World Record Nerf Guns and Engineering Exploration

Introduction

• Exploration of creating the world's smallest Nerf gun, following previous achievements of the world's largest Nerf gun.
• Objective: To break the smallest Nerf gun record three times by shrinking by a factor of ten each step.

Challenges and Engineering Insights

• Problem: Shrinking mechanical components such as springs and hinges to a near-human hair scale, making assembly nearly impossible.
• Solution: Create a tiny, functional Nerf gun from a single part with no springs using compliant mechanisms.

Compliant Mechanisms

• Professor Dr. Howell's Role: Expert in compliant mechanisms, demonstrating benefits such as reduced parts, lower cost, precision, reduced weight, no friction, and built-in springs.
• Prototype Designs: Three designs considered, with the optimal one being a fishbone design modified for longer ribs and offset backbones for maximum energy storage.

World Record Achievements

1. First Record: 3D printed model using SLA printer, capable of firing three feet.
2. Second Record: Micro-scaled down using carbon nanotubes, fired with microscopes and micro manipulators.
3. Third Record: Electron microscope used to visualize scale against a human hair.

DNA Origami Technology

• DNA Origami: Technique to fold DNA into structures like the world's smallest Nerf gun using scaffold strands and staple strands.
• Pallav’s Lab: Achievement of self-assembled DNA Nerf guns, visible with atomic force microscopy.

Larger Impact and Future Implications

• Potential Application: Ideas for targeted treatment in medicine using DNA injection devices.
• Inspirational Quote: Hope lies in dreams, imagination, and the courage to make those dreams reality - Jonas Salk.

CrunchLabs and Educational Innovation

• CrunchLabs Build Box: Educational subscription for children to build toys, fostering creative confidence and understanding of engineering physics.
• Special Offer: Platinum ticket invitation to design at CrunchLabs with Mark Rober's team for a day.

Conclusion

• Celebration of scientific curiosity and progress, inspired by cutting-edge research aimed at future solutions to current challenges.