For those north of the equator, the solstice marks the shortest day and longest night of the year. During the winter solstice, the sun will be at its lowest noontime point in the sky for 2024 because ...

Abstract: This paper investigates the shortest path planning of unmanned surface vehicles (USV) in complicated marine environments. A novel path planning method called “sunlight algorithm” is first ...

Abstract: In this work, we propose the Dubins Path Smoothing (DPS) algorithm, a novel and efficient method for smoothing polylines in motion planning tasks. DPS applies to motion planning of vehicles ...

The shortest day of the year is almost here, Californians, as the last day of fall approaches. The winter solstice is on Sunday, Dec. 21, in the Northern Hemisphere and it occurs at 7:03 a.m. PT, ...

Besides colder temperatures and falling snow, the other signs of obvious signs of winter approaching are longer nights and shorter days as the winter solstice nears. Here's when and what to know about ...