While everyone else was watching the clock, you were paying attention during math class, storing away square roots and factorials for a day where you could prove your mathematical prowess.
Well, my geeky friend, that day has come. Pictured before you is a clock, where all the numerals have been replaced by the equivalent notation! How will we ever know what time it is unless you solve them all?
Cheat Sheet (included with each clock):
12 - a radical
1 - Legendre's constant is a mathematical constant occurring in a formula conjectured by Adrien-Marie Legendre to capture the asymptotic behavior of the prime-counting function. Its value is now known to be exactly 1.
2 - A joke in the math world: 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 bartender says, "You're all idiots," and pours two beers.
3 - A unicode character XML "numeric character reference."
4 - Modular arithmetic, also known as clock arithmetic, is a system of arithmetic for integers, where numbers "wrap around" after they reach a certain value. The modular multiplicative inverse of 2 (mod 7) is the integer /a/ such that 2*/a/ is congruent to 1 modulo 7.
5 - The Golden Mean...reworked a little.
6 - Three factorial (3*2*1=6)
7 - A repeating decimal that is proven to be exactly equal to 7 with Cauchy's Convergence Test.
8 - Graphical representation of binary code.
9 - An example of a base-4 number, which uses the digits 0, 1, 2 and 3 to represent any real number.
10 - A Binomial Coefficient, also known as the choose function. 5 choose 2 is equal to 5! divided by (2!*(5-2)!)
11 A hexadecimal, or base-16, number.
This was a gift for my engineer-son. He was delighted to have it for his new home-office. The family thought it was perfect for him; and we all had good laughs that my son understood everything on the "cheat sheet"; and the rest of us knew nothing!
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Comments:
love it
By jess from nj on 2/5/2010
Gift:
Yes
Pros:
Attractive Design, Clear Display, Keeps Good Time, Reliable
Best Uses:
Gifts
Describe Yourself:
Midrange Shopper
Primary use:
Personal
Bottom Line:
Yes, I would recommend this to a friend
Comments aboutGEEK CLOCK:
I got this for my very geeky neighbor couple for their anniversary and they love it.
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Comments:
This was a fun gift and a real hit!
By Susan from Timonium, Maryland on 2/4/2010
Gift:
Yes
Pros:
Attractive Design, Clear Display, Keeps Good Time, Reliable
Describe Yourself:
Midrange Shopper
Primary use:
Personal
Bottom Line:
Yes, I would recommend this to a friend
Comments aboutGEEK CLOCK:
I sent this as a gift to a college student -- a math major -- and he thought it was very cool.
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Comments:
Not well made
By Math geek's sister. from Rochester, NY on 2/3/2010
Gift:
Yes
Cons:
Unattractive Design
Describe Yourself:
Midrange Shopper
Primary use:
Personal
Bottom Line:
No, I would not recommend this to a friend
Comments aboutGEEK CLOCK:
I gave this as a gift to a math geek. It was a great idea. However, the materials are really cheaply made. Just a sticker on plastic.
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Comments:
a great and fun clock
By Jason from Palm Beach Gardens, FL on 1/26/2010
Gift:
No
Pros:
Attractive Design, Clear Display
Cons:
None
Best Uses:
Decoration, Desk, Gifts
Describe Yourself:
High-end Shopper
Primary use:
Business
Bottom Line:
Yes, I would recommend this to a friend
Comments aboutGEEK CLOCK:
I own learning centers, this clock is perfect for our business as it's fun and in theme with what we do. Thanks!
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Comments:
How to Impress a Math class!
By jp from Albany, NY on 1/22/2010
Pros:
Attractive Design, Clear Display, Keeps Good Time, Reliable
Best Uses:
Classroom, Office Wall
Describe Yourself:
Midrange Shopper
Primary use:
Business
Bottom Line:
Yes, I would recommend this to a friend
Comments aboutGEEK CLOCK:
My students LOVE the Geek Clock. I even bought one for someone else. Everyone who comes into the office asks about it!
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Comments:
Great for the Geek Who Has Everything
By FirecrackerDad from Miami, FL on 1/19/2010
Gift:
Yes
Bottom Line:
Yes, I would recommend this to a friend
Comments aboutGEEK CLOCK:
We bought this for my father, a mathematician and scientist, for Christmas, and he was truly delighted. It has replaced his office clock, and he now uses it to quiz unsuspecting co-workers. A great gift--and it comes with a cheat sheet for those of you who are liberal arts folks, and want to see if the geek who receives the clock really knows his or her stuff.
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Comments:
[0 of 1 customers found this review helpful]
Great clock
By Rosie from Orlando, Fl on 1/18/2010
Gift:
Yes
Pros:
Clear Display, Keeps Good Time
Best Uses:
Classroom, Gifts, Office Wall
Describe Yourself:
Midrange Shopper
Primary use:
Personal
Bottom Line:
Yes, I would recommend this to a friend
Comments aboutGEEK CLOCK:
Great clock! I gave it as a gift to my stepfather and he loved it. Everyone at his birthday thought it was so original and clever. Good price and gift wrap was nice.
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Comments:
Excellent way to earn geek cred.
By Salumi from Seattle, WA on 1/14/2010
Gift:
No
Pros:
Attractive Design, Clear Display, Keeps Good Time, Reliable
Best Uses:
Desk
Describe Yourself:
Midrange Shopper
Primary use:
Business
Bottom Line:
Yes, I would recommend this to a friend
Comments aboutGEEK CLOCK:
I bought this thing after seeing the (considerably more expensive) pocket watch. It was of immediate interest with my co-workers and helps our side of the office (the techie side) keep up our mystique of smartness.
Keep the cheat-sheet handy - I have a hard time remembering all of the solutions (and they aren't all obvious).
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Comments:
[1 of 1 customers found this review helpful]
Great clock!
By Adam the Statistician from Brookings, SD on 1/14/2010
Gift:
Yes
Pros:
Attractive Design, Clear Display, Keeps Good Time, Reliable
Best Uses:
Decoration, Desk, Gifts, Kitchen
Describe Yourself:
Midrange Shopper
Primary use:
Personal
Bottom Line:
Yes, I would recommend this to a friend
Comments aboutGEEK CLOCK:
I bought this for the head of the Math Department at my university. He absolutely loved it! He replaced his old digital one on the spot. This makes for a great gift and a good conversation piece. I highly recommend it!
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