Tag

Underwater Communication

All articles tagged with #underwater communication

science1 year ago•3 min saved

Uncovering the Underwater Songs of Baleen Whales

Scientists have discovered the unique anatomy behind the haunting songs of baleen whales, revealing that they use a larynx modified with a cushion of fat and muscle to produce sounds underwater. This novel structure allows baleen whales to communicate and find each other in dark oceans, with humpback whales using vocalization for communication and mating. The study also found that human-made shipping noises interfere with the whales' ability to communicate, as their vocalizations fall within the same frequency range and ocean depths.

via Reuters|

#baleen-whales #larynx-anatomy #marine-mammals

technology2 years ago•6 min saved

Revolutionary Device Enables Long-Distance, Low-Power Underwater Communication

Researchers at MIT have developed a system for ultra-low-power underwater networking and communication that can transmit signals across kilometer-scale distances. The technique, which uses about one-millionth the power of existing methods, has potential applications in aquaculture, coastal hurricane prediction, and climate change modeling. The system utilizes underwater backscatter communication, encoding data in sound waves that are reflected back towards a receiver. By leveraging a Van Atta array and cross-polarity switching, the researchers achieved longer communication ranges and developed an analytical model to predict the technology's maximum range. The researchers plan to continue studying and commercializing this technology.

via MIT News|

#aquaculture #climate-change-modeling #low-power-networking

technology2 years ago•4 min saved

"Search for Missing Titanic Sub Comes to Tragic End"

The missing submersible, Titan, used by OceanGate Inc. for deep-sea tours of the Titanic wreckage, communicates using underwater sounds and navigates using a 2D sonar and Doppler velocity log. The submersible is operated using a PlayStation game controller and has a cylinder shape with a carbon fiber body sealed with two titanium caps. The vessel's pressure hull is monitored for health, and the hinged hatch is bolted shut externally, making it impossible for occupants to open the door from inside the craft when the vessel surfaces.

via ABC News|

#navigation #oceangate-inc #pressure-hull