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Scientists Find Tears Are the Anti-Viagra 207

An anonymous reader writes "The male test subjects didn't know what they were smelling, they were just given little vials of clear liquid and told to sniff. But when those vials contained a woman's tears (collected while she watched a sad movie), the men rated pictures of women's faces as less sexually attractive, and their saliva contained less testosterone. Is this proof that humans make and respond to pheromones? The researcher behind the study doesn't use that controversial word, but he says his findings do prove that tears contain meaningful chemical messages."

Comment Road wear is fourth power of vehicle mass. (Score 1) 891

Road wear-and-tear is the fourth power of vehicle mass.

Fuel usage is roughly correlated with vehicle mass. It isn't perfect, but heavy cars tend to use more fuel.

So they are starting with the fuel usage tax (roughly correlated with first power of vehicle mass). If you really want to tax people for the damage they cause for roads, they should move towards a *greater* dependence on vehicle mass (towards fourth power). Instead, they are moving in precisely the opposite direction.

This proposed change simply isn't rationale.

Comment Stranded energy is stranded for a reason (Score 2, Insightful) 899

They want to do all this using stranded energy-- wind or solar which no one uses because it is located in the middle of nowhere.

Their analysis makes no mention of the energy cost of transporting zillions of tons of limestones from the middle of nowhere to the ocean. Or, rather, to all the world's oceans (since we don't want to cause one region to spike in alkylynity.)

And if it doesn't cost that much money/energy to transport those zillions of tons of rock, then it presumably costs even less to transport the electricity (Electrons don't weigh that much). In which case, the resource wouldn't be stranded.

But, it is good to see people thinking about this sort of thing, however incompletely.

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