
Japan's Top Inventions - Season 2 Episode 5
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The behind-the-scenes tales of hit products and creations from Japan: this is Japan's Top Inventions. This time, a product used in over 20 countries and regions: stay-tight fasteners, nuts used with bolts in railroads, bridges, towers, and more. When normal nuts experience vibration, they sometimes come loose. But stay-tight fasteners, developed in Japan in 1974, overcame this problem. Learn the dramatic story behind the nuts, including a surprising spot that inspired their creation: a shrine!
- 1. Snap-Off Utility Knives2019-01-17
- 2. Acrylic Aquarium Panels2019-02-21
- 3. Makeup Brushes2019-03-21
- 4. Compact Motorcycles2019-04-17
- 5. Stay-Tight Fasteners2019-05-09
- 6. Video Game Character2019-05-30
- 7. Pedal Assist Electric Bicycles2019-06-19
- 8. Cooling Gel Sheets2019-07-10
- 9. Fiber Tip Pens2019-08-07
- 10. Shock Resistant Wristwatches2019-08-21
- 11. Cup Ramen2019-09-11
- 12. Probiotic Drinks2019-10-09
- 13. Special Effects Monster Movie2019-10-23
- 14. Umami Seasoning2019-11-13
- 15. Blue LEDs2019-11-27
- 16. Spinning Top Toys2019-12-19