Solar system model for your classroom ceiling

In my physics classes at Carondelet High School, I had mostly seniors and a few juniors in each class. Seniors graduate two weeks early, so I’m always looking for a project for the juniors to...

How close are you? The “Why” behind Percent Error

There’s an old saying, “Close only counts in horseshoes and hand grenades.” People would say this in response to someone saying “Well, I was close.” So, why does close count in horseshoes and hand grenades,...