rough equivalents header

Archive for the ‘Content’ Category

Parts Per Billion

Monday, May 19th, 2008

In the "Molecules of Caffeine" post, I calculated the number of caffeine molecules in a can of Mountain Dew. This lead reader Scott to e-mail me about the concept of parts per billion. For example, the Environmental Protection Agency has set their "action level" for lead in drinking ...

Nine Tenths of a Cent

Monday, May 12th, 2008

Gas stations in the USA have been selling gas at prices ending in 9/10ths of a cent for decades. Depending on who you ask, the practice dates back to the Great Depression or farther, and there are varying reasons given for it. The most often agreed-upon reason for ...

Molecules of Caffeine

Friday, May 9th, 2008

A Quick Announcement: Last Friday's "Your Weight In..." calculator has been updated to calculate the value of your weight in Spam, foie gras, and Snausages. This is in addition to your weight in gold, crude oil, lard, pretzels, pennies, and Hummers. And Now Back To Our Regularly Scheduled Programming... ...

A Thousand Words

Monday, April 28th, 2008

Graffiti in Sevilla, Spain. Neva Micheva, 2004.Source: Wikimedia CommonsWe've all heard the old adage: "a picture is worth a thousand words." I thought I'd use that as a jumping off point for today's post. If a picture is worth a thousand words, what's a thousand words worth... and ...

A Pool Full Of Pudding...

Monday, April 14th, 2008

This weekend I pulled out my trusty kitchen scale, a half-cup measure, placed the measure on the scale, zeroed it out, and began spooning in Jello Brand Chocolate Pudding from pudding cups I got in the refrigerated aisle. I wanted to determine the pudding's weight by volume, because I'd ...


Get an angel for your site An Angel Watches Over This Site
This blog uses a modified version of the Silver Light theme