Scientists hope it will one day fly disease-fighting robots around the human body.
Not only is the nanometer tiny, it's also the fastest and longest-running to date.
Developed by researchers at the University of Texas at Austin, it's a big step towards creating miniature machines that could move through the body and deliver insulin for diabetics, or target cancer cells.
While these machines haven't been invented as yet, when they are, this will be the device to power them - it's 500 times smaller than a grain of salt, but it can effectively convert electrical energy into mechanical motion and even move through liquids.
The team's research has been published in Nature Communications.
Although the nanomotor is less than 1 micrometer in size, it can rotate for 15 continuous hours at a speed of 18,000 RPMs - that's equivalent to the speed of a motor in a jet airplane. Previous models can only move between 14 and 500 RPMs for up to a few minutes.
If that's not impressive enough, they've even shown it can release drugs at a controlled rate.
Apparently not everything's bigger in Texas.
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