Even the structures themselves are made with more high-strength material.

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The strength of the high-tech material allows airlines to raise cabin air pressure and increase humidity, which should make passengers more comfortable on long flights.

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Optim insulation is a hybrid material that combines the biostability and flexibility of high-performance silicone rubber with the strength, tear resistance and abrasion resistance of polyurethane, to provide increased durability and flexibility.

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And the strength, lightness, high melting point and ability to resist corrosion of titanium make it an ideal material for building aircraft parts, supercars and medical implants but it can cost 50 times as much as steel.

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