Monthly Archives: December 2017

Mass changing orbits

Posted on December 28, 2017 by Andy Rundquist

A few weeks ago my good friend John Burk posted some intriguing questions about what happens to planetary orbits as the sun loses mass (all that heat has to come from somewhere!). I’ve been thinking about it ever since and … Continue reading →

Posted in general physics, mathematica, physics | 2 Comments

What are integers

Posted on December 17, 2017 by Andy Rundquist

This morning over the breakfast table my family had a great conversation about integers It started when my youngest, L (5th grade), talked about his math test tomorrow. He said the whole chapter was easy and that he wasn’t worried … Continue reading →

Posted in math, parenting | 4 Comments

Snow wave

Posted on December 10, 2017 by Andy Rundquist

Earlier today I posted this pic and asked a question about it on twitter: What determines the wavelength of the snow pattern? pic.twitter.com/KqPKla2IIJ — Andy Rundquist (@arundquist) December 10, 2017 If you click through you’ll see lots of great ideas. … Continue reading →

Posted in physics, teaching, Uncategorized | 7 Comments