Technology is constantly evolving and inventions come and go. Among the breakthroughs that science has made, one thing remains very fascinating—nanorobots. If you’ve ever seen Generator Rex, then you might have been introduced to nanites, those tiny robots that can have a mind of their own. In Generator Rex, nanites are capable of activating and taking control of their hosts. An ominous eventuality if you think about it. Imagine being enslaved by robots that are barely visible to the eyes.

This possibility might not be far from happening, but people can still rest easy. At least that is what the newly made microscopic robots are saying.

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Scientist in the Max Planck Institute for Intelligent Systems in Germany has finally developed really tiny robots that can swim through a person’s eyeball fluids. They take on the shape of a scallop because its swimming methods allow them to move through viscous liquids that can go thick in one area and then thin in another.

Before you jump to conclusions, however, know that these robots don’t really do anything. Yes, you read that right. They won’t fix any visual impairment you might have or remove cataracts. Sure, they are designed to swim in eyeball liquids, but that is exactly what they do—swim.

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So what exactly did scientists hope to achieve? They want to provide a reference for further development in medical technologies. You have to admit, it’s a noble idea, but it would have been astounding if the tiny robots already have a useful function and purpose. At least, the first few steps have already been taken. Who knows? Tomorrow, there could be nanites that will correct astigmatism or eat away a cataract.

What is great about the microscopic robots is that they don’t run on battery, just external magnetic field. And because they’re so small, you won’t even notice they’re swimming in your eyeballs.

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