Liquid magnet propellers could be a safer way to power boats
A ferrofluid propeller powered by electromagnets Hiroto Kitamori et al A robot boat with a propeller made from liquid magnets could be a safer alternative than solid metal blades, which can damage wildlife. Jun Shintake at the University of Electro-Communications in Chōfu, Japan, and his colleagues created a prototype aquatic craft with a propeller made … Read more