ROS System, Hospital Drug Delivery Robot, Autonomous Localization, Path Planning, Navigation Simulation Cheng, B. and Zhang, B.Y. (2025) Research on Autonomous Localization and Navigation Simulation ...

A new technique breaks Dijkstra's 70-year-old record: it finds routes faster in huge networks, changing graph theory forever.

The original version of this story appeared in Quanta Magazine. If you want to solve a tricky problem, it often helps to get organized. You might, for example, break the problem into pieces and tackle ...

If you want to solve a tricky problem, it often helps to get organized. You might, for example, break the problem into pieces and tackle the easiest pieces first. But this kind of sorting has a cost.

Unmanned surface vehicles (USVs) nowadays have been widely used in ocean observation missions, helping researchers to monitor climate change, collect environmental data, and observe marine ecosystem ...

Across the Northern Hemisphere, people are soaking up the long hours of summer sunlight, with no idea that they’re experiencing some of the shortest days since modern timekeeping began—by a ...

July 22, 2025, is predicted to be one of the shortest days ever recorded. Earth is expected to complete today's rotation 1.34 milliseconds faster than 24 hours. While imperceptible to humans, these ...

Where does the time go? For once, we know for sure — sort of. If tomorrow, July 9, feels even shorter than your average day filled with too much to do, there’s a scientific phenomenon that’s to blame, ...

1 Department of Industrial Engineering and Maintenance, Polytechnic University of Mongo, Mongo, Chad. 2 Department of Technical Sciences, University of N’Djamena, N’Djamena, Chad. 3 Department of ...

This year's shortest day—Earth's fastest single rotation—will likely fall on July 9, July 22, or August 5. Reading time 2 minutes Earth might be about to spin out its fastest day on record. And no one ...