Deployable structure
Encyclopedia
A deployable structure is a structure that can change shape so as to significantly change its size.

Examples of deployable structures are umbrella
Umbrella
An umbrella or parasol is a canopy designed to protect against rain or sunlight. The term parasol usually refers to an item designed to protect from the sun; umbrella refers to a device more suited to protect from rain...

s, bistable structure
Bistable structure
In mechanical engineering, a bistable structure is one that has two stable mechanical shapes, particularly where they are stabilized by different curvature axes.A common example of a bistable structure is a snap bracelet....

s, some tensegrity
Tensegrity
Tensegrity, tensional integrity or floating compression, is a structural principle based on the use of isolated components in compression inside a net of continuous tension, in such a way that the compressed members do not touch each other and the prestressed tensioned members delineate the...

 structures, bistable structure
Bistable structure
In mechanical engineering, a bistable structure is one that has two stable mechanical shapes, particularly where they are stabilized by different curvature axes.A common example of a bistable structure is a snap bracelet....

s, some Origami
Origami
is the traditional Japanese art of paper folding, which started in the 17th century AD at the latest and was popularized outside Japan in the mid-1900s. It has since then evolved into a modern art form...

 shapes and scissor-like structures. Deployable structures are also used on spacecraft for deploying solar panels and solar sail
Solar sail
Solar sails are a form of spacecraft propulsion using the radiation pressure of light from a star or laser to push enormous ultra-thin mirrors to high speeds....

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