A Clock for Math Whizzes

Alex

Now this is a clock for math whizzes! The clock sports math equations involving the number 9 and is made by the Triple Nine Society, a high-IQ organization:

Each number is expressed as a calculation involving three instances of the number 9.

For example, 5 o'clock is the square root of nine (3), factorial (3x2x1 = 6), minus 9/9 (6-1 = 5).

The trickiest time is 7 o'clock, whose calculation works out to 6.99999..., with an infinite number of nines. Wikipedia assures us that 0.99999... really does equal 1, so no worries that the clock is cheating there.

Link - Thanks bactac!


Comments (5)

Newest 5
Newest 5 Comments

Why do you need Wikipedia to tell you that .999(9) is equal to 1? The proof is three lines long:

Let S = 0.999(9)
Then 10*S = 9.999(9)
10*S - S = 9 --> 9S = 9 --> S = 1

Tada.
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Math "whiz"? Yeah, figuring out the square root of 9 is pretty challenging.

I'd say it's geeky and suitable for a math teacher's classroom, but not quite "whiz level". It's probably beyond about the top 5% of U.S. government school teenagers, though. Cute.
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Went through a bentalyser last night on the way to KFC and then 10 minutes later all the coppers on their dinner break came to the KFC (round the corner). It made me wonder if they setup the drug bus around the corner from the KFC on purpose. Not only that but if you were stoned and in the KFC when 20 cops turn up...I think you would give yourself away like this bloke.

ps: that copper has a laugh
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