Understanding the gradient of a stream is essential for many disciplines, including geology, hydrology, environmental management, and even civil engineering. The gradient or slope of a stream refers ...

Abstract: The rock physics model of coalbed methane (CBM) reservoir is significant for the study of CBM content. However, because of the adsorption and dissociation of the CBM reservoir, it is ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Vikki Velasquez is a researcher and writer ...

President Trump announced new tariffs on pharmaceuticals, heavy trucks, and furniture, including a 100% duty on patented drugs, with some exemptions. Thursday's move is one of Trump's new ...

President Trump on Monday said he would impose 100% tariffs on foreign films and "substantial" duties on furniture imports, part of a revived tariff blitz in recent days. "Our movie making business ...

The monthly Sea Ice Index provides a quick look at Arctic-wide changes in sea ice. It is a source for consistently processed ice extent and concentration images and data values since 1979. Monthly ...

On September 17, Antarctic sea ice likely reached its annual maximum extent of 17.81 million square kilometers (6.88 million square miles). The 2025 maximum is the third lowest in the 47-year ...

Todd Archer is an NFL reporter at ESPN and covers the Dallas Cowboys. Archer has covered the NFL since 1997 and Dallas since 2003. He joined ESPN in 2010. ARLINGTON, Texas -- Micah Parsons got one ...

Edited by Michael Hochella Jr., Virginia Polytechnic Institute and State University, Blacksburg, VA; received March 16, 2022; accepted August 29, 2022 by Editorial Board Member Alexandra Navrotsky ...