Monday, June 04, 2007

Recently read (finally finished): Strange Beauty by George Johnson.

The sub-title is "Murray Gell-Mann and the Revolution in 20th Century Physics". It's a well-written biography of Gell-Mann, the brilliant, complicated character who gave us quarks, strangeness, the Eightfold Way, and other poetically named subatomic entities and schemes in particle physics.

Since Gell-Mann was such a force in theoretical physics and was among the best minds of the century, the book is also a primer on these subjects, and attempts to lucidly explain the difficult concepts. Outside of scientific circles, he is less famous than his Caltech colleague and sparring partner Richard Feynman, which is unfortunate when you consider his numerous achievements. He did win a Nobel Prize, though.

The book paints a vivid picture of life in those heady days, and we meet lots of prominent physicists, and it does a good job of balancing biographical details with physics. It's not just the story of a life, but the history of a life's work, positioned within a larger background of scientific enquiry as well. It's respectful of and sympathetic to it's subject, without hiding his pricklier sides. All in all, an interesting read, and a good example of what would be a pretty difficult book to write. Thankfully, due to the skill of the author, it's not a very difficult book to read.
Google Keeps Tweaking Its Search Engine
By SAUL HANSELL
Published: June 3, 2007, New York Times

The final page of this new article on the Google mystique gives more info on how it does search. Considering that we teach users about the search engine based on how we think it works, it is kinda good to know about how things have evolved.

Google does more and more for you, as the user. It does a lot of work in order to do that:

"Mr. Singhal has developed a far more elaborate system for ranking pages, which involves more than 200 types of information, or what Google calls “signals.” PageRank is but one signal. Some signals are on Web pages — like words, links, images and so on. Some are drawn from the history of how pages have changed over time. Some signals are data patterns uncovered in the trillions of searches that Google has handled over the years."

And it's not really simple, either:

"... words that seem related sometimes are not related. “We know ‘bio’ is the same as ‘biography,’ ” Mr. Singhal says. “My grandmother says: ‘Oh, come on. Isn’t that obvious?’ It’s hard to explain to her that bio means the same as biography, but ‘apples’ doesn’t mean the same as ‘Apple.’ ”"

So what does this mean for the average user? It's good news! Even if you mess up, Google still tries to help you, and even more than before. However, that doesn't mean that you can't do better if you put in 'better' (more relevant) terms in the first place. A lot of the search principles - facet analysis, chasing down references, etc., still apply. And as always, it pays to notice what results your search terms are throwing up, and adjust accordingly.
Wouldn't you love to have this job... playing Stradivaris every day.

Fingers That Keep the Most Treasured Violins Fit
By IAN FISHER
Published: June 3, 2007, NY Times