In this video, we provide an overview and summary of Chapter 1 from Introduction to Electrodynamics by David J. Griffiths. We cover the basics of electrostatics, vector calculus, and the fundamental ...

Ari Marchesso planned to spend this academic year at Pasadena City College getting a refresher on precalculus skills. The second-year student took trigonometry in 2020 at Blair High School and felt ...

Hey there, Palo Alto! Let's get started with what's happening in and around town. Read on and stay in the loop. ☀️ In today ...

In 2025, Anthropic will grow from $1 billion to $9 billion in ARR (annual recurring revenue). OpenAI, meanwhile, will go from ...

The Indiana QB’s professional aspirations go beyond football. Mendoza is an aspiring investor and is quite active on LinkedIn ...

As 2025 draws to a close, CDT editors are compiling a series of the most notable content (Chinese) from across the Chinese internet over the past year. Topics include this year’s most outstanding ...

The golden-yellow tickets reshaped how New Yorkers accessed the subway and became civic icons in the process.

U.S. President Donald Trump is considering introducing Japan's widely used kei cars (micro cars) to the United States. According to Bloomberg and Axios on the 6th (local time), on the 5th President ...

TL;DR: A wide range of online courses from Harvard University are available to take for free on edX. Do you have big plans to ...

To minimize the monthly noise and the distorting effects from DOGE, it’s helpful to focus on private-sector payrolls for the ...

Although the 10-year yield has had a volatile ride at times in 2025, looking back over the year reminds us that the general ...

In mathematics, ubiquitous objects called groups display nearly magical powers. Though they’re defined by just a few rules, groups help illuminate an astonishing range of mysteries. They can tell you ...