Wednesday, April 05, 2006

Self Interest 1, Rawls 0

For the class today over at UNC, A. Rosenberg and I tried an exercise.

Not really a fair test of Rawls, but just thought we'd see.

We bought lottery tickets, enough for the whole class.

Before we handed them out, one per customer, we told the class they had to decide whether to (a) put all the class winnings into a pot, to be shared, or (b) each winner keeps his/her winnings. Alternative b won, about 2-1, in a class of 30.

Most people got nothing. Three people won a dollar. One young lady won $25. And got to keep it all.

So much for the Difference Principle....

Sunday, April 02, 2006

Parrish: The Thought

Carolyn Parrish watch.....

It has been more than a year now since I wrote about Carolyn Parrish

(excerpt: Carolyn Parrish: She stomped a George Bush doll, with boots (she had the boots, not the doll). On TV, on CBC-TV, in fact. Of course, the Missasauga (That's west of Toronto, just west of Etobicoke, actually) MP also critiqued the "coalition of idiots" Bush was leading in Iraq. Linda claimed that CP's real achievement was not getting ink for pounding Bush, but rather for finally getting Paul Martin (who kicked her out of caucus after much "Oh, my-ing") to make a decision on something. HE FIRED HER. I would say that this is a real achievement, but there is a deeper achievement to credit Ms. Parrish with. She hates Americans, but she sometimes talks to one, like Dorothy here. It seems clear that Carolyn Parrish is a loud-mouthed, impolite, unscrupulous self-promoting cretin. In other words, her real achievement is that SHE HAS BECOME an American, in spite of claiming to hate them.)

But...where is the old sea-hag now?

Well, she said this recently: "I think Canada's role in Afghanistan has morphed into something else now. It has morphed into an offensive role. I would prefer if we were involved in rebuilding and providing infrastructure."

Well, sure. Canada doesn't actually send much money to Afganistan. Or soldiers, for that matter. But wouldn't the world be a better place if people would just all get along? If Canadians in Afghanistan and Iraq would stop trying to defend themselves, and just go out and build some houses and roads....there's the ticket.

Streaming Video

When people say "streaming video", this is what they should mean. (If you have trouble with quicktime, there are other options here)

Note that the guys are actually trying. But the women, those few who would try it, are mostly just laughing at how ridiculous it must feel to be a guy, spraying things with Mr. Winkie.

Me? I want one of those target grids for the Mungo house, right away, connected to World of Warcraft. Can you imagine taking down infernals by remote streaming?

(Nod to Stefan. Only Germans can truly appreciate the absurd).

Saturday, April 01, 2006

Pre-publication bonus to M.E. readers

My newest essay on EconLib goes live soon.

But, it is up already, and you can check it out.

Excerpt:

The economists I talked to weren't really surprised.

"People don't understand opportunity cost. For that matter, they don't understand lots of other apparently simple economics concepts. That's why we should study economics more."

I'm not sure this is right. It reminds me of Bill Niskanen's (1971) observation about Ludwig von Mises. Niskanen argued that many people, including von Mises, were too optimistic, resting their conclusions on "the hope, almost pathetic in retrospect, that a broader education in economics will reduce the popular support for large government and the consequent pervasive bureaucracy."


ATSRTWT

Why Men are not Really Necessary II

So...to continue the theme of "Are Men Necessary?" (my lovely wife, surrounded by huge hulking maleness, is not convinced), more evidence that the answer is....

Even if they are, WTF?

Here is how it went down: We (my sons and I; always their fault, not mine) were reading about the famous urban legend of the JATO rocket car, also famed Darwin Award retraction.

So...we got to thinking. We had some toy cars, and we had some rocket engines. And some of the toy cars and rocket engines were of the same RELATIVE scale as the JATO car....so....


Well, you can see for yourself: the engine is attached using a bunch of masking tape. The engine is an ESTES type B, pretty small (may be 3 Newton-seconds)

Now, there are two problems, as even a quick glance reveals. The car is large enough that there is angular force being generated around an axis that passes somewhere through the middle of the car. More simply, the engine is mounted (just as in the JATO story) in a way that might very well induce rotation as well as forward motion.

Second, the tape is a pretty half-assed attachment technique. At a minimum, we should have used duct tape, and covered the front so it couldn't scoot out from under the tape.

Well, the rotation test is the problem to be solved: would the car begin to fly, or would it spin? Spin....that's the answer. Movie evidence (a short .avi file)

A question: how big would the rocket engine have to be for its mass to dominate? It is not clear that JATO car would ever have gotten off the ground, instead of just being force nose first into a horrific forward roll on the highway.

Another test, soon: Much bigger car, D-type rocket engine (12-15 Newton-seconds). Stay tuned.

UPDATE, from NP, who being male is also unnecessary:

I have no idea if you guys watch Mythbusters or not but they did this myth in the first season. They got some pretty good data.

I will see if I can find a video but here are some links with more info on the full scale test.

Link 1

Link 2

Where Everything Isn't Meant to Be Okay

Drove back past Camp LeJeune today, in Jacksonville, NC.

Lots, and LOTS, of "we want our boy back" (mostly; sometimes girl) signs on the fence as you drive along NC-24 past the base.

That's why I don't get the "I support the Iraqi resistance" folks. I know a lot of people in the military, officers and enlisted both. My dad was a captain in the regular Army, WWII, southern France.

You want to say the war is a mistake, or that Bush is a bad President, go ahead.

And if you want to say the REAL victims here are the Iraqi civilians, you may be right.

But the hate directed toward the soldiers trying to do an impossible job, I just don't get. And there are lots of people who really do fancy that they think American soldiers should justly die for the mistakes of an American President.

I am not one of those people. And they also serve who stand and wait....