The 1911 Triangle Shirtwaist Factory Fire—which killed 146 garment workers—shocked the public and galvanized the labor movement. Fire hoses spray the upper floors of the Asch Building—headquarters to ...

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 ...

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 ...

Somer G. Anderson is CPA, doctor of accounting, and an accounting and finance professor who has been working in the accounting and finance industries for more than 20 years. Her expertise covers a ...

Sure, riddles are fun if you’re a fan of clever wordplay. But there’s something so uniquely enjoyable about a good visual puzzle. So today, we’re calling all brainteaser aficionados: How many ...

In 1994, an earthquake of a proof shook up the mathematical world. The mathematician Andrew Wiles had finally settled Fermat’s Last Theorem, a central problem in number theory that had remained open ...

Two years ago, a couple of high school classmates each composed a mathematical marvel, a trigonometric proof of the Pythagorean theorem. Now, they’re unveiling 10 more. For over 2,000 years, such ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. What is a triangle? We all know that a triangle is a three-sided shape — 1, 2, 3 sides. A triangle also ...

Pythagoras Theorem: The Pythagoras Theorem is a fundamental principle in geometry, attributed to the ancient Greek mathematician Pythagoras. This theorem establishes a relationship between the sides ...

In honor of Zendaya’s new film Challengers, which focuses on the intersecting love lives of three tennis players, we are taking a look at the best love triangles in movie history. The 31 films ...

Jessica and Tom have been bickering about finances for weeks. Every discussion ends in a stalemate or a heated argument. Seeking relief, Jessica often turns to her mother for advice and comfort, ...

It’s not a teen drama without some great love triangles, one of the key ingredients of a stellar young adult series. Whether it be unrequited, between-brothers or fantasy-based, a good love triangle ...