Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. Some active ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Amy is an ACA and the CEO and founder of OnPoint ...

Abstract: The technology of logging-while-drilling (LWD) resistivity measurement, which derives formation resistivity from multiple transmitter–receiver antenna configurations, has been widely applied ...

Plastics are woven into every aspect of our lives, but what was once the poster child for convenience is fast becoming a pariah product. The era of single-use plastic must end; banning it is the only ...

Every animal and plant needs food to live, and they are all part of a food chain. A food chain shows how animals obtain their food. A food chain also shows the flow of energy, which starts off at the ...