Abstract: At the Physikalisch-Technische Bundesanstalt (PTB), the caesium atomic fountain clock CSF1 was developed. One key element of it is its microwave cavity, which was designed to have a low ...

The College Football Playoff field is down to its final four. No. 1 Indiana is the favorite to be crowned national champion, but must first get past No. 5 Oregon Ducks in the Chik-Fil-A Peach Bowl. On ...

Who is favored in the College Football Playoff first-round game odds? Check out the point spread, moneyline and over/under (point total) for all four opening-round games on Dec. 19 and Dec. 20, ...

Lisa Whitmore is a writer and editor with over 20 years of experience. She's held roles at publications such as Marie Claire, Glamour, CosmoGIRL, and more. William Truswell, MD, FACS, operates his own ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Drazen Zigic / Getty Images A trade line is created on a borrower’s credit report to track ...

Elizabeth Blessing is a financial writer and editor specializing in growth investing, high-yield stocks, small caps, and gold investing. Charlene Rhinehart is a CPA , CFE, chair of an Illinois CPA ...

A business line of credit can be a convenient financial tool for your small business as it provides access to a revolving credit line whenever you need it. Whether you run into unexpected expenses, ...

It is commonly believed that geometry began as a practical subject, and came into being as a result of everyday concerns. The earliest practitioners of geometry developed a set of rules to calculate ...

It’s no secret that many of us are not too fond of mathematics and geometry, and that it is often too complex. But even so, it can be pretty mind-blowing to look back in history and discover the ...

I will never forget this one day when Kevin was a preschooler. We had an IEP meeting, and one of his proposed math IEP goals was to be able to visualize and identify what 2 of something looks like or ...

What began with a focus on weather forecasting has evolved toward addressing errors in scientific modeling. In the collaborative environment of the Penn State Institute for Computational and Data ...

As North America's only dedicated Faculty of Math, we are nationally and internationally recognized as one of the top schools for Mathematics and Computer Science. With nearly $30 million in research ...