Alexander Bobenko has spent the past 20 years chewing on mathematical doughnuts. In the 2000s, he tried to prove that compact ...

Abstract: This paper reports on a detailed experimental study of quasioptical dielectric resonators (QDRs) designed in the form of a truncated cone and excited on whispering-gallery modes. One aim of ...

Vase in the shape of a truncated cone with a neck that narrows and then flares, Vase in the shape of a truncated cone with a neck that narrows and then flares, circa 1960 Glazed Ceramic Proof ...

Back in 1971, the late physicist Stephen Hawking made an intriguing prediction: The total surface area of a black hole cannot decrease, only increase or remain stable. So if two black holes combine, ...

Researchers celebrate 10th anniversary of gravitational wave discovery, announce verification of a Hawking theorem. Two black holes spiral together and violently merge in this simulation of an event ...

It's probably the hurricane season's most eagerly awaited piece of information for a brewing storm: the forecast path. Sometimes called the "cone of uncertainty", it's a useful tool for tracking where ...

Have you ever noticed that blank hole on the radar near a radar site when you are trying to look at precipitation? The setup that causes this is one of those weather words that may sound silly, ...

Michigan has the highest percentage of water area among U.S. states, at 41.5%. Alaska has the largest total water area, while Michigan leads in Great Lakes water area. Michigan's large percentage of ...

JACKSONVILLE, Fla. — The National Hurricane Center has upgraded some of its products to better communicate risks this 2025 season, and that includes changes to their "cone of uncertainty." The ...