YouTube description: On the river Rhine in Switzerland, there are reaction ferries: boats with no engine, no paddles, no onboard motive power at all. Here's how they work -- and a question about what... continue reading
posted by Aard Vark (oritteropo) 6 years 6 months 3 weeks ago • 601 views • 2:30search results matching tag: onboard
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UPDATE: We're still working on a species ID with our science partners at the Harvard Museum of Comparative Zoology, but currently we're thinking the purple orb is a pleurobranch, a nudibranch relative.... continue reading
posted by newtboy 7 years 8 months 4 weeks ago • 219 views • 3:12- 1