Metal is a commonly used material on boats, cars, and other similar structures because of its strength, but it brings with it downsides, one of the biggest being its weight. In the future this might not be a problem, in that work is being done now to retain (or even surpass) a metal’s strength while at the same time making the material considerably lighter. One researcher in particular, Nikhil Gupta of NYU Polytechnic University, has been working on something he calls “syntactic foam”, which are various composite materials that are super strong — and in one case, boasting a low enough density to float on water.
via Slash Gear
May 16, 2015
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