Introduction
Micro Robots
A team of scientists from Northwestern University in the United States has developed a robot smaller than the eye of a needle.
It looks like a crab, but is much smaller.
It is only 0.5mm in size, which looks like this when placed on a coin.
This is how it looks next to the eye of a needle.
Its movement is similar to that of a frog.
The principle of its movement relies on elasticity, provided by a type of memory alloy that has a memory function when heated.
Researchers use lasers to heat it and create elastic deformation; removing the laser restores it to its original shape.
Due to its small size, its temperature changes rapidly, and its movements are quick.
It can change 10 times per second and move 0.25mm.
The direction of the laser sweep is the direction of movement.
It can be used for minimally invasive surgeries to eliminate blood clots, etc.
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Source | Internet
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Editor: Liu Yongqing
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