This video explains why sunset diving carries increased risk. Light fades faster underwater than expected. Visibility drops and orientation becomes harder. Exit points become less obvious. Calm ...

Gaggione is highlighting adjustable beam optics for its Sirius range of LED optics. The zoom function is to allow switching between narrow and wide light distributions. For Sirius, there are two ...

Canada could send small contingent of troops to Greenland, says source Canada is considering whether to send a small contingent of troops to Greenland to take part in NATO military exercises, a source ...

Far below the waves off western France, divers have mapped a massive stone barrier that has been hidden since long before recorded history. The structure, dated to roughly 5000 BC, appears to be a ...

Abstract: The quality of underwater imaging is significantly degraded by light scattering and absorption due to water body and suspended particles. To address the issues of color distortion and ...

Abstract: Polarization navigation is an emerging autonomous navigation technology suitable for unmanned underwater vehicles (UUVs). Nonetheless, light refraction poses challenges for underwater ...