John Milnor wins Abel Prize

Just two days ago, the Norwegian Academy of Science and Letters awarded mathematician John Milnor the 2011 Abel Prize. Though it was just awarded, the prize is in recognition of decades of work. Here’s a link to the short piece on NPR show All Things Considered. And here’s a direct link to the Abel prize website.  And here’s a snippet from the Scientific American article:

Dimension-Cruncher: Exotic Spheres Earn Mathematician John Milnor an Abel Prize

His discovery that some seven-dimensional spheres look different under the lens of calculus spurred decades of research in topology.

John Milnor, an American mathematician best known for the discovery of exotic hyperspheres, was awarded the 2011 Abel Prize, the Norwegian Academy of Science and Letters announced March 23.

Milnor, a professor at Stony Brook University in New York State, got a call at his Long Island home at 6 A.M. informing him he was receiving the $1-million prize—an honor first awarded in 2003 as mathematics’ answer to the Nobel Prizes. “I knew I was a possible candidate, but I certainly didn’t expect it,” says Milnor, 80, who had already earned numerous awards during his career, including a Fields Medal in 1962 and a Wolf Prize in 1989. Milnor is the second consecutive American-born Abel laureate; the 2010 prize went to John Tate of the University of Texas at Austin for his contributions to number theory.

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The reason I’m linking to lots of other sources is because I don’t understand Milnor’s results very well :-). But it sounds impressive.

[Hat tip: Raynell Cooper]


πhone number

 

Try dialing (253)243-2504. Go ahead. Do it now. It’s free and fun!

Christopher Poole has set up this dedicated phone number and when you call it, an automated voice reads you the digits of π. Very cool :-).

Here’s more info, courtesy of Mike Nathan at Hackaday:

As you well know, today is March 14th – aka “Pi Day”.

Celebrated in math classrooms around the country, this truly is a celebration that belongs to the geeks. Here at Hack-a-Day, we too love Pi day, though we might not outwardly celebrate it with as much gusto as expressed by some of our readers.

[Chris Poole] is one Hack-a-Day fan who knows how to make the most of this mathematical holiday. He has put together a neat SIP-based phone service that reads Pi aloud to anyone who calls. He is running Asterisk in combination with Perl to read off the numbers, and is using a free SIP DID number to accept the calls. We gave it a shot earlier today, and were greeted by a gentle synthesized voice reading off the numbers of Pi. We’re not sure how many digits it is programmed to handle, as we stopped after about 20, so give him a call and let us know how many digits you make it through.

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And here’s a direct link to Christopher Poole’s website.

 

Obligatory π Day Post

Happy π-day.

 

We had lots and lots of pie, cookies, chips, cheese balls, and other ’round’ snacks today. A fun excuse for a party :-). I showed them a powerpoint with some interesting facts about π. One of my classes even got to whoop and holler at 1:59:26.

I showed some of my classes this:

[youtube:http://www.youtube.com/watch?v=nmXkDbGdD4Q&feature=player_embedded&rel=0%5D

 

And I showed one of my classes this, which was put up just today by Vi Hart (bonus: see if you can find the small error in this video):

[youtube:http://www.youtube.com/watch?v=jG7vhMMXagQ&feature=player_embedded&rel=0%5D

 

I’m not sure where I stand on the whole Tau thing. I do think it helps with learning the unit circle and trig values. But I’m not convinced it makes most formulas simpler. And history is a force to be reckoned with. There is lots of mathematical notation that could use some revision, I suppose.

 

Khan Academy

I’ve mentioned Khan Academy before, asking “could your math teacher could be replaced by video?

Here’s Salman Khan’s TED talk from just a few days ago. I simply love this idea. I’ve been using catchupmath.com with a few students, but this seems even larger in scope. It’s extensive, not just limited to math, free and open, and very powerful. I’d really like to try this.

If you haven’t been to Khan Academy yet, you need to go there now. Check out the videos, do some practice problems. I did a bunch, and it was a bit addictive. You even get points and badges!

I’m going to really think about this: can lecture happen outside of class and practice problems happen IN class?

Congratulations, Ray!

In follow up to my post from Tuesday,

Congratulations to Raynell Cooper who won big last night in the final match of the Jeopardy Teen Tournament!!

From Jeopardy.com

Here’s an excerpt from the press release on the Jeopardy website, at which you can also watch a video interview with Ray:

CULVER CITY, CALIF. (March 2, 2011) — Raynell Cooper, a senior at Richard Montgomery High School from Rockville, Md., has won the “Jeopardy!” Teen Tournament, earning the $75,000 grand prize.

Regarding his win, Cooper said, “It was unreal. I honestly didn’t think I’d make it that far.” He added, “I’m so happy that all my hard work paid off.”

One of the major highlights for Cooper was seeing Alex Trebek in person. He said, “I don’t get the chance to see celebrities often, so it was pretty amazing.” He also enjoyed meeting his fellow contestants. “We all got along wonderfully. They were excellent players and incredible people.”

Cooper, 16, hopes to attend George Washington University and will use his earnings towards tuition. He also plans to buy a car and donate to charity to help underprivileged youth in his community.

In his spare time, Cooper enjoys participating in his school’s drama club. He is also captain of the academic team and student government vice president.

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