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 Pictured before you is a clock, where all the numerals have been replaced by the equivalent notation!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

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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)
• Christmas or hanukkah (26), Birthday (8), Other (6)

Reviewed by 619 customers

Displaying reviews 91-100

4.0

Fun gift for a math expert

By

from Springfield, Missouri

Pros

• Attractive Design
• Clear Display

Cons

• Little cheap and light

Best Uses

• Decoration
• Office Clock

Really fun gift idea for a math expert or someone that likes to show off their intelligence!!
It was a little cheaply made and light weight, but still a fun and interesting way to keep time

• Primary use:
• Personal

5.0

"Conversation piece or clock"

By

from Seattle, WA

Pros

• Attractive Design
• Funny

Cons

Best Uses

• Decoration

Gave this as a gift to my brother who is a chemical engineer. He loved it! It will be a great conversation piece in his bachelor pad's living room.

• Primary use:
• Personal

4.0

Perfect Gift for a Math Geek

By

from Coventry, RI

Pros

• Attractive Design
• Clear Display

Cons

Best Uses

• Dorm room

Bought this for a college Math Major. He loved it. The numbers are clear and the clock is a great novelty for him to put in his dorm room.

The quality of the clock could have been a little higher. Plastic body was not as nice as I'd hoped. Great gift overall.

• Primary use:
• Personal

3.0

A great gift as long as it works...

By

from Saint George, UT

Pros

• Attractive Design
• Clear Display

Cons

• Inaccurate
• Unreliable

Best Uses

My fiance has been dying to geek out the guest bathroom, so I bought this awesome clock for him for Christmas. Physically, the clock looks really great. The display is awesome, the numbers are printed very crisply... It looked even better in person than I'd hoped.

Unfortunately, it stopped working the moment we hung it up. The second hand made one single full rotation and then gets caught and stopped moving. It was kind of embarrassing just because it was a gift, but there's not much that can be done at that point.

I'll be returning this for a refund, but I hope others have better luck than I did this time around. It really is a lovely clock. Perfect for any geek-lover as long as it works.

• Primary use:
• Personal

5.0

My Math Geek Loved It!

By

from San Antonio, TX

Pros

• Attractive Design
• Clear Display
• Great equations

Cons

• None

Best Uses

• Office Wall

The equations actually work out to correspond with clock numbers. My college math professor brother and my son (recipient of gift) talked about the equations and their meanings for a long time. My brother even said "this is better than the one in my office."

• Primary use:
• Personal

5.0

I love it!

By

from Laurel, MD

Pros

• Attractive Design
• Clear Display
• Fun for Math Major

Cons

Best Uses

• Dorm room

It's a fun twist on a wall clock!

• Primary use:
• Personal

1.0

A great concept, but flimsy construction

By

from Mountain View, CA

I ordered this as a present for my husband for his birthday about a year ago. He's a math teacher, so I knew it would be a great gift. When he opened it, I was a little worried about the seemingly flimsy construction, but it was okay for awhile. However, just the other day, the hour hand inexplicably sunk down to the six and no longer has the ability to stay up. Such a bummer, as my husband really did love the clock. I guess we will look for something more conventional.

3.0

Don't just "hand" over a clock as a gift

By

from Boston

Pros

• Attractive Design
• Clear Display

Cons

Best Uses

Purchased as a Christmas gift for an mathematician. When I installed batteries prior to wrapping the gift it was evident that the hands were bent - the sweep hand stuck on the minute hand. I disassembled the clock and straightened the hands - hopefully it remains fixed and I don't have to return it.

5.0

neat clock

By

from LA

4.0

For the geek in your life...

By

from Lubbock, TX

Pros

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

Cons

Best Uses

• Decoration

This was a gift for my daughter and her husband. They pride themselves on their geekdom and this was the perfect addtion. Quite the conversation piece!

• Primary use:
• Personal

Displaying reviews 91-100