Learn about semivariance, a key metric for assessing a portfolio’s downside risk. Understand its formula and how to calculate potential negative variations below the mean.

You can count macronutrients with apps or a written food diary. Learn how to count macros if you’re trying to lose weight or gain muscle.

Consumers often assume “use by,” “best by” and “sell by” have fixed definitions and are used consistently across the food industry. In reality, there are no uniform or universally accepted definitions ...

Say you lived in a country that has sky-high HPV vaccination coverage plus a uniform cervical cancer screening program. A new study suggests that, depending on when you got your shots, you might only ...

Frigid temperatures are set to continue over the next several days before another blast of arctic air spreads from the Plains to the Southeast Friday, Jan. 30, into Saturday, Jan. 31, with record low ...

“Best by,” “use by,” “sell by” and “best if used by.” These are all labels California retailers use to show how long a food product is at its “best quality.” With so many different labels to consider, ...

2025 saw a huge amount of attacker innovation when it comes to phishing attacks, as attackers continue to double down on identity-based techniques. The continual evolution of phishing means it remains ...

Does the persuasive power of AI chatbots spell the beginning of the end for democracy? In one of the largest surveys to date exploring how these tools can influence voter attitudes, AI chatbots were ...

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 ...

UPDATE: What Will Montclair’s 2026 School Deficit Referendum Cost You? Do the Math with Our Calculator Montclair Public Schools have scheduled a Dec. 9 referendum seeking taxpayer funds to cover a ...