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Scientists Discover Way to Send Information into Black Holes Without Using Energy

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This Plant-Inspired Robot Can Travel Inside Pipes and Collapsed Buildings to Save Lives

In many dangerous situations, reaching certain places is very difficult. For example, after an earthquake, buildings may collapse and create small gaps filled with broken concrete and twisted metal. Similarly, in industries, there are narrow pipes and tiny cracks that need inspection. These environments are risky and hard to access, but they are very important for rescue operations, repairs, and safety checks.

Traditional vehicles like cars and motorcycles work well on roads, but they are not suitable for such harsh conditions. Even many robots struggle in these situations. Because of this, scientists are working on new types of vehicles that can move easily in tight, rough, and unstable spaces.

A group of researchers—Bai, Xu, and Qin—have developed a unique solution inspired by nature. They studied a plant called Setaria viridis and discovered a special way it moves when placed on a vibrating surface. Using this idea, they created a new type of vehicle called a vibration-driven vehicle (VDV). This invention could change how we perform rescue missions, inspections, and even medical treatments in the future.

Why Traditional Vehicles Are Not Enough

Traditional vehicles are designed for smooth and stable surfaces like roads. They use wheels or tracks to move forward. But in real-life emergencies, the environment is very different.

In collapsed buildings, there are many obstacles like broken walls, steel rods, and debris. These objects block the path of vehicles. Also, the structure is often unstable. If a heavy vehicle moves through it, the vibrations can cause further collapse, making rescue work even more dangerous.

In industrial settings, workers often need to inspect the inside of pipes or small cracks in machines. These spaces are too narrow for normal vehicles. Even small robots with wheels may not fit or may get stuck.

Scientists have tried to solve this problem by creating special robots, such as snake-like robots, wall-climbing robots, and tiny crawling machines. However, these robots are often complex. They have many parts, making them difficult to build, control, and maintain. Also, it is very hard to make them extremely small for use in micro-scale applications.

Nature as a Source of Inspiration

Nature has always inspired scientists to create new technologies. Many useful inventions come from studying plants and animals.

For example:

  • Lotus leaves inspired self-cleaning surfaces

  • Gecko feet inspired strong adhesives

  • Water striders inspired robots that can walk on water

In this case, researchers focused on a plant called Setaria viridis. They noticed something interesting: when its spike (the top part of the plant) is placed on a vibrating surface, it starts moving in one direction.

This movement happens without any muscles, wheels, or engines. The plant’s structure allows it to use vibrations from the surface and turn them into forward motion. This simple but clever mechanism gave scientists a new idea for designing a vehicle.

How the Vibration-Driven Vehicle Works

Using the plant as inspiration, the researchers created a small vehicle made from a soft material called polydimethylsiloxane (PDMS). This material is flexible and lightweight.

The vehicle looks like a small tube with tiny slanted pillars around it. These pillars are the key to its movement.

When the vehicle is placed on a vibrating surface, the vibrations interact with the slanted pillars. Because of their angle, the pillars create uneven friction with the surface. This difference in friction pushes the vehicle forward in one direction.

In simple terms, the vehicle uses vibrations from the environment as its energy source. It does not need wheels, motors, or batteries to move. This makes it very simple and efficient.

Main Advantages of This Vehicle

1. Works in Difficult Environments

The VDV can move through rough and uneven surfaces. It can travel over debris, inside pipes, and through narrow spaces where traditional vehicles cannot go.

2. Can Climb Surfaces

One of the most amazing features of this vehicle is its ability to climb. It can move on slanted surfaces and even climb vertically inside smooth pipes made of glass or plastic.

3. Simple Design

The vehicle has a very simple structure. It does not have complex parts like engines or multiple joints. This makes it easier to build and less likely to fail.

4. Uses External Energy

The VDV uses vibrations from its surroundings instead of carrying its own power source. This makes it lightweight and energy-efficient.

5. Easy to Control

The direction of the vehicle can be controlled by adjusting the vibration or designing a specific path. This makes it practical for real-world use.

Where Can This Vehicle Be Used?

Search and Rescue

In disasters like earthquakes, the VDV can enter collapsed buildings and search for trapped people. Its small size and gentle movement reduce the risk of causing further damage.

Industrial Inspection

Factories often need to inspect pipes and machines. The VDV can travel through narrow spaces and detect problems like cracks or leaks.

Military and Surveillance

The vehicle can be used to explore dangerous areas without putting human lives at risk. Its quiet and simple movement makes it suitable for surveillance.

Space Applications

The climbing ability of the VDV could help in inspecting spacecraft or exploring difficult terrains in space missions.

Future Possibilities: Very Small Versions

One of the most exciting features of this technology is that it can be made much smaller. Scientists believe that the VDV can be reduced to micro or even nano size.

At such small scales, the applications become even more powerful.

Medical Use

Tiny versions of the vehicle could travel inside the human body. They could deliver medicine directly to a specific area, making treatments more effective and reducing side effects.

Micro Machines (MEMS)

In modern technology, very small machines are used in sensors and electronic devices. The VDV could become an important part of these systems.

Advanced Healthcare

In the future, these tiny vehicles might help remove blood clots or perform small medical tasks inside the body.

Conclusion

The vibration-driven vehicle inspired by Setaria viridis shows how simple ideas from nature can solve complex problems. By studying how a plant moves on a vibrating surface, scientists have created a new type of vehicle that does not need wheels or engines.

This vehicle can move in places where traditional machines cannot go. It is simple, efficient, and highly adaptable. From rescue missions to industrial inspections and even medical applications, its potential is huge.

As technology continues to improve, this small invention could have a big impact on our lives. It is a perfect example of how observing nature can lead to innovative solutions that make the world safer and more advanced.

Reference: Bai, S., Xu, Q. & Qin, Y. Vibration driven vehicle inspired from grass spike. Sci Rep 3, 1851 (2013). https://doi.org/10.1038/srep01851

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