Abstract: This article studies the path-following controller for low-speed fixed-wing unmanned aerial vehicles (UAVs) with environmental wind and input limitations. Anovel disturbance-compensated fast ...

Two independent research teams have achieved a longstanding goal in physics: building a working nuclear clock. The devices, developed by Beichen Huang and colleagues at Tsinghua University and by Luca ...

A University of Birmingham scientist has built a "mini-universe" that takes a step toward answering one of science's biggest questions: "What is time?" Publishing his findings in Physical Review ...

Amazon said its global data-center operations withdrew about 2.5 billion gallons of water in 2025, as data center companies around the world face growing scrutiny over the environmental impact of ...

Only 84 of 157 announced AI gigawatts will be built by 2030, and AMZN's capex spending already dragged its free cash flow down 95%. Unlike dark fiber that waited underground and eventually powered the ...

In the artificial-intelligence world, pretty much everyone wants to lay hands on chips and other computing hardware made by the market leader, Nvidia. Everyone except Darrick Horton, that is. Horton ...

May consumer prices data largely in line with estimates Super Micro Computer drops after plan to raise $7 billion Trucking shares down after Amazon launches LTL freight offering Indexes: Dow down 1.9% ...

Aaron Ford, Nevada’s attorney general and the Democratic nominee for governor, has talked a lot about his working-class upbringing — he grew up poor in Texas and, as a young single father, relied on ...