Living in the United States today is not without its challenges, financially speaking. In an article dated March 9, 2008 Reuters reported that the average price for gas is $3.20 per gallon and it is i...

by Philip Yaffe Growing up in the United States in the 1950s, I was used to such things as inches, feet, yards; ounces (liquid and solid), pints, pounds, etc. Then I entered my first physics cl...