Robert Full: Engineering and evolution

TL;DR

This presentation explores the extraordinary performance and design principles of animals and how they can inspire technological advancements.

Transcript

Welcome. If I could have the first slide, please? Contrary to calculations made by some engineers, bees can fly, dolphins can swim, and geckos can even climb up the smoothest surfaces. Now, what I want to do, in the short time I have, is to try to allow each of you to experience the thrill of revealing nature's design. I get to do this all the time... Read More

Key Insights

• 🐝 Contrary to calculations made by some engineers, animals like bees, dolphins, and geckos are able to perform extraordinary feats due to nature's designs.
• 🔄 Evolution works on the "just-good-enough" principle, not on a perfecting principle, which means that organisms have severe constraints in their design.
• 🚗 Organisms have a history inherited from evolution, which limits their ability to start from a clean slate and build something completely new.
• 🧠 Animals have complex internal structures that make it difficult to understand how they work, but their movements are often controlled by the structure of their bodies.
• 🦘 Animals like kangaroos and insects have similar patterns of movement, which can be modeled by a spring-mass system.
• 🔧 Human technologies and natural technologies have traditionally had different designs, but advancements are being made to make human technologies more like nature.
• 🤖 Robots inspired by nature's designs, such as the Stanford Sprawl and the RHex from the University of Michigan and McGill, can exhibit self-stabilizing and maneuvering abilities without complex brains or reflexes.
• 🦎 The gecko's ability to climb walls and ceilings inspired the development of robots with adhesive properties, using intermolecular forces to stick to surfaces.

Questions & Answers

Q: How does the principle of just-good-enough vs. perfecting apply to evolution and engineering?

Evolution works on the principle of just-good-enough, while engineering aims for perfection. Organisms have constraints and a history that engineering does not deal with, making a perfect copy of nature's designs impractical.

Q: How do springy legs contribute to the stability and maneuverability of animals and robots?

Springy legs allow animals and robots to navigate obstacles without slowing down, making them highly stable and maneuverable. By using simple, springy legs, robots can be as agile as any other robot ever built.

Q: What inspired the creation of the robots Sprawl and RHex?

The robots Sprawl and RHex were inspired by the springy leg movements of animals. They are designed to be autonomous and can maneuver over obstacles without any difficulty, relying solely on the mechanics of their legs.

Q: How do geckos stick to surfaces, and how has this inspired technological advancements?

Geckos can stick to surfaces using intermolecular forces known as Van der Waals forces. The structure of their feet, with tiny split-ended hairs, allows them to create a strong grip. This inspiration has led to the development of a synthetic, self-cleaning, dry adhesive with various potential applications.

Q: How can studying ants contribute to the creation of small-scale robots?

Studying ants' feet can provide insights into how they can move effectively on small scales. This knowledge can be applied to improve the locomotion of small-scale robots, making them more efficient and capable of performing programmable tasks.

Answer: The speaker emphasizes the importance of preserving nature's designs and understanding its secrets. Failure to do so may result in the loss of valuable knowledge that can be applied to fields such as search and rescue, mine clearance, medicine, and more. Nature's designs offer endless possibilities for technological advancements.

Summary & Key Takeaways

• The challenge is to understand what allows animals to perform so remarkably and how these designs can be implemented in technology.

• Animals can be modeled by a spring-mass system, producing a bouncing movement that can be replicated in robots.

• By embedding properties into the form itself, robots can exhibit self-stabilization and maneuverability similar to animals.