- evaluate multiple integrals in cartesian, cylindrical and spherical coordinates, - analyze the properties of vector fields, - evaluate line and surface integrals of vector fields, - calculate the ...

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way that will send much of the United States a devastating dose of winter weather ...

Three members of a family, including a child, were injured by a polar bear in a rare attack in the far north of Siberia, Russian officials said Monday. Local police "received a report of a polar bear ...

In this video, we explore line integrals in polar coordinates, a key concept in mathematical physics. I’ll guide you through how to set up and evaluate line integrals in polar systems, including ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. The short film category of this year’s Nature’s Best ...

ST. LOUIS — You can now say "hello" to polar bears Kallu and Kallik at the Saint Louis Zoo! After a weeks-long quarantine and acclimation period, the twin brothers made their public debut on Tuesday.

IN the second volume of his large treatise on the integral calculus, Mr. Edwards deals with multiple integrals, gamma functions, Dirichlet integrals, definite integrals in general, contour integration ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. It’s a big world out there, especially for polar bear cubs ...

NORFOLK, Va. — Have you ever wondered why some winters are mild while others bring freezing temperatures and snowstorms? One of the key players in these dramatic shifts is something called the polar ...