Shark Shield Wikipediapersonal electromagnetic field shark deterrent device. Shark Shield is a personal electronic device that creates an electromagnetic field to deter shark attacks and is used by surfers, scuba divers, spearfishing, and ocean kayak fishing. The electrical wave form used in the Shark Shield is based on a technology originally invented by the Kwa. Zulu Natal Sharks Board of South Africa in the 1. Hart Device Drivers Downloads' title='Hart Device Drivers Downloads' />Shark. POD protective oceanic device or simply POD. The Shark Shield device was developed by the Australian company Sea. Change Technology Pty Ltd, and commercialized by its trading company Shark Shield Pty Ltd established in October 2. HistoryeditThe original wave form used in the shark repelling technology was devised by three inventors, Graeme Charter, Sherman Ripley, and Norman Starkey, and released in 1. POD Holdings Ltd, a joint venture company partly owned by the Natal Sharks Board and the South African government. In 2. Kwa. Zulu Natal Sharks Board ceased distribution of the Shark. Hart Device Drivers' title='Hart Device Drivers' />A grandmotheroffour has become an internet sensation, thanks to a video of her using a hairdryer to fool speeding drivers into slowing down. Jean Brooks, 64, from. Find all the MVD information you need to reinstate your suspended MT drivers license. POD. All rights to the intellectual property were licensed to a South Australian based company, Sea. Change Technology Pty Ltd, with the inventor Mike Westcombe Down developing various application patents which resulted in a commercial product line under the brand name Shark Shield in April 2. Download Display Driver For Windows 7 Ultimate 32 Bit. In 2. 00. 7, Shark Shield introduced the third generation of products to replace the original FREEDOM4, expanding the range of products offered to include the SCUBA7, which replaced the original DIVE0. FREEDOM7, a versatile option that can be used by a broad range of ocean users, including scuba divers, spearfishers, boaters, and kayakers 4 and the SURF7, designed to be fitted onto a surfboard or stand up paddleboard to offer surfers protection from sharks. In 2. Shark Shield announced the FREEDOM Surf a product specifically designed for surfers. It removed the trailing antenna of the older SURF7 being replaced with a sticker thin decal antenna on the underside of the surfboard, with the removable power generator located in the kicker of the tail pad. Sprint Galaxy S3 Modem on this page. In addition to traditional ocean sports, Shark Shield products are in use with the US and Australian navies, and recently used by production members in the filming of both The Shallows and USS Indianapolis Men of Courage. Long distance swimmer, Diana Nyad, in her record breaking swim crossing from Cuba to Florida without a cage, was completed with help from Shark Shield. FunctionalityeditAll chondrichthyans have highly sensitive electrical receptors called the ampullae of Lorenzini located in their snouts. These tiny gel filled sacs sense electric current from prey at very close distances, typically less than one meter. They use these short range sensors when feeding or searching for food. They do not use electrical receptors to track animate objects over long distances other senses such as audition and olfaction are the primary drivers. Shark Shield devices create an electrical wave that creates an unpleasant sensation impacting the sharks ampullae of Lorenzini. When the shark comes into the range of the wave, it experiences uncontrollable muscular spasms, causing it to flee the area. The field is projected from two electrodes, which create an elliptical field that surrounds the user. Both electrodes must be immersed in the water for the field to be created. Research conducted by the South African National Space Agency in 2. Shark Shield electrical field to be about 4 5 m in diameter. While sharks are attracted to electromagnetic pulses produced by potential prey animals, the electronic field emitted by the Shark Shield does not attract sharks to the device, so would not increase the risk of attracting sharks to the vicinity of the user. A sharks sensory organs are acutely sensitive to low voltage gradients 5 n. Vcm, enabling them to detect very low frequency electronic fields between 1 and 8 Hz at short range, after which the other senses sight, chemoreception, and mechanoreception aid the shark in capturing its prey. The range at which an electronic shark deterrent emits a field that is the equivalent of a prey like stimulus about 11. Vcm is much further than their short range detection facilitates. Should a shark approach the device, the strength of the electric field gets stronger the closer it gets, and soon causes the shark extreme discomfort, forcing it to turn away. Scientific studies modelling this effect show that the output produced at a 3 m distance is far greater than that produced by prey, and drops off significantly beyond a 6 m radius, where it is beyond the short range detection ability of a shark. Tests and researcheditThe original Shark. POD was tested for eight years off Dyer Island with mainly great white sharks, and was the first electronic device that was proven successful in deterring sharks when tested by Ron Taylor and Valerie Taylor in 1. Australia and South Africa with positive results they made a documentary about it called Shark POD. In 2. 00. 3, C F Smit, Department of Statistics, University of Pretoria, South Africa and V Peddemors, Department of Zoology, University of Durban Westville, South Africa Peddemors was employed by the Natal Sharks Board at the time researched Estimating the Probability of a Shark Attack when using an Electric Repellent. In two series of tests of the Shark. POD, data were collected on the time needed to attack the bait, under power off and power on active conditions. Conclusions were separately drawn after completion of the first experiment in which 8 attacks were successful in 9. In general, the probability of an attack in at most 5 minutes was reduced from about 0. In 2. 01. 0, Safe. Work South Australia, the government agency responsible for administering occupational health, safety, and welfare laws in South Australia, commissioned the South Australian Research and Development Institute to conduct a study into the effectiveness of the Shark Shield FREEDOM7 product. The research team conducted field experiments testing white shark response to both a static bait natural prey and a dynamically towed seal decoy at Neptune Islands, South Australia, and Seal Island, South Africa, respectively, documenting their findings in a research report titled Effects of the Shark Shield electric deterrent on the behaviour of white sharks Carcharodon carcharias. A total of 1. 16 trials using a static bait were undertaken at the Neptune Islands, South Australia, and 1. Seal Island, South Africa. The proportion of baits taken during static bait trials was not affected by the deterrent. The deterrent increased the time it took to take a static bait, and the number of interactions per approach. The effect of the Shark Shield. TM was not uniform across all sharks. The number of interactions within 2 m of the deterrent decreased when it was activated. No breaches and only two surface interactions were observed during the dynamic seal decoy tows when the deterrent was activated, compared to 1. Although the fine scale positioning and presenceabsence data collected to assess the potential of the device to attract white sharks was limited to one trip, our results did not suggest that sharks were attracted to the deterrent. The deterrent had an effect on the behaviour of white sharks, but did not deter or repel them in all situations.