South Africa trials "hi-tech punch on the nose" to repel sharks

[riky]

South Africa trials "hi-tech punch on the nose" to repel sharks

<p><a href="http://news.yahoo.com/south-africa-trials-hi-tech-punch-nose-repel-152411379.html"><img src="http://l1.yimg.com/bt/api/res/1.2/QmGZcjX0.pU4pGhHZvw7iA--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTg2O3E9NzU7dz0xMzA-/http://media.zenfs.com/en_ZA/News/Reuters/2014-11-15T152411Z_1007970001_LYNXNPEAAE08H_RTROPTP_2_OZATP-US-SAFRICA-SHARKS.JPG" width="130" height="86" alt="Beachgoers walk past colour coded shark warning flags, black indicating poor visibilty, on Cape Town's Muizenberg beach" align="left" title="Beachgoers walk past colour coded shark warning flags, black indicating poor visibilty, on Cape Town's Muizenberg beach" border="0" /></a>By Tiisetso Motsoeneng JOHANNESBURG (Reuters) - South Africa has started testing a shark repellent electronic cable in Cape Town, in a hi-tech experiment aimed at protecting swimmers without harming the deadly sea predators. Researchers at KwaZulu-Natal Sharks Board installed a 100-metre-long cable on Friday in a small bay in Cape Town that seeks to exploit the sharks' super-sensitive nose. The cable, fixed to the sea floor, with vertical 'risers' supporting electrodes, which emit a low-frequency, low-power electronic field that has been proven to repel sharks. ...</p><br clear="all"/>

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