Tuesday, March 26, 2013

In memory of a great man

Paul Erdos was born a hundred years ago today.  He was perhaps the greatest mathematician of the twentieth century: certainly the greatest I ever had the privilege to meet, to spend time with, to do mathematics with.   I think that it's likely he'd make everyone's list of top ten mathematicians of all time (and with competition like Archimedes, Newton, Euler, Gauss, Hilbert, etc, that's a tough list...)

He was an amazingly gentle soul: he spent the last forty years or so of his life travelling the world, spending a week here, two days there, as Cambridge mathematician John Cassells put it: he was like a bumblebee, spreading mathematics as though he was pollinating.  He'd take news of a new theorem around the world, telling exactly the people who would know best how to extend it, use it, generalize it.

He died in 1996, at the age of 83.  And he is still much missed.

Yours, in memory,
N.

Tuesday, November 13, 2012

How many emails????

I was struck today by the claim that was made in the disgraced-generals-have-inappropriate-relationships case that there is a strange assertion floating around: that Kelley and Allen had 20000-30000 emails etc going back and forth (and that some of them were inappropriate).

Now, a standard work week in the US (2 weeks holiday, 40 hours per week) runs 2000 hours.  This means that assuming that they have been communicating for a couple or years, say, they are still sending an average of 5 emails per hour.  Now, over short periods I could see someone doing that, but over a sustained period, of months?

Wondering if Allen/Kelley both have verbal diarrhoea...

Yours, having an email load rather smaller,
N.

Monday, November 12, 2012

The Undead Hotel

A short story, by Boo.

The Undead Hotel

Today, my family and I are going on a Halloween vacation.  The hotel is called The Undead Hotel.  I guess it's called that because it's a theme for Halloween.

We've just been told our room number.  The person behind the counter told us that to get to our room, we have to go up some "possessed elevator."  Well, here we go.  My brother is about to press the floor number three button when "don't press that button." my mum say!  "Why?" Skibo asks.  Suddenly, he spots it.  There's a face on the panel.  It's a ghost face!  It starts moving.  We look around the cramped elevator and notice lots of other moving ghost heads.  My brother presses the button really fast and finally we're on the right floor.  We step out of the elevator and into a long hall. I'm starting to get a bad feeling about this place.

We walk down the long hall.  I see millions of wax statues.  I notice George Washington, Henry Hudson and Rosa Parks.  "Anybody hear something behind us?" I ask uncertainly.  We all turn around. "Ahhhhhhhhh!"
we all scream together.  There are wax figures following us.  I remember the man at the counter telling us to beware because there's danger lurking around every corner.  My family and I dash to our room.  We lock the door behind us.  I can hear the wax figures pounding at the door.  I can hear my heart beating as loudly as the wax hands at the door.  We all turn around to catch our breath.  Uh oh, the wax figures aren't our only problem now.

"Any body else getting the creeps?" I ask.  "Wow." James exclaims.  We can't hear the wax figures anymore, so we walk away from the door.   The room is so quiet, it's horrifying.  The room is full of zombie figures.  I see some in chairs and there's two on a bunk bed.  It looks like a zombie family.  I  see two zombies that look like kids, two that look grown up and, oh look, a zombie dog!  I thought that they didn't allow animals in hotels, but I guess they make an exception for zombies.  "This is so cool!" announces my brother.  "Shhh, don't talk so loud." I whisper to him.  Uh oh, it's too late.  The zombies in the bed began to sit up.  They got out of bed and headed our way.  The ones in the chairs followed them.  The dog started to bark.  "Brains, brains!" the zombies started shouting.  They were about to attack us when we ran right through the middle of their group.  "Look, a door!" I shout.  We run straight through the open door into a dark, smelly place.

We stumble around the dark place for a while, trying to find our way around.  "Ow!" I shout as I stumble over something on the floor.  I fall flat on my face!  Luckily, I fall on something soft and furry. "Grrrrrrrrr! I feel a slow rumbling underneath me.  Then, the object I am laying on, stands up!  I hear a growl coming from the object!  Finally my dad lights a match, and puts it in the lantern he found.  The whole room escapes with light.   I look around.  There's a fifteen foot bear standing on its hind legs in front of me!  Two tiny cubs stand beside it.  "Don't make a sound, and don't move!" Mama whispers.  The bears charge towards us. We make a run for it.  There's an opening at the end of the cave.  We run out right before the bears catch us.

Finally, we're out!  I never thought that I'd see the light again!  We're surrounded by millions of trees.  Wait, what's that lurking in the shadows?  Suddenly, something jumps at me from behind.  I duck down just in time!  Vampires appear from the shadows.  They slowly come closer and closer.  When they were just inches away from us, they took one whiff of us, paused, and flew away into the night.  I was puzzled by why they flew away, when, it hit me.  I remembered reading that vampires were allergic to garlic, and we had garlic bread for dinner, so we still smelled of garlic.  We have made it out of the woods, and are standing at the edge of a maze-like place.   I wonder what horrors await us inside.

We enter the maze.  I touch the hedge.  "Ouch!" I exclaim in pain.  Electricity shocks my whole body.  I fall to the ground in pain.  "Are you ok?" Dad asks with a worried look in his eyes.  "Yeah, I'm fine, just a little dazed." I answer in a small voice.  I stumble to my feet.  "Now let's get out of here!"  I announce.  I stumble around, still feeling dazed.  We walk around the maze for a while, feeling lost.  We come to a a few dead ends a couple of times.  I hear a groan coming from around the corner, I look up, up, up, and there stands Frankenstein!  "Grohhhhh!"  He groans again.  He walks toward us.  The ground shakes as he walks.  Thud, thud, thud, goes his shoes on the ground.  Now, this may seem asbsurd, but Skibo and I got these little water pistols for Christmas, and now we carry them everywhere.  So, we take out our water pistols and start shooting Frankenstein.  We short circuited him and as he fell to the floor, we ran around him and out of the maze.

Now we're standing at the top of a tube.  I think that it's a slide.  It curves and twirls around and around.  "Looks like this is the way out." James announces.  We each hop into the slide.  It twists, twirls and curves.  It takes us over small bumps.  Finally, at the end of the slide, we land in a small pit of sand.  "Yes.  We're outand I'm alive!" I shout, happy to see daylight again!  After everyone's out of the slide, we journey home, exhausted from our long adventure!

And now, a word from Boo's sponsor.  I'm thrilled by this!  It is so far beyond anything I was asked to do at the age of 10!
Yours, publishing her story, copyright Boo, 2012,
N.

I've been remiss in posting...

But tonight I have an incentive to post!  Boo had a writing assignment, due tomorrow, and sat down with me as she finished it.  She's to write a short story, a scary story: and I'm stunned by the job she's done.  I don't think I was expected to work at this sort of level until I was 12 or 13, not just turned 10!

Yours, thrilled,
N.

Friday, November 9, 2012

Happy Birthday, Boo!

Double digits!!!
Yours, parentally proud,
N!

Thursday, October 25, 2012

Bullshit!

Lawrence O'Donnell, on MSNBC this evening, talking up President Obama for re-election, spent many minutes discussing whether he could use the word the President had been reported as using to describe Mitt Romney: Obama used the word "bullshitter", which in the context of the lies and misrepresentations that the former Governor of Massachusetts has used seems rather tame.
But apparently the MSNBC lawyers are unwilling to let L O'D use that word on the air.
Such bullshit!

Yours, wishing that the US would lighten up a little (actually, a lot) where swearing on TV was concerned,
N.

Wednesday, October 24, 2012

Cycling

I love cycling.  I don't do it often enough, and I'm not particularly good at it.  I do it for fun, for exercise, not to race or compete.
But I have to say that I am sorry that international body in charge of cycling has taken all of Lance Armstrong's record from him.  I understand their view that he was cheating by taking steroids or other chemicals: it appears that it's undetectable still, so we don't know who else took it....

But my feeling is this: he brought such hope to cancer survivors: he was so inspiring to those who need hope: he took a "you're dying" diagnosis, and came back to show incredible resolve: I'd rather we never knew about the drugs.  I'd rather we still were all screaming his name, taking inspiration from his feat.
What he did was incredible, cheat or not.  Without the wins, we'd merely celebrate him as a mildly inspiring individual who went back to bike races.... and the inspiration would be nice, but mild.  With the wins, he had the potential to really inspire.  Now that those wins are gone, he's back to human.

Yours, missing when he could be considered stronger than any human I knew,
N.

Sunday, October 21, 2012

Nice conference

Spent a couple of days away at a conference: I was the first plenary speaker, and naturally I stayed around for the rest of the meeting.  I really enjoyed lots of talks --- mainly by undergraduates about research they had done, and felt good about encouraging them, and pointing them to new potential directions to examine.
I've received some wonderful mentoring in the past, from several directions, and it always makes me happy to be able to pay back some of this by passing the advice on forward.

Yours, suddenly realizing that I'm a "senior" mathematician, not a "junior" one any more.
N

Thursday, October 18, 2012

Getting stuff together

Spending a few minutes printing out an agenda, directions, hotel reservations, etc, in preparation for a trip tomorrow.  Off to give a conference talk:-)

Yours, sure to forget something,
N.

Wednesday, October 17, 2012

A more enjoyable debate last night

As a committed leftie, last night's Presidential Debate was rather more fun to watch than the previous bout between these two: as much fun as the VP version last week.

Yours, hoping this helps the polls swing Obama's way a bit,
N.

Tuesday, October 16, 2012

Ooops

I miss a day of posting, and suddenly it's nearly a month that's gone by.  Oh well.  I won't pretend and catch up: let's just see if I can restart.

Yours, jolted,
N.