Some of us still remember when fax machines were the height of technology, so it’s safe to say this one blew our minds a little bit. Scientists have developed a pill-sized bioprinter, designed to be swallowed and then to use “living” ink to repair damage inside the body. When it’s done its job, you simply yank it back out using a magnet. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

Developed at the Laboratory for Advanced Fabrication Technologies at the École Polytechnique Fédérale de Lausanne (EPFL), the miniature printer takes lessons from other types of so-called “untethered” technologies that are in development. Think microscopic robots that can be set to work clearing out blood vessels, or “ pill cams ” that image the intes

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