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: simple question
» channel: learn
Search took 0.001 seconds
- 1
Videos (3) | Sift Talk (0) | Blogs (0) | Comments (840) |
An interesting riddle - can you sifters solve it, without resorting to the solution in the video (from 1:25)? iflscience: The following riddle is claimed to have been written by Einstein as a boy. It's... continue reading
posted by Zawash 8 years 7 months 2 weeks ago • 52 views • 5:08YouTube description: Teach children how to find the beautiful hidden colours in ink and use chromatography to solve mysteries. For info sheets and printable badges, click here: http://rigb.org/experimental/series-2/c... continue reading
posted by Aard Vark (oritteropo) 9 years 2 months 3 weeks ago • 276 views • 3:58- 1