Master vector derivatives in polar coordinates with this clear physics tutorial! Learn step-by-step how to compute derivatives, understand radial and angular components, and apply them to mechanics ...

Abstract: Full waveform inversion (FWI) can produce high-resolution subsurface parameter models. However, due to its limitations in data acquisition, the observed data often lacks low-frequency ...

Washington, D.C.-based Compass Coffee has filed for Chapter 11 bankruptcy in the U.S. Bankruptcy Court for the District of Columbia. Compass Coffee was founded in 2014 by two former U.S. Marines, ...

North American Class 8 truck orders surged in December to 42,200 units, marking a three-year high and significantly exceeding the 10-year average. This spike was primarily driven by easing regulatory ...

Trump's falling approval ratings among middle-class Americans signal a critical challenge for his administration as affordability and economic concerns continue to dominate public opinion. Recent ...

Trump’s battleship plan clashes with decades of U.S. naval strategy and technology shifts Experts described it as a "prestige project," a "bomb magnet" and said that "this ship will never sail." Even ...

Saks Global, parent of high-end department store chain Saks Fifth Avenue, is weighing Chapter 11 bankruptcy as a last resort, Bloomberg News reported on Monday, citing people familiar with the matter.

President Trump said the U.S. Navy would build a new ‘Trump-class’ battleship, with construction of the first ship to begin almost immediately. Photo: Alex Brandon/Associated Press President Trump ...

President Donald Trump unveiled a new “Trump class” of Navy battleships Monday, describing them as a superior war fighting vessel to replace an “old and tired and obsolete” US fleet. “They’ll help ...

The centerpiece of the Trump administration’s revamp of the U.S. Navy is the largest surface combatant America will build since World War II. The U.S. Navy will buy two new “battleships” as part of ...

President Donald Trump is naming a new class of ships after himself as part of his so-called Golden Fleet vision for revamping the Navy. In a speech at his Mar-a-Lago resort in Florida on Monday, ...

Saks Global Enterprises, facing limited options ahead of a more than $100 million debt payment due at the end of this month, is considering Chapter 11 bankruptcy as a last resort, according to people ...