Archive for date: March 20, 2006

On Converting Celsius to Fahrenheit and Back

March 20, 2006 | Math | By: Mark VandeWettering

I pride myself on being able to carry out calculations in my head that cause most people to go for the calculator. Need to calculate a 15% tip? Divide the total bill by 10, and then divide by 2, and then add the results. Easy. Sometimes while exercising on a bike I try to factor […]

Spring is Here!

March 20, 2006 | Astronomy | By: Mark VandeWettering

Well, today is the the vernal equinox, known more informally as the first day of spring.  It’s a blustery, rainy day here, and it probably would have gone unnoticed by me except for the mention on Phil Plait’s Bad Astronomy Blog.  The equinoxes are a busy time for Phil, who debunked the idea that on […]