Archive for the ‘Fun’ Category

Have a symmetrical object named after you

Sunday, December 20th, 2009

I became a big fan of Marcus du Sautoy when I read his books Symmetry, and Music of the Primes.     Then I discovered the TED video, Symmetry: reality's riddle. SHARETHIS.addEntry({ title: "Have a symmetrical object named after you", url: "http://wildaboutmath.com/2009/12/20/have-a-symmetrical-object-named-after-you/" });

Cool caption crafting contest

Thursday, December 17th, 2009

Happy Holidays, everyone! I'll give $20 as an Amazon gift card (or PayPal cash) to whoever, in my opinion, comes up with the best caption for the image below. Click on the image to gain the full, mind-boggling, effect. The small piece of the image you see here doesn't do the ...

Crazy paper thing that’s easy to make

Tuesday, December 15th, 2009

What fun thing can you make with card stock and scotch tape? Check out this video and find out. [youtube]http://www.youtube.com/watch?v=fc1X8VJBfDA&feature=player_embedded[/youtube] Hat tip to Denise at Let's Play Math. SHARETHIS.addEntry({ title: "Crazy paper thing that's easy to make", url: "http://wildaboutmath.com/2009/12/15/crazy-paper-thing-thats-easy-to-make/" });

Very disturbing optical illusion

Monday, December 14th, 2009

I really like optical illusions. Until recently, my favorite was this one. But, I have a new favorite now. Here's one that bothers me. See if it bothers you. Look at the image below. Which square is darker, A or B, or are they the same color? A hat tip to John Cook ...

Great optical illusion

Tuesday, September 1st, 2009

Here's a great optical illusion I found at this URL. I don't recall how I got to the page. It might have been from a twitter link. This is a really cool illusion because, to my eyes, it looks like the circles cross. But, when I look closely I see that ...

MMM #17: The bishop and the king

Monday, October 13th, 2008

Doug Hull was randomly chosen as the winner for MMM #16 over at Blinkdagger. Congratulations, Doug! It's time for a new contest problem. As you may have noticed, I like counting and probability problems. I found an elegant one in an old book. I won't reveal what the book is until ...

“I will derive” hilarious YouTube video

Thursday, August 21st, 2008

Math can be fun. Really! Check out this video. [youtube]http://www.youtube.com/watch?v=P9dpTTpjymE[/youtube] SHARETHIS.addEntry({ title: "\"I will derive\" hilarious YouTube video", url: "http://wildaboutmath.com/2008/08/21/i-will-derive-hilarious-youtube-video/" });

Monday Math Madness #11

Monday, July 21st, 2008

MMM #11 is a variation on MMM #9. I promise I won't do any more variations on this problem after this one! Consider all of the 6-digit numbers that one can construct using each of the digits between 1 and 6 inclusively exactly one time each. 123456 is such a ...

Monday Math Madness #9

Monday, June 23rd, 2008

Last Friday Blinkdagger announced a winner for MMM #8. Here's MMM #9: Consider all of the 6-digit numbers that one can construct using each of the digits between 1 and 6 inclusively exactly one time each. 123456 is such a number as is 346125. 112345 is not such a number since ...

Monday Math Madness #7: We have a winner

Friday, June 6th, 2008

We have a winner for this seventh contest. Congratulations, Brent Yorgey! I'm delighted that Brent, of Math Less Traveled, won this one because Brent gives so much to students and readers of his blog. Brent - Enjoy your $25 gift certificate from our kind sponsor for this contest, the Art ...