Random links

Copying in Patent Law
The need to protect independent invention - it's pretty common for multiple inventors to come up with something similar at roughly the same time (e.g. lightbulb, calculus, telephone, jet engine) - "We find that a surprisingly small percentage of patent cases involve even allegations of copying, much less proof of copying. Copying in patent law seems to be the exception, not the rule." (HT: MR)
Where the Church Belongs: Worldview Hits the Streets
Picked this up from a site usually highly cynical about Christians. On a related note, just a couple of days back I came across an article in the local paper talking of (a Christian) group involving in downtown revitalization, turning a building heavily involved in the drug trade into affordable housing.
Soldiers don fake belly, breasts to better understand pregnant troops' exercise concerns
Somehow I suspect that pregnant women don't make particularly effective soldiers. Perhaps the women in the US army might be more likely to get pregnant though than the average woman out there - looks like about 12.3% of deployed women in the Navy were redeployed due to pregnancy in 2002.
Class, Caste, and Genes
How a meritocracy can produce something close to a caste system in just a few generations, given that people tend to marry those similar to them.
U.S. Agency Is Ordered to Change Wind Rules
It looks like the Bonneville Power Authority is being forced to implement negative pricing in which consumers may at times be paid to consume power. The problem: the hidden payments for wind turbines, which see a subsidy per unit of energy produced in addition to the normal prices paid to producers for electricity (which means that they can generate a profit by paying you to take the electricity they produce).