Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I ...

The molecular hydrogen ion H₂⁺ is the simplest molecule. This simplicity makes it a perfect study object for physicists, as ...

The Hyperice X2 Knee delivers compression plus hot and cold therapy in one device, designed to ease soreness, stiffness and ...

To calculate the simple interest you’ll earn in a savings account, multiply the account balance by the interest rate by the time period the money is in the account.

What's adjusted gross income, also known as AGI? Here's what to know about this important income tax calculation.

Protein has numerous health benefits. But how much should you actually be eating? It depends on a few factors. Here's how to calculate.

The number of Python Challenge participants has fluctuated through the years including a high of nearly 1,600 in 2013. Meet the 2025 winner, Taylor Stanberry.

Excel and Google Sheets have three functions to calculate the internal rate of return: IRR, XIRR, and MIRR. Learn how these functions can calculate investment returns.

The debt service coverage ratio (DSCR) is used to measure a company’s cash flow available to pay current debt. Learn how to calculate the DSCR in Excel.

Taylor Stanberry competed in her first Florida Python Challenge in July and became the first female to win the ultimate grand prize.