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A Cell-Sized Elephant
Popular Mechanics US
|January / February 2026
EVER SINCE THE POPULARITY OF 3D printing skyrocketed in the mid-aughts, people have been manufacturing everything from chocolate to rocket fuel—and that list now includes a microscopic elephant inside of a living cell. Technology has really leveled up since 2005.
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As new biological opportunities for 3D printing keep emerging, a team of researchers has found a way to pull the process off within a cell’s cytoplasm. They were successfully able to print not only an elephant but also several other impossibly small structures using a liquid polymer and a hyperfocused petawatt laser.
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