Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

These essential iPad apps should be on every user's radar. Each one adds clear value, covers a key need, and improves the ...

The seemingly unpredictable, and thereby uncontrollable, dynamics of living organisms have perplexed and fascinated ...

Lessons from my big investing mistakes are worth far more than the losses themselves. Check out how I'm turning past errors ...