Day: April 25, 2025

Introduction: Airworthiness Certification—The "Sky Code" for Low-Altitude EconomyIn March 2025, the world’s first cross-sea eVTOL commercial passenger flight between Shenzhen and Zhuhai marked the dawn of large-scale low-altitude operations. Behind…

Introduction: Redefining Spatial CognitionFrom Ukrainian drone swarms evading jamming signals to the 10,909-meter-deep Mariana Trench expeditions, GPS-free navigation technologies are reshaping humanity's ability to navigate in GPS-denied environments. This article…