A mother queen conch lays half a million eggs over a day or so in a gelatinous strand that, unfurled, would stretch longer than a semitruck trailer.A queen conch shell can grow as big as a football.

Writing today in the journal Science Advances, researchers from several universities and museums in France describe how they used CT scans and other imaging wizardry to show that a person during the Upper Paleolithic age took great care to modify the shell, the oldest such instrument ever found.

That's a great way for both people to end up shot, which is why the military advises the method that Cara Dune adopts when the Mandalorian gets wounded in a firefight in the last episode: Drag the casualty into cover for assessment while providing vast quantities of covering fire.

Stretching across more than 4,000 square miles of South America’s Altiplano (high plain), Salar de Uyuni (literally, the salts of Uyuni, the nearest town) is the world’s largest salt flat, a nearly featureless white landscape left behind by the evaporation of prehistoric lakes.

The company declined to say whether there have been shifts in tipping since mid-September 2017.The paper relies on detailed data about drivers, riders, and the rides themselves, including length, pickup time, and how many quick accelerations, hard brakes, and speeding stretches occurred during the trip.

For the first time the Whakatipu lake floor will be mapped to build a picture of the potential for local tsunami hazards in the future.

“With addition, you do it a year earlier in school because it’s much easier, you can do it in linear time, almost as fast as reading the numbers from right to left,” said Martin Fürer, a mathematician at Pennsylvania State University who in 2007 created what was at the time the fastest multiplication algorithm.

In this planar world, “complex numbers” represent arrows that you can slide around with addition and subtraction or turn and stretch with multiplication and division.Hamilton, the Irish mathematician and namesake of the “Hamiltonian” operator in classical and quantum mechanics, hoped to climb out of the complex plane by adding an imaginary j axis.

The boat rides allow Kopelman to collect data for the Coastal Research and Education Society of Long Island—an organization he co-founded in 1996—while also educating passengers about the incredible cetaceans and pinnipeds swimming (and singing) just miles from shore.“People are surprised to learn there are marine mammals in New York,” Kopelman says, “perhaps because it’s an area that also has some of the densest human populations in the world.”The New York Bight—a coastal region stretching from the northern tip of Long Island to southern New Jersey—is a frolicking ground for 19 species of whales, dolphins and porpoises, as well as four species of seal.