Tag: Space exploration

• Finding Mass Without a Scale

  What is Mass? When I teach any introductory-level course, I always ask my students to list the important fundamental properties an object can have — properties that are unchanging under ordinary conditions. They always remember to list mass, though they don’t always remember what mass is. That’s perfectly understandable: mass is one of those fundamental…

  Matthew R. Francis

  July 21, 2011

  Astronomy, Astronomy, Physics, and Related Fields

  Astronomy, Space exploration