# Equation Geek Clock

Add a mathematical twist to the everyday with this equation wall clock.

\$30.00

## Above Average Arithmetic

Learning to tell time is so grade school. Indulge your inner geek and accept a new challenge with this nerdy clock. Each numerical hour of the day is spelled out with a different mathematical notation, giving you a new mathematical boost with each time check. For nascent mathematicians and victims of the occasional memory lapse, a cheat sheet is included with each clock:

1: i is equal to the square root of -1, so i^2= -1. The absolute value of -1 is 1.
2: This represents 2 in binary code.
3: The cube root of 27
4: 11 base 3, which represents 4 in the ternary system
5: Log(20x)=2 is equivalent to 20x=10^2 or 20x=100, where x=5.
6: Euler's product formula: phi(p^k)=(p^k)(1-(1/p)), where (p^k)=9
7: This is a binomial coefficient, so with the formula n/k = (n!)/((k!)(n-k)!), n/k=7.
8: This is a natural logarithm where ln(e^x)=x, so ln(e^8)=8.
9: This summation is equal to 3(1)+3(2)=3+6=9.
10: Since clocks "wrap around" every 12 hours, the hour number starts over after it reaches 12. This is arithmetic modulo 12. 10mod12 is 10:00, and 16mod12 would be 4:00, for example.
11: B'L is Legendre's constant, which is equal to 1, so this equation becomes the square root of 121, which is 11.
12: Hexadecimal representation of 12

Clock movement, aluminum bezel, and glass cover made in China. Clock dial and hands made in USA. Assembled in Los Angeles, CA.

For more geeky timepieces, check out the Equation Geek Watch .

Exclusive
aluminum, plastic, glass
Measurements
10" dia.
Care
Dust with dry, clean cloth. Requires one AA battery, included. Replace batteries when used to prevent corrosion in battery compartment.
Item ID
22254

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.

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REVIEW SNAPSHOT®

by PowerReviews
UncommonGoodsEquation Geek Clock

4.5

(based on 67 reviews)

Ratings Distribution

• 5 Stars

(45)

• 4 Stars

(16)

• 3 Stars

(2)

• 2 Stars

(2)

• 1 Stars

(2)

94%

of respondents would recommend this to a friend.

Pros

• Attractive (54)
• Clear display (46)
• Keeps good time (26)
• Reliable (23)
• Unique (5)

Cons

No Cons

Best Uses

• Decoration (21)
• Desk (12)
• Bedroom (11)
• Kitchen (6)
• Reviewer Profile:
• Midrange shopper (36), Budget shopper (18), High-end shopper (3)
• Primary use:
• Personal (55), Business (5)
• Yes (58), No (6)
• For what occasion did you purchase this product?:
• Christmas or hanukkah (34), Birthday (14), Other (11), Anniversary (4)

Reviewed by 67 customers

Displaying reviews 1-10

Previous | Next »

5.0

Conversation piece

By

from Zephyr Cove, Nevada

About Me Midrange Shopper

Pros

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

Cons

Best Uses

Placed in guest room/man cave

• Primary use:
• Personal

5.0

He LOVED it!

By

from Lovell, ME

About Me Midrange Shopper

Pros

• Attractive Design
• Clear Display

Cons

• None

Best Uses

• Bedroom
• Decoration

He is a difficult person to buy for. Never asks for anything (since he was 6!). But this was right up his ally since math and physics go hand in hand! He hung it on his bedroom wall as soon as he got home.

• Primary use:
• Personal
• Yes
• For what occasion did you purchase this product?:
• Christmas or Hanukkah

5.0

For the Math Geek

By

from Hudson NH

About Me Midrange Shopper

Pros

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

Cons

Best Uses

My son is a math whiz and he got a kick out of this clock.

• Primary use:
• Personal
• Yes
• For what occasion did you purchase this product?:
• Christmas or Hanukkah

5.0

By

from New York, NY

About Me Budget Shopper

Pros

• Attractive Design
• Clear Display

Cons

Best Uses

• Bedroom
• Decoration

Most attractive clock design of any similar items I've found! My brother really loved it and enjoyed proving how he knew each equation correlated to each number hour.

• Primary use:
• Personal
• Yes
• For what occasion did you purchase this product?:
• Christmas or Hanukkah

5.0

By

from Shawnee, Kansas 66226

About Me Midrange Shopper

Pros

• Attractive Design
• Clear Display
• Reliable

Cons

Best Uses

• Decoration
• Desk

Purchased this as a gift for my son who loves Mathmatics. He loved it!

• Primary use:
• Personal
• Yes
• For what occasion did you purchase this product?:
• Christmas or Hanukkah

5.0

Our 13yo boy who is into math found it "cool"

By

from Ohio

See above

• Yes
• For what occasion did you purchase this product?:
• Christmas or Hanukkah

4.0

Nice clock

By

from Los Angeles Area, California

About Me Midrange Shopper

Pros

• Attractive Design

Cons

• back plate looks warped, likely printed on paper

Best Uses

This is a very attractive clock, and usually a conversation piece. I wish the back plate was made of a higher quality print than paper. The back plate looks warped, which makes the clock look cheaply made.

Service and delivery comments:

The service and delivery was exceptional and the clock was properly packaged.

• Primary use:
• Personal
• No
• For what occasion did you purchase this product?:
• Other

5.0

Enviable gift for Geek!

By

from Space coast, Florida

About Me Midrange Shopper

Pros

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

Cons

Best Uses

• Decoration
• Desk

Fun and functional design! My husband started playing with the equations as soon as he got it. Would consider this as a gift for others.

• Primary use:
• Personal
• For what occasion did you purchase this product?:
• Other

4.0

By

from Denver

Unique design

• Yes
• For what occasion did you purchase this product?:
• Birthday

4.0

Loved it!

By

from Fort Wayne, IN