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

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Light-Powered Soft Robot Jumps 188 Times Without Motor, Carries 1,700× Its Own Weight

In a breakthrough that sounds like science fiction, scientists have created a tiny soft robot that jumps 188 times continuously — without using a motor, battery, wires, or computer chip.

Instead of electronics, this robot runs purely on light and smart material design. It senses, moves, and resets itself using only physics. This discovery opens the door to a new era of machines powered by mechanical intelligence rather than electronic control systems.

The research was co-authored by Wenzhong Yan, an assistant professor in the Department of Mechanical and Aerospace Engineering at University of California, Davis. The findings were published in the scientific journal Advanced Materials.


🦗 An Insect-Scale Robot That Moves Using Only Light

The robot is about the size of an insect. When exposed to light, it bends, stores energy, snaps into the air, lands, and repeats the cycle — all automatically.

There are:

  • ❌ No motors

  • ❌ No batteries

  • ❌ No processors

  • ❌ No electronic sensors

Instead, the robot is built mainly from liquid crystal elastomers (LCEs) — a rubber-like smart material that changes shape when exposed to heat or light.

When light shines on the material:

  1. The LCE contracts.

  2. The curved beam structure bends.

  3. Energy builds up inside the material.

  4. The structure suddenly snaps.

  5. The robot launches into the air.

As it jumps, it briefly blocks the light source with its own shadow. Without light, the material cools and returns to its original shape. Once light hits it again, the cycle restarts.

This self-shadowing effect acts like a built-in control system — meaning the robot automatically resets without needing electronics.

🚀 188 Continuous Jumps — A Surprising Result

The research team originally expected the robot to jump only a few times under continuous light. But something unexpected happened.

It kept jumping.

The robot completed 188 uninterrupted leaps in testing. According to Yan, this was not planned.

The performance revealed how durable and efficient the material design was. The structure didn’t break down, overheat, or lose functionality.

This level of endurance is impressive for such a small and simple mechanical system.

💪 Carrying 1,700 Times Its Own Weight

To test its limits, researchers added extra weight.

Even under extreme loading conditions, the robot kept performing. It successfully jumped while carrying up to 1,700 times its own body weight — about 300 milligrams.

For comparison, imagine a human carrying the weight of a large truck and still being able to jump repeatedly.

The robot showed no drop in performance, proving that smart geometry and material engineering can produce surprisingly strong and resilient systems.

⚙️ How the Jumping Mechanism Works

The robot’s movement is based on a simple but powerful physics concept called snap-through instability.

Here’s what that means in simple language:

  • The material bends and stores elastic energy.

  • When the bending reaches a critical limit, it suddenly flips or snaps.

  • That snap releases energy quickly — producing motion.

Think of pressing down on a flexible plastic lid. It bends slowly, but at a certain point, it suddenly flips. That rapid release of stored energy creates force.

In this robot, light acts as the trigger that loads the energy. The structure itself decides when to snap.

No programming required.

🧠 What Is Mechanical Intelligence?

This robot demonstrates an idea called mechanical intelligence.

Traditional robots depend on:

  • Sensors

  • Microprocessors

  • Software

  • Electric motors

But in mechanical intelligence, the material and structure themselves perform the sensing and control.

Instead of programming movement, engineers design geometry and material composition so that behavior happens naturally.

Yan’s earlier research during his Ph.D. also focused on folding robots that behaved autonomously — without any computer chips. The goal is to simplify machines while increasing efficiency.

This light-powered jumper is a perfect example of that philosophy.

🔥 Real-World Applications

Although the robot is currently a laboratory prototype, its potential applications are exciting.

1️⃣ Wildfire Monitoring

One idea is to use these jumping robots as mobile environmental sensors.

They could:

  • Carry tiny smoke detectors

  • Jump continuously across terrain

  • Send alerts when detecting heat or flames

Instead of a single monitoring station, you could deploy hundreds of small robots forming a dynamic distributed network across forests.

This could improve early wildfire detection.

2️⃣ Disaster Response

Because the robot:

  • Has no electronics

  • Doesn’t rely on batteries

  • Is lightweight and durable

It could operate in dangerous environments such as:

  • Collapsed buildings

  • Radioactive zones

  • Underground tunnels

In places where traditional robots might fail, simple light-powered machines could continue functioning.

3️⃣ Adaptive Wearable Technology

Yan is also exploring smart fabrics that change stiffness when needed.

Imagine:

  • A T-shirt that becomes rigid during impact.

  • Protective clothing that stiffens during danger.

  • Flexible material that supports muscles only when necessary.

This concept could transform sportswear, medical braces, and protective gear.

🌍 Why This Discovery Matters

This research challenges how we think about robotics.

For decades, progress in robotics has focused on:

  • Faster processors

  • Better AI software

  • More advanced sensors

But this study suggests a different direction: simplify the system and make materials smarter instead.

Benefits include:

  • Lower cost

  • Higher durability

  • Reduced energy consumption

  • Operation in extreme conditions

By embedding intelligence into material physics, engineers reduce the need for complex electronics.

🔬 The Bigger Picture

The robot’s success shows that:

  • Light can act as a clean energy source for motion.

  • Smart materials can replace circuits.

  • Simple geometry can produce complex behavior.

It also opens possibilities for:

  • Micro-robot swarms

  • Space exploration tools

  • Environmental monitoring systems

  • Medical micro-devices

Because these systems do not rely on traditional electronics, they could operate in conditions where electronic failure is common.

✨ A New Chapter in Robotics

The light-powered jumping robot represents a major shift in design philosophy.

Instead of asking:

“What electronics do we need to control this robot?”

Researchers are now asking:

“How can we design the material so that control happens naturally?”

With 188 consecutive jumps and the ability to carry 1,700 times its own weight, this tiny machine proves that intelligence doesn’t always require a microchip.

Sometimes, it’s built directly into the material itself.

As mechanical intelligence continues to develop, we may soon see robots that:

  • Move without batteries

  • Think without processors

  • Adapt without programming

And all powered by something as simple as light.

Reference: W. Yan, P. Shi, Z. Liu, et al. “ Self-Sustained, Continuous Jumping of a Light-Driven Electronics-Free Insect-Scale Soft Robot.” Adv. Mater. 37, no. 51 (2025): e19669. https://doi.org/10.1002/adma.202519669

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