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 .

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

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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 in the US:
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.

I really like this clock. A bit avant garde

5

Even though I don't understand all of the equations I can still tell what time it is.

Medford, OR

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Nice product ... needs adjustments

4

The Math equation for 9:00 on the enclosed instruction sheet is incorrect. The number at the top of the summation sign should be 2, not - 2. For 6:00, on the click, the letter should be a lower-case Greek symbol phi. Ad printed, it does not look like a lower-case phi.

Fairfax, VA

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A clock for nerds! (and that's a good thing)

4

Great idea for a clock and it has a nice, clean design. The only downside is the minute markings....there's one extra between each hour marking, so according to the clock, there are 72 minutes in an hour. Not really a huge deal as you can still get a good idea of the time, but you'd think someone who figured out all these advanced equations would also be able to count

San Diego, CA

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Fun and Different!

4

Love that it comes with problems solved as there is no way I could do the math-even with the answer

NY

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Best Equation Clock I found

5

Lots of versions of this concept, but this is the best one. Equations on it are sufficiently obscure to remain a challenge, and the typeface is clear.

Ozawkie KS

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Conversation piece

5

Placed in guest room/man cave

Zephyr Cove, Nevada

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He LOVED it!

5

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.

Lovell, ME

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For the Math Geek

5

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

Hudson NH

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Made a great gift!

5

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.

New York, NY

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I would purchase this item again!

5

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

Shawnee, Kansas 66226

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Equation Geek Clock

4.5 72

94.4