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
Made from
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

  • Gifts (31)
  • 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)
    • Was this a gift?:
    • 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

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5.0

Conversation piece

By 

from Zephyr Cove, Nevada

About Me Midrange Shopper

Verified Buyer

Pros

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

Cons

    Best Uses

      Comments about UncommonGoods Equation Geek Clock:

      Placed in guest room/man cave

      • Primary use:
      • Personal
       
      5.0

      He LOVED it!

      By 

      from Lovell, ME

      About Me Midrange Shopper

      Verified Buyer

      Pros

      • Attractive Design
      • Clear Display

      Cons

      • None

      Best Uses

      • Bedroom
      • Decoration
      • Gifts

      Comments about UncommonGoods Equation Geek Clock:

      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
      • Was this a gift?:
      • 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

      Verified Buyer

      Pros

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

      Cons

        Best Uses

          Comments about UncommonGoods Equation Geek Clock:

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

          • Primary use:
          • Personal
          • Was this a gift?:
          • Yes
          • For what occasion did you purchase this product?:
          • Christmas or Hanukkah
           
          5.0

          Made a great gift!

          By 

          from New York, NY

          About Me Budget Shopper

          Verified Buyer

          Pros

          • Attractive Design
          • Clear Display

          Cons

            Best Uses

            • Bedroom
            • Decoration

            Comments about UncommonGoods Equation Geek Clock:

            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
            • Was this a gift?:
            • Yes
            • For what occasion did you purchase this product?:
            • Christmas or Hanukkah
             
            5.0

            I would purchase this item again!

            By 

            from Shawnee, Kansas 66226

            About Me Midrange Shopper

            Verified Buyer

            Pros

            • Attractive Design
            • Clear Display
            • Reliable

            Cons

              Best Uses

              • Decoration
              • Desk
              • Gifts

              Comments about UncommonGoods Equation Geek Clock:

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

              • Primary use:
              • Personal
              • Was this a gift?:
              • 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

              Verified Buyer

              Comments about UncommonGoods Equation Geek Clock:

              See above

              • Was this a gift?:
              • 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

              Verified Buyer

              Pros

              • Attractive Design

              Cons

              • back plate looks warped, likely printed on paper

              Best Uses

                Comments about UncommonGoods Equation Geek Clock:

                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
                • Was this a gift?:
                • 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

                Verified Buyer

                Pros

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

                Cons

                  Best Uses

                  • Decoration
                  • Desk

                  Comments about UncommonGoods Equation Geek Clock:

                  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

                  Good gift

                  By 

                  from Denver

                  Verified Buyer

                  Comments about UncommonGoods Equation Geek Clock:

                  Unique design

                  • Was this a gift?:
                  • Yes
                  • For what occasion did you purchase this product?:
                  • Birthday
                   
                  4.0

                  Loved it!

                  By 

                  from Fort Wayne, IN

                  Verified Buyer

                  Comments about UncommonGoods Equation Geek Clock:

                  I got this for my husband for our 10th anniversary. It was perfect as it has aluminum in it (the modern 10th anniversary gift). He loved figuring out how the equations worked, particularly the binary code as he is a software engineer.

                  • Was this a gift?:
                  • Yes
                  • For what occasion did you purchase this product?:
                  • Anniversary

                  Displaying reviews 1-10

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