How Mathminded kids kill time.

[Baitball Blogger]

[Scuba]

1. K&R

[Baitball Blogger]

2. Part 2 is interesting too. Link at the end of the video.

[talkingmime]

3. My youngest memorized pi out to 200 decimal places. She can still rifle off over 100 of them.

[Baitball Blogger]

4. I hear that a math genius thinks they found a mistake in pi.

But, you know what they say. Better half a pi, than no pi at all.

[talkingmime]

7. Groan. I don't know how they could have found a mistake. The calculation technique is solid.

[Sekhmets Daughter]

5. I want to make a hexaflexagon!

Really cool. Thanks!

[Baitball Blogger]

6. As entertaining as this is, I'm still waiting for someone to tell me

what the practical use of this discovery is.

[Sekhmets Daughter]

9. Other than entertainment?

I think the 'use' may have been insights into multisided, multidimensional figures...only mathematicians could appreciate.

[Baitball Blogger]

10. That's what I was afraid of.

It means, besides Transformers, I can't visualize what comes next.

[Sekhmets Daughter]

12. Know that feeling well!

[talkingmime]

8. Here's a tutorial...

http://en.wikipedia.org/wiki/Hexaflexagon#Hexaflexagons

[Sekhmets Daughter]

11. Thanks...

I am no mathematician, obviously, but I find the whole idea fascinating.

[Baitball Blogger]

13. How sad. One of the potential commercial uses is as an ad device.

[talkingmime]

14. Isn't everything now?

[pokerfan]

15. I was making them in the sixties

after seeing them in Martin Gardner's column Scientific American. More sophisticated than the cootie-catcher.

[Sekhmets Daughter]

16. cootie-catchers....

I hated the damned things!

[pokerfan]

17. I got regular vaccinations

Circle, circle, dot, dot...

[Sekhmets Daughter]

18. Vaccinations....Yuck!