Polar bears are intensely curious animals. That curiosity often brings them into contact with people and can put both species at risk from one another. As the Arctic climate warms, some polar bears ...

Ice comes in more forms than what you’ll find in a freezer or a glacier. Since 1900, scientists have observed more than 20 phases of ice, many of them shaped under extreme conditions. The growing list ...

Learn how to convert between rectangular and polar equations. A rectangular equation is an equation having the variables x and y which can be graphed in the rectangular cartesian plane. A polar ...

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.

No “sticky ends”? No problem. A new study by NYU chemists finds that DNA tiles can assemble into 3D structures without the sticky cohesion of hydrogen bonding. This finding, published in Nature ...

Form 4547, which allows taxpayers to elect the new Trump accounts, was clearly numbered with purpose. But when it comes to 1040s, W-2s, 1099s, and other familiar forms, the explanation is far less ...

Scientists have reported some rare good news from the Arctic. As the climate changes and the ice melts, in one region at least, polar bears are thriving — finding new ways to survive, and even packing ...

The finding offers a small window of hope for a polar bear population vulnerable to the effects of climate change. A polar bear (Ursus maritimus) walks on pack ice in Svalbard, Norway. The effects ...

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 ...

A century ago, the strange behavior of atoms and elementary particles led physicists to formulate a new theory of nature. That theory, quantum mechanics, found immediate success, proving its worth ...