EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Hacker News·Aug 20·5 min read
Show HN: We chased a weather balloon across Montana and never found it
TL;DR
A team attempted to track a weather balloon across Montana, utilizing algae as a biosensor for altitude. Despite their efforts, they were unable to locate the balloon.
✦ Why It Matters
Consider using biosensors in your own projects to enhance data collection and monitoring capabilities.
Key Takeaways
- Use custom 3D-printed enclosures to optimize payload design.
- Implement SSDV for efficient image transmission in balloon projects.
- Test different materials for insulation performance in high-altitude conditions.
- Monitor battery performance closely to ensure payload functionality during flight.
How It Works
The UpLink payload utilized SSDV to transmit images over a radio link, allowing for packetized data transfer that could reconstruct images even with lost packets. The custom enclosure was designed in Fusion360 to fit the payload precisely, enhancing efficiency and reducing weight.