Even though I don't understand all of the equations I can still tell what time it is.
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.
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
Love that it comes with problems solved as there is no way I could do the math-even with the answer
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.
Placed in guest room/man cave
Zephyr Cove, Nevada
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.
My son is a math whiz and he got a kick out of this 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.
New York, NY
Purchased this as a gift for my son who loves Mathmatics. He loved it!
Annie the Mom!
Shawnee, Kansas 66226