JamulBlog
Thursday, July 19, 2007

Random Numbers

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Here's a fact that surprises many people – even many computer professionals: one of the most difficult challenges for a computer system ...

The Real War

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Strategy Page has an excellent article about the pervasive corruption in Middle Eastern governments, and the challenges of cleaning it up. ...

Unintended Consequences...

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Last fall, California's voters – by a 70% majority – passed “Jessica's Law”. This law makes it illegal for sex offenders to live wi...

Cruelty in Santa Rosa

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This morning's news includes a hard-to-believe story of animal cruelty : two 15 year old girls setting a trapped 8 week old kitten on fi...
Wednesday, July 18, 2007

Color Perception

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The way we perceive color is very different from what you might think (if you've ever thought about this at all!). When someone with no...
Tuesday, July 17, 2007

Before and After

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This evening I sat down to start restoring a fine old Dring & Fage slide rule, and I finally remembered to do something I've been me...

Fowler's Universal Calculator

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This is a fine example of a watch-style circular slide rule, albeit a very large one – it is 87mm (about 3½ inches) in diameter. Click on...

Hit And Run Wreck

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Via NBC San Diego, this news (more photos here ) of a hit-and-run wreck that seriously injured a mother of four, but spared her kids: Polic...

Would You Be Useful?

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Imagine you could travel back in time … say, a couple thousand years. Would you be able to teach people about technologies that are now comm...
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Keuffel & Esser 1744

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This slide rule (click to enlarge the photo at right) was made around 1897 and sold by Keuffel & Esser. It may have been actually manuf...
1 comment:

Photo of the Day

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I thought you loved me!

Evaporative Cooling

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Each summer we depend on our air conditioner to keep our home's temperature at a livable level – otherwise it would be 100°+ in the hous...
Monday, July 16, 2007

Orbital Mechanics

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Maneuvering a spacecraft in orbit requires some tactics that most of us would find counter-intuitive. This morning I got to pondering exact...

Reaper

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Today's news includes a new weapons deployment : the MQ-9 “Reaper” (aka “Predator B”) is being deployed to Afghanistan and (a little lat...

The Confession

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Jim M. sends this along: It started out innocently enough. I began to think at parties now and then – just to loosen up. Inevitably, though...
Sunday, July 15, 2007

Quote of the Day

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Skippy (of Enjoy Every Sandwich) clearly understands New Jersey very well (and that's an escaped New Jerseyite's assessment): New Je...

Barking Mad Englishwomen...

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Rod Liddle's latest piece (in the London Times) is a great example of British humor at its finest. He skewers the BBC over recent even...
Saturday, July 14, 2007

Fortress Update

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Last October – nine months ago, I engaged a contractor to build a “safe house” on our property. This would be an all-concrete and complete...

Brotherly News

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My brother Scott was in the news today. He planted a “century plant” ( agave americana ) in Virginia Beach several years ago, and it has th...
Friday, July 13, 2007

Poll

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Google just added a new feature to its blogs: polling. Just as an experiment, yesterday I put up a poll about a simple science question: why...
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