News tagged with shape

UFO cross-section gives snakes a lift

Snakes aren't usually renowned for their ability to fly, but Chrysopelea snakes from southeast Asia regularly launch themselves from trees into the air gliding for 10s of meters before touch down. In a bid to understand how ...

dateJan 29, 2014 in Plants & Animals
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New self-stretching material developed

Although most materials slightly expand when heated, there is a new class of rubber-like material that not only self-stretches upon cooling; it reverts back to its original shape when heated, all without physical manipulation.

dateFeb 13, 2015 in Polymers
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Explainer: What is 4-D printing?

Additive manufacturing – or 3D printing – is 30 years old this year. Today, it's found not just in industry but in households, as the price of 3D printers has fallen below US$1,000. Knowing you can p ...

dateDec 19, 2014 in Engineering
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Shape-shifting alloys hold promise

Imagine untwisting a finger-size spring, then holding the flame from a lighter underneath the unraveled section. Like magic, it twirls itself into a spring again because the metal alloy remembered its original ...

dateAug 27, 2013 in Condensed Matter
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