"That's OK, I hate canaries anyway"

It's using openframeworks (openframeworks.cc) an open source, cross platform c++ toolkit (which I am helping develop). the source code for the car tracking software is here:

http://www.openframeworks.cc/forum/viewtopic.php?f=12&t=...

and you can check out openframeworks at

http://openframeworks.cc

http://openframeworks.cc/download

It was quite fun to work on this -- the driver and type designers blew me away with how good they were.

You could begin by sourcing your claims :) I wrote my reply casually, based on my knowledge of the law, statistics, studies, and a number of personal anecdotes. This time, I'll source myself and provide links to official statistics and the actual law this time, as you're mistaken on a few counts.

> 1) ...The validity of a prenuptial agreement is measured at the time it was signed, unless extraordinary circumstances justify re-evaluating it at the time of divorce...

This is simply not true. For instance, here's the California legal code:

"Any provision in a premarital agreement regarding spousal support, including, but not limited to, a waiver of it, is not enforceable... if the provision regarding spousal support is unconscionable at the time of enforcement."

California Family Code, Section 1612.7, part c. Convenient link here:

http://law.justia.com/california/codes/fam/1610-1617.html

That hinges on the word "unconscionable"? In the real, practical world, that means that SUBJECTIVELY THE JUDGE DOESN'T THINK IT'S RIGHT BASED ON AMERICAN VALUES. Yes, that's actually how it goes.

Edit: Here's the legal definition and some discussion of unconscionable for curious people. Practically, it leaves it up the judge's... conscience. Subjective.

http://legal-dictionary.thefreedictionary.com/Unconscionable

> 2) Spousal support -- does not include money for the children.

Correct. If the woman sues for full custody, and gets it, she gets more than equalization of income. Therefore, pressing for full custody and no father's custody rights = more money. Big problem.

> Interlude: Nas. Nas is a millionaire. He had a kid, with a woman, and lived a lavish lifestyle. B/c of that, on divorce, his wife and kid get to continue living a lavish lifestyle via alimony (wife's standard of living during marriage) and child support (child's standard of living during marriage).

Right, I think that's crazy. He had her to host parties for him, cook for him, keep the home, help him keep his finances. All of that is gone. His quality of living will go down, it is shot, he no longer receives enjoyment of having his child around to play with when he comes home from a hard day. She's used to living a $150,000 per month lifestyle and thus deserves to keep it? He's used to having a supportive wife behind him, that keeps the home, that helps, that he can bounce ideas off of. That's gone. He should pay her close to $2 million a year because it'd be a shame for her quality of life to go down while his is getting shot up? The system is crazy.

> Lesson to learn: If you're rich, live a normal lifestyle and you won't pay (relatively) much in support.

So then you live modesty, and save, and invest, and the assets are split 50/50 if you divorce instead. Not much better.

> 5) The divorce rate for...

A lot of the statistics overlap and there's a lot of noise there, but divorce rates are high here. For instance, "The National Center for Health Statistics recently released a report which found that 43 percent of first marriages end in separation or divorce within 15 years. The study is based on the National Survey of Family Growth, a nationally representative sample of women age 15 to 44 in 1995. Bramlett, Matthew and William Mosher. "First marriage dissolution, divorce, and remariage: United States," Advance Data From Vital and Health Statistics; No.323. Hyattsville MD: National Center for Health Statistics: 2 1.

http://www.divorcereform.org/rates.html (first one in Google for "divorce rates", looks relatively unbiased and cites sources)

The divorce rates are high in the States. Subjectively, I think it'd be a good thing if they were lower and would lead to more individual happiness and a stronger society on the whole. You can debate how high the rates are when controlling for certain statistics, but they're clearly really way too damn high (again, in my subjective judgment).

> 5) Harsh divorce laws discourage divorce.

Yes and no. Harsh divorce laws against both partners discourage divorce. Harsh divorce laws against one gender increase divorce. One quick and dirty way to figure out which side a country's divorce laws are slanted is to look at who initiates divorce proceedings by gender.

United States? Over 2/3rds initiated by women. It's close to 70%.

http://health.discovery.com/centers/loverelationships/articl...

I tried searching divorce rates by country to find the statistics for you, but I couldn't find a link - so this is going off personal recall, but I remember seeing some crystal clear statistics. Divorce rates close to 50/50 in much of Continentinal Europe, slanted 70/30 men in many Islamic countries, and 70/30 women in the USA and UK. Those are just numbers - but my subjective judgment call? Things are messed up here. I ended my original comment with a statement that wasn't quite right. I'll amend it:

If the laws were made less brutal to men, I think you'd see more people marrying, marrying at an earlier age, having more children, and paradoxically - I think the divorce rate would go down.

A few planes have been built with the Coanda effect in mind (http://en.wikipedia.org/wiki/Boeing_YC-14), but in general it isn't very important.

Windmill blades and airplane wings have a lot in common.

I wrote some python software for it to model the curvature and get an idea of how to get the maximum effect out of a blade cut from a given blank.

The neat thing was that without the software being interactive we'd have never clued in to some of the possibilities.

In case anybody is interested here is a snapshot of the python program:

http://pics.ww.com/v/jacques/renewables/windmill/snapshot3.p...

That's insane! More than 80% of construction workers are still employed? We were only building ~25% too much?

I would expect the construction sector to shrink by something more like 50%.