Recent Comments

1. almost 7 years ago on Brewster Rockit

   Frequency of the orbit is inversely related to the period of the orbit. Period squared of the orbit is directly proportional to the average radius of the orbit cubed; the ratio is determined by the mass of the star being orbited, not the planet. Orbital velocity, as described by Newton, depends on the mass of the star alone. If this were not the case, every time an astronaut exited the ISS, they would immediately acquire a different orbital velocity around the earth than the station.

2. over 8 years ago on Frazz

   We’ll quit whining when you don’t quit after teaching with us for five years.

3. almost 10 years ago on Doonesbury

   Actually, Elizabeth Freeman used this precise argument (written into the Massachusetts constitution) to sue for her freedom.

4. almost 11 years ago on Calvin and Hobbes

   Those who can, teach.Those who can’t get higher paying jobs.

5. about 11 years ago on Non Sequitur

   STEM is good and necessary (I teach HS Physics (where do you demo?)) for an industrial nation, but STEAM – Science, Technology, Engineering, Arts and Math – is vital for civilization and a vibrant, living educational system. (Also smaller class sizes and treating teaching as a highly respected and desirable profession).