Aquatic & Hydraulic Ingenuity - Lifebuoy

Leonardo's note referencing the drawing below reads, "how to save your life in the event of storm and shipwreck".

The invention is easily recognisable as a circular lifebuoy used to keep people afloat.

The original may have been made with cork, the light bark of the cork tree, which grew widely around the Mediterranean.

Racial Diversity
  1. Board #1- Public Enemy #1
  2. Board #3 - Going Home
  3. Challenge Stop #1- The Suitcase Challenge
  4. Board #4- Zoot Suit Riots
  5. Board #5- The Sleepy Lagoon Murder
  6. Challenge #4 - The Forensics Challenge
  7. Final Information on the Sleepy Lagoon Murder
  8. Board #6- Black Wall Street near Tulsa, Oklahoma
  9. Begin Here
  10. Challenge Stop #2- Origami Peace Cranes
  11. Challenge Stop #3 - Haiku
  12. Board #7 - In the End
  13. Board #2- German and Italian Internees
  14. Challenge #5 - Do You Have Racist Tendencies?
  15. Challenge #6- Skin Tone Sorting