘€︎ u/abbbbbbbywhee
πŸ“…︎ Nov 08 2021
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I wish the world switched to the 13 month fixed calendar and also a the Duodecimal (base 12) number system
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πŸ‘€︎ u/CardNumberIX
πŸ“…︎ Jul 20 2021
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duodecimal rule
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πŸ‘€︎ u/anarcho-hornyist
πŸ“…︎ Oct 16 2021
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TIL of the duodecimal or dozenal system, a base-12 system for numbers which some argue is better fit to be our main numerical structure than base-10 en.wikipedia.org/wiki/Duo…
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πŸ‘€︎ u/ayyndrew
πŸ“…︎ Feb 13 2021
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Losing symbolic meaning behind numbers in a duodecimal system?

Like the title says, do you guys care if some common symbolic numbers are lost in translation in a duodecimal system?

For example 13 (which is bad luck because usually the 13th inclusion causes misfortune - like during the Last Supper when Judas the traitor is the 13th member to sit at the table or how its unlucky when 13 full moons appear in a year) becomes 11 in duodecimal, so it becomes less intuitive for a reader to understand that 11 means bad luck. Another example is 108 being a sacred number in eastern religion now becomes 90, which is not as easily picked up on.

I know that some numbers like 666 (the beast's number) or 777 (triple 7 = triple luck) can be kept because their triple numbered meaning is more important than the numerical value itself. I also understand that the beauty behind making your own conlang/numeral system is that you can make up your own meaning behind them, but I still like the idea of keeping some naturally intuitive symbolic numbers because its so ingrained in our society.

Perhaps I'm overthinking it, but I'd love to hear what your thoughts are on this!

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πŸ‘€︎ u/One-ManParade
πŸ“…︎ May 15 2021
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a fowl duodecimal
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πŸ‘€︎ u/Obtuse_Mongoose
πŸ“…︎ Jun 19 2021
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πŸ“…︎ Aug 25 2021
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Do digital clocks (and their duodecimal system) also affect the way you interpret decimal numbers between 12 and 20?

Hallo everybody,

I have recently been noticing that I, more often than not, mix the decimal and duodecimal system when it comes to interpreting integers between 12 and 20.
An example: When I look at the hours it takes to travel from my hometown to Rome and see that it takes 16 hours by car, I might interpret this as being less than 15 hours. Not such that I think that the integer 16 is less than 15 (if the numbers appear next to each other I will never think 16 is less than 15), but I interpret 16 as being 12+4 (from the duodecimal system), but since I somehow unconsciously know that I am using the decimal system I replace the 12 with 10, meaning 16 or 12+4 becomes 10+4 or 14, which is less than 15.
I feel like this problem only occurs when there is a comparison between the visual representation of an integer between 12-20 and the notion in my head of integers between 12-20. I feel like this might be caused by the constant use of digital clocks on smartphones and other electronic devices.

My questions are:

  1. Does anybody else experience this?
  2. Does anybody know any research on this topic or maybe know if this is a well-known effect (and maybe knows its name)?
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πŸ‘€︎ u/HiImBono
πŸ“…︎ May 21 2021
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A reverse polish calculator for duodecimal (base 12) v.redd.it/dvrjmpgd9pw61
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πŸ‘€︎ u/timeopochin
πŸ“…︎ May 02 2021
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Two versions of duodecimal cursive numerals. They are true cursive, meaning that while using these you could write compound numbers with one stroke.
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πŸ‘€︎ u/Mapafius
πŸ“…︎ Nov 26 2020
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Decimal and duodecimal systems history

Hi, recently I found out about duodecimal system and its superiority to decimal system. I started to wonder why and when dozenal system was abandoned if it was used alongside decimal system (e.g. in trade) for many years in many different cultures (you can find dozen, gross, etc. in most of the european languages)?

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πŸ‘€︎ u/Thisfishman
πŸ“…︎ Sep 01 2020
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duodecimal numbering systems

I was wondering if it would be possible to add duodecimal / base-12 numbering to the number patterns. Thanks!

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πŸ‘€︎ u/ihavedna
πŸ“…︎ Oct 25 2020
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Duodecimal gang rise up!
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πŸ‘€︎ u/after_brillig
πŸ“…︎ Dec 10 2019
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Counting with your hands in duodecimal

Duodecimal has always been interesting to me, and the arguments in favour of it are pretty strong (though unfortunately not strong enough to overcome the cost of actually implementing it in society because of how ingrained decimal is in all of our computing systems and measurement systems and so on). But one argument I've always found pretty weak is the suggested means by which you count on your hands using the segments of your fingers. It just seems overly complicated, maybe good for mathematicians or math nerds in general, but not really well suited for the average person.

So I was thinking, why not just use the normal method of counting on your hands, but in a kind of tally fashion? By which I mean, a closed fist represents zero, you count 1-5 on your fingers as normal, and then on 6 you bring your fingers and thumb to create a flat palm, in the same way the final mark of a full tally connects all the previous marks counted out. Repeat with the other hand and bam, a simple and easy way to count to twelve. Thoughts?

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πŸ‘€︎ u/AutopoieticBeing
πŸ“…︎ Aug 21 2019
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Why I realized the power of duodecimal and switched

Eventually it got me

I used to be a sworn Hexadecimal advocate, but I did some recomparisons and I realize why so many have advocated for this base. It just simply is easiest to work with, dozen is a superior highly composite number for something so small, it can be counted on the hand, its easily divisible. Hexadecimal is useful, and I am committed to multi-base fluency, but heres what stood out

I filled out the multiplication table for duodecimal, aka dozenal, without having consulted ANY table beforehand.

Using simple laws of the multiplication table, I was able to fill out the entire table from procedure alone. I didn't need to memorize ANY values. It really is that easy, and dozenal allows you to still represent a conveniently large amount of numbers, it exists at the perfect line between bases too big and too small, the Goldilocks zone. It's no wonder that William James Sidis, purportedly America's smartest man ever, advocated for this base. It just is common sense and I've had my head in the sand like an ostrich the whole time.

My multiplication table (I use half because writing twice is redundant and it allows you to keep track of how many multiples you need using the triangular number formula). Seriously, I can do this every time without consulting ANYTHING.

1 2 3 4 5 6 7 8 9 X E 10
4 6 8 X 10 12 14 16 18 1X 20
9 10 13 16 19 20 23 26 29 30
14 18 20 24 28 30 34 38 40
21 26 2B 34 39 42 47 50
30 36 40 46 50 56 60
41 48 53 5X 65 70
54 60 68 74 80
69 76 83 90
84 92 X0
X1 E0
100

Needlessly said, I've already joined this subreddit. And PS, if you don't like my notation, I've made my own from scratch, it's for me and I like it. I've tried doing the special character thing on keyboard but I'm stuck getting my custom characters (which were easy to make) on the platform. I use Windows.

When we teach kids multiplication, we should emphasize patterns in multiplication over rote memorization because it allows multiplication to become the intuitive process it actually is.

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πŸ‘€︎ u/marbor496
πŸ“…︎ Dec 29 2019
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Is duodecimal metric/SI possible ?

Metric/SI's only downside is the heavy usage of decimal. Will duodecimal metric/SI works? Or is TGM better?

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πŸ‘€︎ u/mingmaomak
πŸ“…︎ Aug 10 2019
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TIL there is a base-12 counting system called "duodecimal" or "dozenal" that can be argued as a superior system for everyday calculations. en.wikipedia.org/wiki/Duo…
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πŸ‘€︎ u/DoesBoKnow
πŸ“…︎ May 29 2016
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derry unminimizing uncontortedly duodecimals

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... keep reading on reddit ➑

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πŸ‘€︎ u/stroke_bot
πŸ“…︎ Nov 19 2019
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r/dozenal - subreddit to discuss the usage of dozenal (aka duodecimal or base 12) number system reddit.com/r/dozenal
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πŸ‘€︎ u/mingmaomak
πŸ“…︎ Oct 04 2019
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TIL of the duodecimal system of counting that uses base 12 instead of 10 io9.gizmodo.com/5977095/w…
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πŸ‘€︎ u/radioredhead
πŸ“…︎ Mar 17 2017
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012 Duodecimal builds?

I recently got 012 working online on emulator so I can play my friend again, problem is I’m really bad with making builds for each character. I don’t know what works for them or even what a good overall build that everyone can use would be.

I remembered finding builds in the character discussions on the dissidia community forums a long time ago but it seems that place got nuked a few years back so nothings there anymore.

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πŸ‘€︎ u/Maya_Kimura
πŸ“…︎ May 30 2018
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I believe a duodecimal (base-12) over our decimal (base-10) number system would make mathematics simpler. CMV.

My main gripe with the a base-10 system is that 10 is only divisible by two numbers (other than 1 and itself), 2 and 5. This makes the calculations of thirds and quarters more cumbersome du to the need to use fractions/decimals. This is especially bad in the case of 1/3 since it can only be represented by a recurring decimal (0.33333333...). Additionally, it can only be halved once before you have to stop using whole numbers (10/2 = 5, 5/2 = 2.5 etc.).

Compare this to a base-12 system, 12 is divisible by four numbers other than 1 and itself: 2, 3, 4, and 6. This would make the calculation of thirds a lot simpler since 12/3 = 4, a whole number. 12 can also be halved twice, to make whole number halves (6) and quarters (3).

Aside from pure ease of calculation and number handling, I believe it would make the process of learning mathematics a lot easier since the concepts of division would be more intuitive.

Additionally it would ease the discrepancy between our timing system, which has 24 hours in a day and 60 minutes in an hour, 12 is a factor of both. 10 doesn't fit AT ALL with our timing system and leads to common errors in learning, such as assuming 140 minutes is one hour and 40 minutes etc.

You might be thinking "HEY but we have 10 fingers on our hands and this is one the most useful tools that kids use to learn how to count!" True. But this can be remedied by using our knuckle-divisions on our the four fingers of each hand creating 12 easily identifiable counting helpers!

So yeah there's my argument. CMV.

EDIT: spelling

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πŸ‘€︎ u/jmerlinb
πŸ“…︎ Dec 22 2013
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Dozenal Clock will show current time in duodecimal system. windows10gadgets.pro/cloc…
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πŸ‘€︎ u/Sofi_A
πŸ“…︎ Feb 02 2018
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Does "eleven" and "twelve" indicate a duodecimal number system?

In english and also german the "suffix" -teen (/-zehn in german) only begins at the number 13 while 11 and 12 which are already written with two numerals in our base 10 system still have a "suffixless" name like all the others from 0-10. Might this mean that when the names for these numbers developed the culture that used them had a base 12 system?

The same question could also be asked about french with 13, 14, 15 and 16 also being like that and only 17(dix-sept) using the dix-(ten) prefix.

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πŸ‘€︎ u/Aebor
πŸ“…︎ Sep 19 2018
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TIL there is a push to move away from the Base 10 math system we use today into a Base 12 system (Duodecimal or Dozenal System). One big case, 10 is only divided by 2 and 5 (excluding 1 and itself) while 12 is divided by 2, 3, 4, and 6; simplifying fractions. io9.gizmodo.com/5977095/w…
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πŸ‘€︎ u/Panwall
πŸ“…︎ Jun 01 2017
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Proposal: duodecimal system
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πŸ‘€︎ u/seweli
πŸ“…︎ Apr 19 2020
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Dissidia 012: Duodecim Final Fantasy on PC

Everyone really expects this Remaster.

Yes, i played "DISSIDIA FINAL FANTASY NT" but it's not the same.

Square Enix please.

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πŸ‘€︎ u/Ysida
πŸ“…︎ Jan 13 2022
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forget politics , all in favour of duodecimal system being standardsized say aye
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πŸ‘€︎ u/funfactwealldie
πŸ“…︎ Mar 08 2020
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TIL days are divided in two 12 hours periods because duodecimal number system was used by the Babylonians. They used their thumbs to count on their finger bones (3 on each of the 4 remaining fingers). en.wikipedia.org/wiki/Duo…
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πŸ‘€︎ u/Antoine76
πŸ“…︎ Dec 29 2014
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TIL that a base-12 duodecimal system is actually more mathematically elegant than a base-10 decimal system. princeton.edu/~achaney/tm…
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πŸ‘€︎ u/Parmenidesides
πŸ“…︎ Aug 22 2013
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ELI5 : What are the advantages of a duodecimal system ? Would it be worth to change the way we usually count ?
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πŸ‘€︎ u/BlackRedber
πŸ“…︎ Mar 10 2017
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TIL That the Sumerians used the duodecimal numeric system, counting the joints from each finger in both hands, excluding the thumbs and that's why we split the day in 24 hours (12x2). livescience.com/44964-why…
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πŸ‘€︎ u/y353
πŸ“…︎ May 13 2015
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Best birthday present ever. Oh and I guess duodecim's cool too. reddit.com/gallery/ri3sfh
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πŸ‘€︎ u/mexicantails
πŸ“…︎ Dec 16 2021
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Duodecimal to a great gross
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πŸ‘€︎ u/Omni314
πŸ“…︎ May 13 2014
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If we had a Duodecimal (12-base) number system, would the prime numbers be in the same place?
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πŸ‘€︎ u/CaptainRunon
πŸ“…︎ Feb 09 2013
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