April 2012 archive
bee on short final to flowers of Robinia pseudoacacia
After a recent exchange about the sad state of—well, it doesn't really matter what—one of them wrote,
I would move to New Zealand, but I am stuck because of the kids.I don't think he would do it. Or: if he didn't have kids, he'd find another excuse. I say this as someone who has, on occasion, been fed up enough with US politics to have said I was tempted to leave. Not having kids, I had a different excuse.
It all reminds me of a line from Nietzsche:
The thought of suicide is a powerful solace: by means of it one gets through many a bad night.<! from _Beyond Good and Evil_, as translated by R. J. Hollingdale. Original: Der Gedanke an den Selbstmord ist ein starkes Trostmittel: mit ihm kommt man gut ueber manche boese Nacht hinweg. >Capybaras that look like Rafael Nadal. I didn't get to visit the Rohloff factory back in 2002 because they were closed for vacation at the time I was visiting friends in Germany. I wanted to visit Rohloff because I like how they brought an innovative product to market, built it as well as they knew how to, and didn't follow prevailing fashion in their industry.
Their product is an internally-geared bicycle hub, the bicycle-industry fashion they didn't follow is light weight at the expense of durability, and can I also say I like it because it's available in red?
I'd also love to visit the Fazioli factory in Italy. They are an upstart piano maker that has pioneered innovations that a number of pianists think make a real difference in the sound. My hat is totally off to Mr. Fazioli for his vision and for his openness. He takes pride in pointing out the features of his pianos--with the refrain "nobody else does this"--yet he chose not to get all the patents he could:
"To patent costs a lot of money and it is absolutely not important. People who want to copy, copy."It's also nice to see spirited competition in an industry long dominated by one player—Steinway—that's known for being less than gracious to artists who don't want to play their piano exclusively.
Since I made my marimba, I've thought of a design change, something no one else is doing, that I think might make for a better instrument. Maybe some day I'll make some experiments, not that I want to get into the marimba business (the market is thin; not a lot of people play marimba). Today, a puzzle.
100 prisoners' names are written on slips of paper and placed randomly into 100 boxes. That is, each box contains one piece of paper with the name of one of the prisoners. The boxes are placed in a row on a table in a room.
The 100 prisoners are told they will be let into the room one at a time and each prisoner will be allowed to look into 50 of the 100 boxes. He gets to choose which 50 boxes to look into. The goal is for each prisoner to find the box that contains his name.
Prisoners may agree on a strategy in advance, but each prisoner must search for his name alone. No prisoner-to-prisoner communication is permitted once the searching starts.
As an incentive, the prisoners are told that if they all succeed in finding their names, they will all be released; otherwise they will all be executed. (This is hardly the first time a logic puzzle has used a prison/death theme for dramatic effect.)
No matter what strategy is chosen for the group, the first prisoner has a 50‑50 chance of finding his own name. This follows from the names being placed in boxes at random and the prisoners having no hints as to how it was done.
With no strategy—i.e. if all 100 prisoners choose boxes randomly and independently—they would be, for all practical purposes, doomed. The probability that they'd all find their own names would be ½100, or .00000000000000000000000000000078886... . <! 0.00000000000000000000000000000008 erroneously given elsewhere >
The question is, how good a joint strategy is possible? With an optimal strategy agreed on in advance of the searching, what is the probability of all prisoners finding their own name?
Other versions of this puzzle tell you what probability is possible with a good strategy and ask you describe what the strategy is. I thought it'd be fun to not give away what success rate is possible and to see what people estimated. But feel free to describe a strategy if one occurs to you. earlier today--
There are many things I could say about the Long Island Press, but I'll just mention that it carried <! http://en.wikipedia.org/wiki/Heloise_(columnist) >Heloise, a syndicated household advice column which—in an installment that made a lasting impression on me—said to put your plastic plants in the shower to rinse dust off of them.
The Long Island Press went out of business a year after I graduated from high school, after having published for 156 years.
Heloise, on the other hand, is still kicking. From her web site, a sample tip about textbooks: "If you buy used, look for ones in good shape and with not much underlining or highlighting. You do not know if the person,<! sic; comma present in original > who did the markings was smart or not!"
Anyhow. This has been a roundabout way to introduce the first in a series of Tommyjournal household hints postings.
You already know that single-edge razor blades have all kinds of uses. But how to keep them handy, so you can easily grab one from the not-so-sharp side? Well, they stand on their edge on the backs of speaker magnets! Next time you blow up a tweeter or just upgrade your speakers, you've got a razor blade stand.
<! tweeter from circa 1977 >