A new metal that's 99.99 percent air is durable enough to be used as a building component in aircraft and rockets.
The so-called microlattice was invented by Boeing and this week, the aerospace engineering firm released a video showing just how light the material is.
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In it, Sophia Yang, research scientist of architected materials at HRL Labs, who worked with Boeing on the project, holds a smalls square in the palm of her hand and then blows on it.
The metal floats to floor lazy as a feather.
Yang says that in addition to being lightweight, the material absorbs energy. A small package of it wrapped around an egg could absorb the impact of a 25-story drop.
The structure of the microlattice can be compared to that of bone. Although the airy metal is lighter than bone, it does have a similar open cellular structure, which is part of what gives it the double characteristics of being durable and lightweight.
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