EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Hacker News·Aug 9·5 min read
Tom Stanton's supersonic trebuchet breaks sound barrier with gravity alone
TL;DR
Tom Stanton has successfully built a gravity-powered trebuchet that launched a 4-gram projectile at 776 miles per hour, surpassing the speed of sound. This achievement marks the first time a trebuchet has crossed this barrier using only gravitational force.
✦ Why It Matters
Consider exploring gravity-based mechanisms in your own engineering projects for innovative solutions.
Key Takeaways
- Explore pulley systems to enhance mechanical efficiency.
- Utilize lightweight materials like carbon fiber in designs.
- Conduct stress tests to ensure structural integrity.
- Iterate designs based on testing feedback for optimal performance.
How It Works
Stanton's trebuchet uses a 3:1 pulley system to amplify the speed of the arm. The large diameter at the start provides initial force, while the smaller diameter at the end increases rotational speed, allowing the projectile to achieve supersonic speeds.