CLOSE
Original image

The Number of the Day: 58,000

Original image






At the levels of radioactive iodine-131 and cesium-137 currently being reported out of Japan, a person would have to drink 58,000 glasses of milk in order to increase their lifetime cancer risk by 4 percent.


Related Fact: For those with a lactose intolerance, that level of contamination could also be reached by consuming roughly 820 pounds of spinach.


[Source: NPR. See previous Numbers of the Day here.]

Original image
iStock
arrow
video
This Puzzling Math Brain Teaser Has a Simple Solution
Original image
iStock

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.

Original image
What Number Is The Answer?
Original image

SECTIONS

arrow
LIVE SMARTER
More from mental floss studios