An inexpensive, porous polymer membrane helps to separate raw crude oil, without heat or selective coating. Heavy hydrocarbons self-assemble inside the pores to create channels that are likely to be ...

In his decades-long career in tech journalism, Dennis has written about nearly every type of hardware and software. He was a founding editor of Ziff Davis’ Computer Select in the 1990s, senior ...

Structural geology is the study of the deformation of the surface and subsurface of the Earth and other planetary bodies. This deformation reflects past changes in local and regional stress and strain ...

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 ...

Elysse Bell is a finance and business writer for Investopedia. She writes about small business, personal finance, technology, and more. Samantha (Sam) Silberstein, CFP®, CSLP®, EA, is an experienced ...