A classic math rule now handles infinity. New work strengthens the math behind physics and unbounded systems. % ...

Yosra Barkaoui’s doctoral dissertation in mathematics at the University of Vaasa, Finland, has successfully generalised a fundamental theorem that has been limited to the bounded case. The research ...

Understand Thevenin’s Theorem the easy way with a clear, step-by-step circuit example. Learn how to simplify complex electrical networks into an equivalent circuit, making analysis faster and ...

Sacramento County, California, vote-by-mail envelopes were designed with holes punched into either side of the envelopes’ signature section. The holes’ purpose is to indicate to low-vision voters ...

Dr. JeFreda R. Brown is a financial consultant, Certified Financial Education Instructor, and researcher who has assisted thousands of clients over a more than two-decade career. She is the CEO of ...

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 ...

If you are unaware of the process, we will walk you through the steps of creating an envelope using Microsoft Word. Once created, you can either print the envelope with your printer or send it to a ...

Nearly a quarter-century after the Senate refused to open the infamous “second envelope” in former president Joseph Estrada’s impeachment trial—triggering public outrage and the Edsa II ...

In reading the various newsletters and calendars published by the Smithsonian, I have decided that the Institution is rather like Cairo: you can find just about anything here. I see that one Maynard ...

Emmy Noether showed that fundamental physical laws are just a consequence of simple symmetries. A century later, her insights continue to shape physics. In the fall of 1915, the foundations of physics ...

The days of getting important documents in the mail instead of a PDF may be waning, but there’s still plenty of mileage left in the Manila envelope. The oversized, heavy-duty enclosures can send and ...