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The Number of the Day: 10,000

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Amazon.com founder Jeff Bezos is currently working with a team to place a 10,000-year clock within a remote Texas mountain. The finished clock will feature specially designed events that will be triggered on the 1, 10, 100, 1000 and 10,000 year anniversaries of the clock.


Related Fact: The time capsule buried at the 1939 World’s Fair in New York is not scheduled to be opened for another 4,928 years.


[Sources: Geekosystem and Weburbanist. See previous Numbers of the Day here. ]

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This Puzzling Math Brain Teaser Has a Simple Solution
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Fans of number-based brainteasers might find themselves pleasantly stumped by the following question, posed by TED-Ed’s Alex Gendler: Which sequence of integers comes next?

1, 11, 21, 1211, 111221, ?

Mathematicians may recognize this pattern as a specific type of number sequence—called a “look-and-say sequence"—that yields a distinct pattern. As for those who aren't number enthusiasts, they should try reading the numbers they see aloud (so that 1 becomes "one one," 11 is "two ones," 21 is "one two, one one,” and so on) to figure the answer.

Still can’t crack the code? Learn the surprisingly simple secret to solving the sequence by watching the video below.

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What Number Is The Answer?
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