The Arizona Diamondbacks hosted Gov. Katie Hobbs at a bill-signing ceremony before their game against the Texas Rangers.

Research shows smart study beats long study for math formulas. Retrieval practice and spaced repetition are key. Quizzing helps more than re-reading. Spacing out reviews improves retention. Mixing ...

Scene video at a Tempe business shows where an HVAC worker was electrocuted on Sept. 8 while servicing a building near ...

Mathematics for CBSE Class 9 introduces many foundational concepts that serve as building blocks for higher classes. Topics such as algebraic identities, the surface areas and volumes of 3D shapes, ...

While building a simpler model for particle interactions, scientists made a sleek new pi. Representations of pi help scientists use values close to real life without storing a million digits. The ...

The White House’s new tariffs announced Wednesday were pegged to amounts it said other countries impose on the U.S. In many cases, those amounts appear to match a basic formula: the size of a ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

This is an updated version of a story first published on April 27, 2025. The original video can be viewed here. Evidence has emerged that could change our understanding of the 9/11 terrorist attacks ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. The compound annual growth rate (CAGR) shows the ...

Zack Snyder's Justice League is quite a bit different from the 2017 theatrical version, to put it mildly. This version of the DCEU sequel shows us a lot more of Steppenwolf and his fellow New Gods, ...