Abstract: In this article, we investigate the optimal control problem for an unknown linear time-invariant system. To solve this problem, a novel composite policy iteration algorithm based on adaptive ...

Prime Day 2026 deals to help you deal with the summer heat.

It’s the last day to shop low Prime Day prices  Prime Day is Amazon’s biggest sale of the year — and this one did not ...

Director Frank Coraci and production designer Perry Andelin Blake recall designing the most iconic prop from any Sandler film ...

Discovery announces the official 2026 Shark Week lineup running July 26–August 1, featuring 20 new premieres, Josh Gates, and ...

Shark Week shows will include groundbreaking science, daring stunts, and up-close encounters with the ocean's most fascinating predators There's something in the water; it's Shark Week 2026. The ...

Abstract: To improve the tracking performance of autonomous underwater vehicles (AUVs), a sliding optimal tracking control method for linear continuous systems is proposed with adaptive dynamic ...

Speaking after the tragic death of a 39-year-old Cairns spearfisherman at Kennedy Shoal, Mr Pike said the apex predator problem had ramped up significantly over the past decade. “Every day you go ...

On Day 77 of our journey at sea, we had one of our wildest encounters yet—a massive tiger shark cruising the shallows near a remote island. In this video, we document the moment up close, share how we ...

An employee at a Naval Warfare Center in Panama City, Florida, was mauled by shark on Monday in a disturbing attack that was captured on cellphone video. The civilian employee, who has not been ...

Americans routinely say they relish the ability to work from home or remotely rather than commute to an office. Yet new research suggests that untethering yourself can come at a cost. New research ...

Add Yahoo as a preferred source to see more of our stories on Google. A shark attack along Florida's Panhandle has left a Navy base employee in critical condition—and the terrifying incident was ...