Here is a lightweight pop-up coffee table that can be easily set up without any tools. Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and the Harvard Graduate School of Design have developed structures that rely on compression force generated through a rotational movement to pop up.
More gadgets like this: here
Such an approach can be used for all kinds of furniture, shelters, and even medical devices. The above video shows the potential for such approach.
[HT]
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