An underwater movement sensor attached to a motorized swimming doll’s knee alerts a smartphone app when the doll stops kicking, simulating a swimmer in distress. Credit: Adapted from ACS Nano 2022, ...

Many flexible fitness trackers can’t be submerged in water because the coatings required to completely seal these devices would make them uncomfortable to wear. Now, researchers reporting in ACS Nano ...

Still, Gemmell says that the moon jellyfish's energy-saving trick might be useful when designing ocean-going machines — from floating buoys to autonomous underwater vehicles.

image: An underwater movement sensor attached to a motorized swimming doll’s knee alerts a smartphone app when the doll stops kicking, simulating a swimmer in distress. view more Credit: Adapted ...

In this truly breathtaking video, the beauty of the underwater world unfolds as majestic manta rays gracefully swim alongside a lucky swimmer. The serene, crystal-clear waters provide a ...

Underwater robots called gliders are often used to explore the ocean, collecting important data like water temperature, salt ...

French company Seabike has developed a swimming ... This crank-driven pusher prop looks a bit like an underwater ... Boats and Watersports Swimming Marine Innovations Water Sports Fitness Ocean.

The regulation, which has been in place since 1988, states competitors cannot swim more than 15 metres underwater at the start of each turn. By that point, their head must be above the surface.