Boeing Says It's Made the Lightest Metal Material in the World | Motherboard - 1 views
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Its structure is similar to that of a bone, in which the outside is rigid but the inside is mostly hollow
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to save weight
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efficient
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A new material developed by Boeing is made of metal, but it's so light it can balance delicately on top of a dandelion. The product, called microlattice, is 100 times lighter than styrofoam, according to Boeing, and is made with interconnected hollow tubes.