鯊魚是海中最可怕的獵食動物。而當今的驅鯊科技，已讓海洋成為對潛水者和衝浪者來說，更安全的地方了。
紐澤西州（New Jersey）科學家研發了Sharkbanz手環與腳環。該產品利用地球的磁性，驅趕好奇的鯊魚。
鯊魚頭部的感覺接收器，可讓牠們偵測電磁力。
牠們是所有已知動物中，對電磁力最敏感的。
鯊魚利用此種感知，來判斷其他動物的距離、形狀、心跳。
Sharkbanz並不需要裝電池，其能源來自地球磁場。
一旦鯊魚游進一到二米的範圍之內，該手環的磁力波，就會阻斷鯊魚的感知力。
潛水者下水時，建議戴上手環，如此萬一有鯊魚游過來，便能以磁力驅趕牠。
這項科技已證明對護士鯊、美洲魟有效。
對更具有攻擊性的動物，如已知會攻擊人類的虎鯊、公牛鯊也有效。
但Sharkbanz可能無法防止大白鯊的攻擊。由於大白鯊是伏擊掠食者，牠們從遠距離瞄準目標，並高速攻擊。
然而若有大白鯊在你的周圍，隨意觀察環境的話，這支手環也很可能制止牠們，讓牠們不再探查。
英文原文：
Sharks are widely feared as the ocean’s deadliest predator, but developments in shark repellent technology claim to make the oceans a safer place for divers and surfers alike.
Scientists in New Jersey have developed Sharkbanz, wrist and ankle bands that utilize the Earth’s natural magnetism to deter inquisitive sharks.
Sharks have receptors in their heads that allow them to detect electromagnetic energy.
They have the most sensitive electromagnetic sense of all known animals.
Sharks use this advantage to judge distance, shape, as well as heartbeats in other animals.
Sharkbanz do not require batteries, as they draw power from the magnetic field of the Earth.
As a shark swims within one to two meters away, magnetic waves coming from the band disrupt its electro-receptors.
When submerged in water, it is advised that divers place the band over their wrists, so they can direct the magnetism when sharks swim towards them.
The technology has been proven to repel creatures such as the nurse shark and southern stingray.
As well as the more aggressive animals such as tiger sharks and bull sharks, that are known for their attacks on humans.
In case you’re wondering, Sharkbanz aren’t likely to protect you from great whites, as those sharks tend to be ambush predators, targeting prey from long distances at high speeds.
However, if one happens to be casually investigating your area, it may very well deter them from further inquiry.
原文影片請看此
http://bit.ly/2apbb1g
