# Geek Clock

\$25.00

## Time To Embrace Your Inner Geek

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 Pictured before you is a clock, where all the numerals have been replaced by the equivalent notation!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):
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.

plastic
Measurements
11.75" dia
Notes
Requires one AA battery, included.
Item ID
18145

Still haven't found the details you're looking for? Check out our Product Q&A!

Most of our items are in stock and will ship quickly. Orders for in-stock items placed before 5pm ET Monday through Friday, excluding Federal holidays, will ship:
Economy shipping:
within 8 days, arriving no later than the 9th business day after the order was placed.
Standard shipping:
within 4 days, arriving 5 business days after the order was placed.
Preferred shipping:
within 2 days, arriving 3 business days after the order was placed.
Expedited shipping:
within 1 day, arriving 2 business days after the order was placed.
Express shipping:
will ship the same day and arrive 1 business day later.

Geek Clock has been discontinued. When it sells out, it will no longer be available.

### you might also like

\$30.00

\$68.00

\$28.00

\$36.00

\$1490.00

• #### Glowing Milky Way Wall Clock

\$35.00

REVIEW SNAPSHOT®

by PowerReviews
Geek Clock

4.4

(based on 619 reviews)

Ratings Distribution

• 5 Stars

(333)

• 4 Stars

(223)

• 3 Stars

(33)

• 2 Stars

(12)

• 1 Stars

(18)

94%

of respondents would recommend this to a friend.

Pros

• Attractive (495)
• Clear display (477)
• Keeps good time (281)
• Reliable (238)
• Unique (17)

Cons

• Unreliable (14)
• Unattractive design (10)
• Inaccurate (9)
• Poor quality (7)
• Difficult to read display (5)

Best Uses

• Decoration (249)
• Desk (165)
• Bedroom (97)
• Kitchen (51)
• Reviewer Profile:
• Midrange shopper (376), Budget shopper (174), High-end shopper (26)
• Primary use:
• Yes (348), No (43)

Most Liked Positive Review

I gave this as a gift for my son's graduation from Engineering College. He loved it and immediately and just starting laughing! It was looked at by everyone and it was thought to be...Read complete review

I gave this as a gift for my son's graduation from Engineering College. He loved it and immediately and just starting laughing! It was looked at by everyone and it was thought to be such a unique gift.

VS

Most Liked Negative Review

Love the idea, but it doesn't work

A friend got me this clock, because I'm the only one she knows who likes math. I thought it was so much fun!
Unfortunately, the clock mechanism is a piece of...Read complete review

A friend got me this clock, because I'm the only one she knows who likes math. I thought it was so much fun!
Unfortunately, the clock mechanism is a piece of junk. It has never worked, even when I put a new battery in it.
I love the clock face, so I should take it to someone who can put a real working clock in there, but I feel it should have worked to begin with. For now i just have it on the wall, and if someone says they can't tell what time it is, I tell them they just don't know how to do math. :-)

Reviewed by 619 customers

Displaying reviews 1-10

Previous | Next »

2.0

Poor delivery

By

Pros

• Clear Display

Cons

• Inaccurate
• Unreliable

Best Uses

The clock was delivered broken. The packaging was poor. No protection for the product other than a cardboard packaged box. This is why the product broke.

• Primary use:
• Personal
• Yes

3.0

Great in theory, not the best quality

By

from Norfolk, VA

I was very excited to find such a perfect gift for my friend, but when it arrived, I was pretty disappointed. The display (with the equations) was actually just a piece of printed paper laid on the back of the clock and it was bubbled at the top, which just made it stand out even more. There was no way to get inside the clock to try to glue or tape down the display. I guess the picture just made it look a little more "sturdy"

• Primary use:
• Personal
• Yes

5.0

Cool product at an affordable price

By

from NJ

Pros

• Attractive Design
• Clear Display

Cons

• Inaccurate

Best Uses

• Decoration

I baught this for a friend of mine, who studies math at calTech. He liked it for the interesting equations and the stories behind them.

• Primary use:
• Personal
• No

4.0

Great bday gift for future math teacher!

By

from Cleveland, OH

Pros

• Attractive Design
• Clear Display

Cons

• Lightweight

Best Uses

• Bedroom
• Classroom

Brother is going to be a math teacher and he loved this gift! I was a little upset about the lightweight feel of it, but it looks great.

• Primary use:
• Personal
• Yes

5.0

Lightning fast delivery!

By

from Lexington, SC

Pros

• Attractive Design
• Clear Display
• Keeps Good Time
• Reliable

Cons

Best Uses

• Bedroom
• Decoration
• Desk

My math geek son LOVED this clock. I bought it as a housewarming gift. It arrived in a few days and was packed professionally. Thank you!

• Primary use:
• Personal
• Yes

4.0

Fun and Functional

By

from Hoboken, NJ

Pros

• Attractive Design
• Keeps Good Time

Cons

Best Uses

• Bedroom
• Decoration

I bought this gift for my boyfriend who is an engineer and math "geek". He loved the clock, and has shown it off to all of his college buddies, and they joke about the formulas, etc. The first clock that we got ticked really loudly and was consistently falling behind, but Uncommon Goods was great about a replacement. The new unit is so quiet that I often forget that there's a wall clock in the room, and it's been accurate so far! I really think that the first one was just a one off dud in bunch, or perhaps got a little too jostled during the holiday deliveries, (even though it was packed really well). All in all, the gift is fun and functional, and highly recommended for any math "geek".

• Primary use:
• Personal
• Yes

5.0

Nerd goes NUTS!!

By

from greater Portland, OR

Pros

• Attractive Design
• Clear Display
• Keeps Good Time
• Reliable

Cons

Best Uses

• Bedroom
• Classroom
• Decoration
• Desk
• Kitchen

Hung on the wall of my very nerdy husband.

• Primary use:
• Personal
• No

4.0

Good Geeky Clock

By

from Detroit, Michigan

Pros

• Attractive Design
• Keeps Good Time

Cons

Best Uses

Great product!

• Primary use:
• Personal
• Yes

(1 of 1 customers found this review helpful)

5.0

Awesome

By

from Martin, TN

Pros

• Attractive Design
• Clear Display
• Super Cool Labels

Cons

Best Uses

• Decoration

I gave this as a gift, and it was very well-received. Every time I see it, I think how great it looks on the wall. I chose it, though, because I really liked the variety and complexity of the equations. I wanted something that wasn't ordinary and I definitely got it!

This arrived very fast! I was glad because it had been back-ordered and had just become available again. I wanted to give it as a gift a week away from the day I ordered it. It arrived within days.

• Primary use:
• Personal
• Yes

(1 of 1 customers found this review helpful)

5.0

By

from San Antonio, Texas

Pros

• Attractive Design
• Clear Display
• Contemplative Piece
• Keeps Good Time
• Reliable

Cons

Best Uses

• Home office