# The Perfect Science Clock For Smart Geeks [Pic]

Submitted by: fancylad 7 years ago in
156

For everyone else, just expect to be late to everything...
156
Male 25,417
crazy!
Male 315
I`ve learned more about math in this thread than my Algebra, Geometry, Algebra II and Pre-Calculus classes combined.

That was a lie.
I never took Algebra.
Male 25
you can buy this clock on thinkgeek.com
Male 68
@jendrian:
AM or PM?
Male 2,516
It`s 120!/(2!3!) with 5*Sum_{n=0}^{inf} 2^{-i}, pretty early huh?
Male 440
sooo...what time is it
Male 12,138
Frig me gently, I had no idea we had so many resident math nerds here at IAB. And many unfamiliar users who stay quiet through the standard-fare religious, political and ideological flame wars, but who come out gunning at the first hint of a bit of math.

Don`t get me wrong, I`m not poking fun, I love this.

IAB is a complex community, with many undercurrents and subcultures...
Male 101
Technically, this clock isn`t only for geeks. Yes, they are the ones who`d get a kick out of it, but you would have to be a complete idiot not to know which numbers the equations translate to.
Male 10,440
Are you people *still* debating the 0.999... = 1 thing?
Male 10,440
2 is an infinite sum.

We got them all. Very cool clock. I would pay money for this...
Male 7
@ trashcan 7

2 is just summation notation for the infinite geometric sum of 1/2
Male 2,516
If you`re still wondering what they are, look up in the more comments: page 1 should still have my posts where they`re all explained in detail (it`s 3 posts).
Male 564
Lionhart explaining the clock:

"Here:
1. Legendre`s Constant
2. ???
3. Unicode HTML
4. Modular arithmetic
5. Golden Mean
6. Factorial 3
7. 6.99999...
8. Binary (1x2^3 + 0x2^2 + 0x2^1 + 0x2^0)
9. Base-4 (like Binary is Base 2 and Hex is Base 16, this is Base 4 numbering)
10. Binomial Coefficient
12. Cube root=inverse of 12^3

No idea on number 2."
Male 564
yanging... even those who disagree that .999...=1 would disagree with your statement.

Do you know what .99... means? It means that the 9 is repeating infinitely. You can`t say .99... *10= 9.90; that`s completely ignoring what the proof is telling you.

Anyways, I can`t believe you don`t believe that .99... is not 1. You can`t look at it differently; that`s the beauty of math: it`s straight-up true or not.

Wiki

If you are still arguing this, try taking a basic calculus course and then come talk.
Female 536
I`m in Alg. II and I get 10...?
And an easier way to get it wouldn`t be 120/6*2
Just do 5*4/2*1 (since you can cancel the 3*2*1)
Male 7
lol 69...
Female 354
@Fatninja01, 3!, does not equal 6! at all.
3!=3*2*1=6
6!=6*5*so on and so forth.
Male 172
"Ikeray: this proof works better.

X=0.99...
10X=9.99...
10X-X=9
9X=9
X=1=0.99..."

problem with this is that .99 x 10 is 9.90, not 9.99
Male 1,835
i still dont get 1 3 10 and 11.. D: but then again i`ve only taken advanced algebra. still :/ i am saddened by this
Male 1,674
@tozhan
I don`t really think that proof is valid. You need to show why 10X-X=9. The person who doesn`t understand that .999... = 1 won`t really understand that the decimal portion of 10X equals the decimal portion of X.
Male 14
Ikeray: this proof works better.

X=0.99...
10X=9.99...
10X-X=9
9X=9
X=1=0.99...
Female 301
my math teacher has that clock
Male 3,755
I have no idea what these mean, but I can still figure out what time it is. Does that make me a super genius?
Male 2,703
mluther, the 1/3, 2/3, 3/3 isn`t as good an explanation as .111...=1/9, .888...=8/9, .999...=9/9=1
Male 1,129
they should have used eulers identity for 1... that won is way cooler.
Male 112
you guys doing the math, its pointless. its exactly like a normal clock. 12 is at the top and six is at the bottom.
Male 45
I want
Female 258
haha clever
Male 1,361
MIND `PLOSION!!!!!!
Male 1,067
Bloody hell!
I scroll down to the comments and everyone`s doing maths.
Why do the maths when you know the answer? (and don`t know how to do the maths)
Female 8
oh wow I c IAB is full of geeks...... watch em go
Male 1,023
1/3=.3333333....
.999999....=3/3=1/3+1/3+1/3=1
Male 94
For those of you still caught in the days of the ancient Greeks and do not believe in the convergence of a repeating number or series I submit to you two proofs:
10(.99...)=10/9=9.99...
(10-1)(.99...)=9/9=9.99...-.99...=9
9(.99...)=9
therefore .99...=1
Or if you do not believe that we can use physical evidence with Xeno`s paradox with an infinite series which approaches 1 slower then .9 repeating (ie if it converges so must .99...; before one travels 1 foot they must first travel .5 feet then .25 feet and so on; if this never adds to one then then all movement is impossible. The B is legrende`s constant which is based on a series using the prime counting function, 11 and 9 are just different bases and 10 is not a matrix function but 5 choose 2.
Male 2,516
9. Base 4: 1*(4^0) + 2*(4^2) = 9
(why so many bases? so far it`s been 2 hex, one binary and one 4 ...) Also, I always write them backwards because I like 0,1,2,...,n instead of n,...,3,2,1,0

10. (5 2) = 5!/(3!2!) = 120/(6*2) = 10

11. Base 16, where A = 10, B=11, ... and the UNIX prefix 0x is used:
0x0B = 0B(Hex) = 11*(16^0) + 0*(16^1) = 11

12. 12*12*12 = 1728, so it`s cubic root is 12.
It would`ve been more fun to write 1729 + i^2, if only because 1729 is a much more interesting and convoluted number.
Male 2,516
7. (The controversial one), if 6.999... wasn`t infinite, then you`d be right, it wouldn`t be 7. But in a space that admits infinities, you can`t make a distinction between
6.999... < 7 < 7.0000...
because there`s no concept of sequence for infinities, same as with 2., this is also an exact result.
(See Galileo`s paradox to see why you can`t make sequences with infinities, if you count every number in an infinite sequence, and you count the number of squares in the same sequence you find that they both have the same number of elements, which is wrong because every square is in the same sequence. 1,2,3, ... inf, is gonna have inf numbers. but 1, 4, 9, ... is also going to have inf numbers, but the second sequence "should" be smaller since every number of it is contained in the first one.)

8. Binary, from right to left: 0*(2^0) + 0*(2^1) + 0*(2^2) + 1*(2^3) = 8

9. Base 4: 1*(4^0) + 2*(4^2) = 9
(why so many bases? so far it`s been 2 hex,
Male 2,516
K here they are, explained in detail (each)

1. Legendre`s constant (historical since B = 1). I would`ve used something more fun for 1 like -e^{i Pi}, but oh well

2. Imagine the result of that sum is "S", so:
S = 1 + 1/2 + 1/4 + ...
2S = 2 + 1 + 1/2 + 1/4 + ...
Now, 2S - S = S = 2
It`s not approximate, since the sum is infinite, this is an exact result.

3. Unicode HTML in hex for numbers, except I have no idea where the i comes from, 3 can be easily represented as &#x33

4. Using the definition of inverse modulo, bb^{-1} = 1 mod 7
1 mod 7 = 1,
It`s the numerator in 1/7.
So let`s find the number that has the same numerator when divided by seven and multiplied by (2^{-1})^{-1} = 2
8/7 = 1 + 1/7, so bb^{-1} = 8, and since b^{-1} = 2, that makes b = 4. In this notation, b^{-1} is NOT 1/b.

5. The golden ratio is (1 + sqrt(5))/2 = f, so 2f - 1 = sqrt(5) and its square is 5

6. 3! = 1*2*3 = 6
Male 2,893
actually thats pretty easy.
Male 2,552
>SPrinkZ
Or the 6.[nine with a line over]. That one`s easy too, and I ain`t finished Highschool yet! ...Or our equivalent, that is.
Male 22

Actually, look closely enough and you`ll see that 11/9 IS a bunch of 11 repeatings. Only each one occupies 2 decimal places. 1.1, 0.11, 0.011, 0.0011... Add them all up and you get 1.22repeating. But anyway, you`re missing the point. This is just a simplified explanation. If you`re interested in the more lengthy ones, you could probably just look up the proof on the internet. I know its in my notes somewhere here but i`m much too lazy to look for it now haha.
Female 99
The only ones I remember from high school are those for 12, 2, 5, 6, 7, and 10.
Male 8,302
> steve41high
> i can tell you what every number it means is: 1, 2, 3, 4...

DAMN but you`re good at that math thingy!

[quote]If I hadn`t already given the Comment of the Day Award for today, you`d have just go it I think[/quote]
Male 1,043
O_O
Male 2,306
the 3! was the easiest one I`d say if you have graduated highschool. >.>
Male 1,153
i can tell you what every number it means is.

1, 2, 3, 4...
Female 654
or you can just remember where the numbers go on a regular clock..they make them with no numbers at all
Male 21
@ferrari91169: 3! = 1*2*3. 5! = 1*2*3*4*5. Get it?
http://en.wikipedia.org/wiki/Factorial
Male 2
Wow maybe the 3rd times a charm stupid cookie error every damn time.

3! means you multiply that number by the numbers before it going down to 1. Example:

3x2x1 = 6
Male 2,306
A recurring decimal does = 1

Here is an example: 1/3 = .3333...

so 3/3 = .9999...but also 1

It`s the same.
Male 208
Is it basically saying if you say "3" loud and clear enough, "3!" that it becomes a 6? That`s all I can think...
Male 208
Meh, it`d be just as easy to tell time with this clock even if you don`t know what any of it means...like me...what the [email protected]# is "3!"?
Male 4,546
MrYouKnow:
"I only understand 3".

Do you mean 3! which is 6, or do you mean the actual 3?
Male 312
I...don`t understand anything on this
Male 485
@pimre, NERD!
Male 1,081
Wow, I only understand 3.
Male 10,440
[quote] you`re right, a recurring decimal never actually equals the integer. [/quote]
No, you`re wrong. 6.999... = 7.

[quote] 6 repetend 9 does not equal 7. EVER. [/quote]
You just had to include that hearty "EVER" at the end didn`t you? I suppose if you didn`t there might just be times when it does equal 7, as if the terms somehow felt the need to be equal.
Male 2,004
makes perfect sense to me
Male 7,933
in an infinite summation series, the number becomes so close to 7 that it basically becomes 7.
Male 99
LOVE IT!
Male 103
i got all of them except 1, 3 and 11.
Male 906
i only understand 4 of them ._.
Male 12,365
[quote]@lionhart2, I hate that joke. It bothers me so much because the bartender is the idiot. Just like "7" on this clock, 6 repetend 9 does not equal 7. EVER.[/quote]

I read the joke as a contrast between everyday practicality and abstract maths.

The bartender`s action addresses the issue in a fast and effective way - the second pint will be enough to meet the orders of the mathematicians because between them they will never quite drink the whole pint.
Male 8,302
> Stelly and Others
> 6 repetend 9 does not equal 7. EVER.

Correct - I agree that for a "math geek clock" that is MATHEMETICALLY correct. However, since other number systems are present here, such as the human system called "time", if it was .0000000000001 seconds before 7 o`clock and someone asked you the time, you`d round it and say "7 o clock". Obviously, we`d all be a lot happier if they had used `approximately equal to` on the clock, but you`re right, a recurring decimal never actually equals the integer.
Male 342
#7
6.999_ = 6 + 0.999_

0.999_ = 0.9+0.09+0.009+...
a=0.9 r=1/10
With infinite terms:
0.9/(1-1/10)=0.9/0.9 = 1
So 6.999_ does equal 7
Still, believe what you want and call others idiots for disagreeing. Commence insults.
Male 2,440
You guys, 0.999... DOES equal 1.

LOOK IT UP.
Female 198
My algebra teacher has this clock.
Male 1
@ jazzoon. 1/9 is 0.1repeating. x/9 is 0.xrepeating. So what is 9/9? 0.9repeating which equals 1.

So x=11 11/9 Does not equal 0.11repeating.
Male 625
Asymptotes. A number can get as close to x without ever reaching it. theorectically, you can keep putting 9`s after the decimal and it should never tough the asymptote. Of course this is just my way of thinking.
Female 3,574
mickeym19, I fail to see how you can see something like that "differently", but I guess I should just stay out of math-related debates lol
Male 22
I really don`t see what is so controversial about it, but i`m not going to argue. Calculus is zen and I will continue to live with calculus.
Male 625
Yes, jazz. But many people, including me, view it differently. They could have used a non-controversial way of representing 7 (that would have appeased everyone).
Male 85
I believe that what trashcan7 is trying to say is that the number .999999 repeating to infinity becomes a number so very close to the integer 1 that it actually can be evaluated as the number 1, with little deviation. It`s called the limit of a number
Male 22
also, inb4 grammar mistakes. I`m tired, eff you.
Male 22
seriously, all you people who think 0.999 repeating is NOT 1 need to go to class and listen -_-

There are various ways to prove it, but here`s a simpler way too look at it. 1/9 is 0.1repeating. x/9 is 0.xrepeating. So what is 9/9? 0.9repeating which equals 1.
Male 625
@ Pui

You can`t call trashcan an idiot because his way of thinking is supported by many (if not most) mathematicians. I just choose to look at it differently.
Male 317
"Lionhart: 2 is the infinite sum 1+1/2 + 1/4 + 1/8... = 2"

No it doesn`t. It means that you are infinitely coming closer to 2 by an infinitely smaller number.
Female 3,574
trashcan7, I suck at math and even I know you`re an idiot.
Male 625
.9999 continued does not equal 1. I don`t care if Stephen F`in Hawking told you this. Whoever did, is wrong.
Male 317
Trashcan7, No I am not joking. I don`t care who says what, .99999 repetend does not equal 1. Rounding does not mean it is, it means it`s nearest to.
Male 625
when the hell did 6.9 (continued) become 7?

for science or math "geeks", they`re not very bright.
Male 564
Stelly: I hope you`re just joking. It`s a mathematical fact that .999 repeating = 1. Look it up yourself.

Lionhart: 2 is the infinite sum 1+1/2 + 1/4 + 1/8... = 2
Male 1,837
only got 12 :(
Male 317
@lionhart2, I hate that joke. It bothers me so much because the bartender is the idiot. Just like "7" on this clock, 6 repetend 9 does not equal 7. EVER.
Male 61
I guess 11 ("0x0B") assumes a byte-wide value. :-)
Male 2,591
lol i can only figure out 8 and 11
Male 316
...OR you could simply be one of the people who can read blank anolog clocks. :)
Female 3,574
I only got 3 and 8 lol.
Male 12,365
That`s the best joke I`ve seen this week.
Male 5,194
>Can someone explain 3 and 11?
3 is formatted for an ASCII 3 in hex,
11 is "B" in hex.
Male 8,302
Found it thanks to Google, number 2 is a reference to a joke about infinite parabolic curves which become closer to the integer with each iteration without every equalling it.

The joke is:
An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders half a beer. The third, a quarter of a beer. The fourth, one-eighth of a beer. The fifth, one-sixteenth of a beer. The sixth...

The bartender says "You`re all idiots", and pours two beers.
Male 8,302
> LazyMe484
> Can someone explain 3 and 11?

Here:
1. Legendre`s Constant
2. ???
3. Unicode HTML
4. Modular arithmetic
5. Golden Mean
6. Factorial 3
7. 6.99999...
8. Binary (1x2^3 + 0x2^2 + 0x2^1 + 0x2^0)
9. Base-4 (like Binary is Base 2 and Hex is Base 16, this is Base 4 numbering)
10. Binomial Coefficient
12. Cube root=inverse of 12^3

No idea on number 2.
Male 203
number 3 is a A Unicode character as a HTML entity (wiki it)
Male 12,365
[quote]Can someone explain 3 and 11?[/quote]

11 is being being expressed in hexadecimal, so that`s just a change of base.

I don`t even recognise the symbols used in 3.
Male 15,832
[quote]Can someone explain 3 and 11?[/quote]

I took 21 hours of math, and I haven`t a clue on 3. 11 is just A hexadecimal number. 0x is the prefix that says what follows is a hexadecimal number, and 0B is 11 (08, 09, 0A, 0B, 0C, 0D, 0E, 0F, 10, 11...)
Female 4,376
Math was never my best subject. Actually to be honest it was my worst subject. I was in special classes for math from like 4th grade all the way to senior year. I still like this clock though.
Male 10,440
Can someone explain 3 and 11?
Female 2,352
I didn`t get a single one.

Math fail!
Male 749
Got 12, 6, 7 & 8. :|
Male 430
engage sarcasm
*Why is that three so excited?*
sarcasm offline

Male 15,510
Male 1,164
Looked at it, thought "I GET 3 FACTORIAL!"

Looked at comments. Everyone got 3 factorial.

v.v
Female 1,324
yay 3!
I know what the means ;-;
Male 772
Cube root, summation, factorial, and .9999=1 proof are the only ones I got =/
Male 1,378
3!
Male 612
actually, that 6.9 repeating thing is pretty cool. you can prove that it`s equal to 7.

Male 1,451
Poor 7, that`s kinda lame.

8`s not so wicked either.

But I approve.
Male 988
"This would be easy to read by anyone who can read a clock."
Yeah true. But then thats when we start moving poo.
I.e. making Pi to be 3 hours, 14 minutes, 15 seconds, etc. rather than 3pm.
Male 1,195
"It`s 10:10, actually BenTheBug"

Thanks for clearing that up... )-|
Male 12,138
Yeah, what Garuness said.
Male 931
DIETY: I think its binary, right to left is 1,2,4 and 8 and the `8` is darkened.
Male 586
I still think the binary watch is cooler.
Male 196
I don`t get the 8 o`clock one, anyone care to explain it to me?
Female 3,574
This would be easy to read by anyone who can read a clock.
Male 196
It`s 10:10, actually BenTheBug
Female 864
you can buy this from thinkgeek
Male 1,195
I can`t read what it says, but the time on the clock is 10:10, take that, description!
Female 3,726
This would be great at work...where can I buy one!?
Male 1,598
I consider this the same as the kind with no numbers, you just know the time from what dashes the hands point at.
Female 9,562
I want!
Male 20,830
Link: The Perfect Science Clock For Smart Geeks [Pic] [Rate Link] - For everyone else, just expect to be late to everything...