## Wednesday, August 19, 2009

### CHAINS AND COMPARISONS (RE-POST...Math and Metaphor)

Dear Braintenance Buffs:

I had a high school teacher who was obsessed with "chain calculations" and "comparison calculations". These are simple but time- consuming arithmetic operations which are undertaken in order to convert or express one quantity in terms of another, or in order to support (or refute) an idea or argument. A simple one might be (just for example), "How many inches are in a mile?" This type of computation does have the benefit of giving us a sense of perspective.

With the help of some Search engines and a calculator, you may wish to answer the following questions:

1. How many Angstrom Units are there in one inch?

2. If Bill Gates were to divide his current net worth amongst the entire population of the United States, how much additional wealth would each of us have?

3. At today's prices, how many ounces of gold would it take to pay for a home valued at \$240,000.00?

Soon!

Faithfully,

Douglas Castle

p.s. The picture posted in the upper right-hand corner is not of Bruce Willis' character in "THE TWELVE MONKEYS". It is a retouched photo of a fellow (who looks somewhat like Bruce Willis) who would rather remain anonymous. We had lots of fun playing around with the photo, though.