Going bottom-up is no problem for a boat on the underside of a levitated liquid. In a container, liquid can be levitated over a layer of gas by shaking the container up and down because the repeated, ...
A team of scientists believe that silver-plated nanoparticles suspended in water could help make a real-life invisibility cloak. A team led by Ji-Ping Huang of Fudan University in Shanghai, China has ...
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