This month’s weblog posts

Greetings and hello.

This is a list of weblog posts for November 2001.

11/28/01; 1:01:26 PM: There's a picture of me on this Google Image Search. Can you spot it?

11/27/01; 2:39:48 PM: Robert Frost. “A liberal is a man too broadminded to take his own side in a quarrel.”

11/21/01; 12:42:38 AM: Malcolm Forbes. “Men who never get carried away should be.”

11/20/01; 7:10:28 PM: Susan Ertz. “Millions long for immortality who do not know what to do with themselves on a rainy Sunday afternoon.

11/18/01; 11:11:20 PM: Dwight D. Eisenhower. “I can think of nothing more boring for the American people than to have to sit in their living rooms for a whole half hour looking at my face on their television screens.”

11/17/01; 11:53:17 PM: What's 153 divided by 17? It's 9. Why do I care? Read on…

11/17/01; 11:46:40 PM: Brent explained on Tuesday how to easily tell if a number is divisible by six. There's a good way to tell also, if a number is divisible by nine: Add all the digits up, and if the sum of the digits is divisible by nine, then the number is divisible by nine too.

So if you have a very large number, like 891,245? Is it divisible by nine?

  • Is 891,245 divisible by 9?
  • 8+9+1+2+4+5 = 29
  • Is 29 divisible by 9? Nope, so:
  • 891,245 is not divisible by 9.

    But what if you have a really big number? Well here's a cool trick: You can get recursive. If the sum of the digits is too big to figure out in your head if it's divisible by nine, you can add the sum of the digits of the sum of the digits, and see whether that's divisible by nine. Here's an example::

  • Is 578,459,126,354,851,649,325,124,878,990,003 divisible by 9?
  • Sum of digits: 153
    I don't know off the top of my head if 153 is divisible by 9, so I'll sum the digits again:
  • 1+5+3 = 9
  • Is 9 divisible by 9? Of course it is, so:
  • 578,459,126,354,851,649,325,124,878,990,003 is divisible by 9.

    Guess what — it works for 3 too. Oh, and by the way, 153 divided by 9 is 17.

    11/17/01; 2:24:22 AM: Shhhhhh…

    11/17/01; 2:20:09 AM: Dave: “One of these days I'm going to be the first Dave on Google.” No small feat, considering just how many Dave's there are out there… ;->

    11/17/01; 2:17:43 AM: Wired: Computer Optics Not an Illusion. “Photonic crystals, which use photons instead of electrons as the marker for representing digital 0s and 1s, promises both reduced sizes and drastically increased computing speeds.”

    11/17/01; 2:14:52 AM: Woody Allen. “Most of the time I don't have much fun. The rest of the time I don't have any fun at all.”

    11/17/01; 2:12:15 AM: Dave Winer: “What is XmlDataSource.Com?Looks like a whole bunch of JavaScript whooie to me, but I might think differently if I knew what it was actually doing…

    11/16/01; 11:56:05 AM: Dave Winer: What are weblogs? “Personal Web Publishing Communities. Four very key words. Let's go through them one by one.”

    11/12/01; 1:49:54 AM: Adam Curry: “SourceForge was a beautiful collection of developer tools like bug tracking, cvs, web, support, forums, polls, news etc. All Free. Now the site's owner VA Linux has turned the tables somewhat.”

    11/12/01; 1:48:35 AM: George Carlin. “Well, if crime fighters fight crime and fire fighters fight fire, what do freedom fighters fight? They never mention that part to us, do they?”

    11/8/01; 3:31:08 PM: Clyde B. Aster. “When someone tells you something defies description, you can be pretty sure he's going to have a go at it anyway.”

    11/7/01; 11:07:48 PM: David Letterman. “There's no business like show business, but there are several businesses like accounting.”

    11/3/01; 10:49:37 PM: Getting Aid to WTC Workers. “In the days following the terrorist attacks, delivering assistance to World Trade Center rescue/recovery workers was haphazard. But a new, streamlined network is helping get things done. Michelle Delio reports from New York.”

    11/3/01; 10:46:28 PM: Woody Allen. “What if everything is an illusion and nothing exists? In that case, I definitely overpaid for my carpet.”