Controlling your fish remotely is one thing, but utilizing fish sense to dictate the actions of an uncrewed submersible is an entirely different animal. Malcolm MacIver and colleagues at Northwestern University have created an "artificial electric-field sensing system that could ultimately give robotic subs the same additional sensory capabilities" as found in weakly electric fish. These particular sea-dwellers have an uncanny ability to sense electric fields, and can also generate their own to "help navigate, identify objects, and even communicate with other fish." The newfangled "electro-location" system could allow underwater bots big and small to more accurately maneuver and collect data, particularly in situations where precise movements and recognition of surroundings is important. Even the creators admit that it'll be quite some time before man made sensors can come close to mimicking those found in nature, but judging by the videos seen in the read link, they're certainly riding the right wave.

[Via NewScientistTech]

Taking geo-location services to a level beyond what vanilla GPS can provide has been looked at a time or two before, and apparently, the Joint Forces Command is hoping to implement a similar system on the battlefield. In a partnership with L-3 Communications, the JFC hopes to "develop a hybrid tracking system using various navigation sensors and radio waves that could be used when GPS isn't available, such as inside buildings or underground in tunnels or caves." The objectives are twofold, as it hopes to assist "field commanders keep track of individual troops as they carry out missions," and moreover, to give soldiers the ability to accurately and consistently track their own in order to keep "friendly fire deaths" from occurring. If all goes as planned, several prototypes will be loosed on the Marine Corps by May of next year, and if this here technology adds a dash of omnipresence to the men and women in uniform, it could be deployed en masse shortly thereafter.

[Via DefenseTech]

Although Matsushita and Activelink have rolled out a rehabilitating robotic suit aimed at giving handicapped individuals their ability to maneuver their own body parts once again, it appears that Claudia Mitchell has regained her sense of movement using a slightly different apparatus. Touted as wearing the "world's first" bionic arm controlled by thought alone, she now has the ability to carry out simple, albeit quite critical tasks again such as cutting up food. Doctors have re-routed the nerve endings in her arm to "a patch of skin on her chest," essentially enabling her prosthetic arm to respond to her thoughts concerning movement. Furthermore, a recent study of her wrist, hand, and elbow functions revealed that she could perform tasks "four times quicker than with a conventional prosthesis," and the team hopes to install "touch sensors" on the artificial hand in order to allow for tactile feedback in the future. Claudia seems to be understandably thrilled with the results thus far, as it even allows her to accomplish tasks such as putting on makeup and feeding herself -- but we're slightly disappointed that she apparently hasn't given a round of Wii Sports a go to build up those oh-so-crucial hand-eye coordination skills, but we're sure that challenge is just around the bend.

[Via Digg]