Archive for January, 2009
This paper has been all over the news recently. The 2D:4D ratio is the ratio of the length of your second finger to the length of your fourth finger. This ratio, on the right hand, is found to be lower in males on average, and is correlated with prenatal testosterone levels. It has been found [...]
Filed under: biology | Leave a Comment
The right way to interpret MPG
The fuel efficiency of a motor vehicle is popularly measured by miles per gallon (MPG). The ubiquity of this measure is such that the price people are willing to pay for a car is linearly correlated with the car’s MPG value. But, if you want to save the environment or reduce spending on fuel, the [...]
Filed under: environment, mathematics | Leave a Comment
The authors of this study analysed a cross-region and cross-restaurant chain sample of fast food for specific carbon and nitrogen isotopes. The carbon isotope in question, 13C, is known to occur more commonly in corn-fed beef than in grass-fed beef, and also more commonly in corn-fed chicken than in cereal-fed chicken. Their analysis of beef [...]
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