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 ...

While the rule of 72 is a useful rule of thumb to estimate investment returns, using an online calculator or a compound growth formula may yield more accurate results.

A chi-square (χ2) statistic is a test that is used to measure how expectations compare to actual observed data or model results.

ITA Matrix is an advanced search tool that helps narrow down flight availability based on a number of specific factors. Here's what you need to know about it.