That sunset that finally shone over Chicago when the winter storm had finally subsided after clobbering the area this weekend is hardly a distant memory, but already, the area is preparing for another ...

I was looking over the week’s posts on Hackaday – it’s part of my job after all – and this gem caught my eye: a post about how to make your own RP2040 development board from scratch. And I’ll admit ...

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 ...

This is an updated version of a story first published on May 5, 2024. For many high school students returning to class, it may seem like geometry and trigonometry were created by the Greeks as a form ...

A small p-value often means the observed data effect is statistically significant. Set a significance level to compare with the p-value to validate investment hypotheses. Utilizing p-values in Excel ...

Learn how to calculate a stock's intrinsic value step-by-step, using Apple as an example. Discover Warren Buffett's method for smart investing! Predator who kidnapped, murdered sleeping girl becomes ...

Nernst's theorem—a general experimental observation presented in 1905 that entropy exchanges tend to zero when the temperature tends to zero—has been directly linked to the second principle of ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

Stocks' face value is their original listed value; bonds' face value is what's paid at maturity. Face value affects bond interest (coupon rate); buying undervalued bonds can boost yields. In the ...