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 ...

Back in 1971, the late physicist Stephen Hawking made an intriguing prediction: The total surface area of a black hole cannot decrease, only increase or remain stable. So if two black holes combine, ...

Once a century, a very special day comes along. That day is today — 9/16/25. Pi Day (3/14) often comes with sweet treats; Square Root Day (4/4/16 or 5/5/25, for example) has a certain numerical rhyme.

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...

The influence of Ronald Coase's 1960 paper, "The Problem of Social Cost," cannot be overstated. Originally published in the Law School's own Journal of Law and Economics, of which Coase was editor ...

Abstract: A variation of Landau’s eigenvalue theorem describing the phase transition of the eigenvalues of a time-frequency limiting, self adjoint operator is presented. The total number of degrees of ...

Stroke is often attributable to cardiothoracic factors, but the need for ECG gating and limited spatial resolution on conventional computed tomography often limits the detection of pathology relevant ...