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Product Details
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Product Description
If you can read this clock, you are without a doubt a geek. Each hour is marked by a simple math problem. Solve it and solve the riddle of time. Matte black powder coated metal. Requires 1 AA battery (not included). 11-1/2" Diameter.
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Customer Reviews
Most Helpful Customer Reviews
23 of 23 people found the following review helpful
Durability:
4.0 out of 5 stars
Educational:
5.0 out of 5 stars
Fun:
5.0 out of 5 stars
I have this in my great room above my bay window, the only analog clock in my house.
It's a great novelty item, everyone notices it and gets a kick out of it.
The circle that makes up the face is a thin piece, mounted on the square that houses the battery and mechanical parts behind it, so the circle will not sit flush on a wall. And the mount is in the middle of the top of that smaller square in back, making it tougher to find the right hanging point for mounting it.
Other than that, it works well, keeps pretty good time actually, only has to be adjusted a couple minutes each month.
On quiet nights though when I'm just working on my laptop and nothing is on the TV, you can hear the tick tick tick though, so if you're a person who doesn't like the ticking noise, you won't want this hanging anywhere that gets quiet.
It's a great novelty item, everyone notices it and gets a kick out of it.
The circle that makes up the face is a thin piece, mounted on the square that houses the battery and mechanical parts behind it, so the circle will not sit flush on a wall. And the mount is in the middle of the top of that smaller square in back, making it tougher to find the right hanging point for mounting it.
Other than that, it works well, keeps pretty good time actually, only has to be adjusted a couple minutes each month.
On quiet nights though when I'm just working on my laptop and nothing is on the TV, you can hear the tick tick tick though, so if you're a person who doesn't like the ticking noise, you won't want this hanging anywhere that gets quiet.
5 of 5 people found the following review helpful
Durability:
5.0 out of 5 stars
Educational:
4.0 out of 5 stars
Fun:
4.0 out of 5 stars
First of all, I love this clock. I got it as a birthday present and it looks great on my wall.
Now, on to the one problem with it. The expression that is supposed to evaluate to 9, which is 3 * (pi - 0.14), actually evaluates to around 9.00477. Pi is irrational, so you can't express a natural number like 9 with an expression containing pi. I'm sure this has driven many other mathematicians insane, and I seem to be the first one to speak up about it.
Other than that slightly anal comment, its a great clock!
Now, on to the one problem with it. The expression that is supposed to evaluate to 9, which is 3 * (pi - 0.14), actually evaluates to around 9.00477. Pi is irrational, so you can't express a natural number like 9 with an expression containing pi. I'm sure this has driven many other mathematicians insane, and I seem to be the first one to speak up about it.
Other than that slightly anal comment, its a great clock!
6 of 7 people found the following review helpful
By reg
Amazon Verified Purchase
As a former math teacher, I was drawn to this clock! I have purchased it for a former co-worker, who is also a friend, for Christmas. It should be a hit in his room. I was impressed with how quickly this arrived. I ordered Tuesday night and received it before noon on Friday. Since it didn't qualify for Prime, I'm glad it arrived quickly so I feel I got something for having to pay for shipping!
Most Recent Customer Reviews
2.0 out of 5 stars
Very noisy
I bought this for our son's room since he is a big science boy. The clock looks nice but the tick tick tick noise at night is annoying. We had to take it down.
Published 2 days ago by Bookhog
5.0 out of 5 stars
Awesome
Great clock! Got it for my boyfriend for his bday and he loved it!!!He has been getting great compliments on it!
Published 4 days ago by Nina
5.0 out of 5 stars
its is awesome
it sits in our living room and is the best clock in the house makes all the difference in our house
Published 19 days ago by ryan darling
4.0 out of 5 stars
Cute and functional
My husband is a math/physics/engineering guy and has it up at work and loves it. It's got a nice matte finish to it and looks great overall!
Published 20 days ago by Jessica Streng
5.0 out of 5 stars
Great gift for Math Geek Hubby
This clock is cute, it's lightweight and fun. My husband loved it as a gift and kids enjoy the basics of the math problems, it's an automatic talking Piece in the house.
Published 1 month ago by Bath-schelouna
5.0 out of 5 stars
Nice product
I gifted this clock to my nephew on his birthday and he loved it. Arrived on time and no damage.
Published 1 month ago by Sarath
1.0 out of 5 stars
Clever, but stopped working
I love the idea of this clock but after several months, the second hand got stuck on something. Time literally stopped. I couldn't get it to work properly. Save you money. Read more
Published 1 month ago by Tori and Abbi
5.0 out of 5 stars
Great gift
I purchased this clock for a high school math teacher. She seems to have enjoyed receiving the gift & her students get a kick out of it. :)
Published 1 month ago by MogwaiLove
4.0 out of 5 stars
Great gimmick, less-than-perfect execution
I like everything about the concept of this clock. Unfortunately the high-gloss finish makes it difficult to read at any distance.
Published 1 month ago by Liz Donaldson
2.0 out of 5 stars
Like many others....
This clock stoped working after about 6 weeks or so. I wouldnt buy this if I were you. It's cleaver and funny to make people look at math problems; and it seems like it would be... Read more
Published 2 months ago by J. M. Timlin
