I covered the two most common mistakes beginners make with line art—and one trick that instantly levels it up. From pen size ...

Abstract: This brief deals with a control framework for manufacturing flow lines. For this framework, a continuous approximation model of the manufacturing system is required, which is computationally ...

The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number theory to explain quantum fractals.

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 ...

Find out how GDP can help measure the health of a country’s economy Michael Boyle is an experienced financial professional with more than 10 years working with financial planning, derivatives, ...

Dan Graziano is a senior NFL national reporter for ESPN, covering the entire league and breaking news. Dan also contributes to Get Up, NFL Live, SportsCenter, ESPN Radio, Sunday NFL Countdown and ...