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Fighting book bans with a free electronic library card, an obsidian hand-axe workshop, elephants against climate change and more

A Robot That Melts and Reforms Researchers have devised a robot that can liquefy and then reform—an characteristic inspired by sea cucumbers that rapidly change their stiffness. The shape-shifting invention can move between liquid and solid states by making clever use of materials. It’s composed of a metal with a low-melting point called gallium which researchers then embedded with magnets to control movement. Through the …

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How ancient grains could be the future of food, responsible use of AI, clean energy ideas and more from around the web

How Origami Is Innovating Technology Origami dates back to the 17th century in Japan, but it wasn’t until the mid-20th century that people began to consider the practice an art form due, in large part, to origami master Akira Yoshizawa. Since then, origami has gone on to become a respected art and now a tool to revolutionize science and technology. For example, the patterns and …

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Controlling lightning with lasers, transforming dumps into parks, mapping subterranean passageways and more

The First 3D-Printed Two-Story Home in the US New York design firm Hannah, Germany-based company Peri 3D Construction, and Texas engineering and construction firm Cive have partnered to create the first 3D-printed two-story home in the US—currently being built in Houston. The 4,000-square-foot, three-bedroom property will serve as a case study on how to best streamline 3D-printed construction, test the capabilities of the machine and …