Sunday, May 25, 2014

Multiplying by drawing lines

Here is a cute little trick to multiply without knowing the multiplication tables.

Monday, May 5, 2014

The dangers of scientific consensus

From the Wall Street Journal, "The Questionable Link Between Saturated Fat and Heart Disease":
Our half-century effort to cut back on the consumption of meat, eggs and whole-fat dairy has a tragic quality. More than a billion dollars have been spent trying to prove Ancel Keys's hypothesis, but evidence of its benefits has never been produced. It is time to put the saturated-fat hypothesis to bed and to move on to test other possible culprits for our nation's health woes.