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short video (about 6 minutes) showing underwater robot built under open source (publish and share all code online for others to adapt) in a garage. remote operated vehicle. 1,000 times cheaper than vehicle used to explore Titanic. Underwater vehicles used in oil exploration, construction, etc. set up website with discussion forums to bring in tips from others; slow at first, then hobbyists and professional ocean engineers started showing up; people wanted kits, they used Kickstarter to raise $20,000, raised over $100k in 2 hours, then had to start small manufacturing. now they have ocean explorers all over the globe.