5 Degrees Of Freedom (5DF) Chair
The 5DF was used on Earth by the Gemini, Apollo, and Skylab astronauts to practice moving in a frictionless environment.

This trainer allows astronauts to move in five different directions:

  • Forward and backward
  • Roll
  • Yaw
  • Side-to-Side
  • Pitch

  • The 5DF runs on air bearings to simulate the frictionless environment of space. It also demonstrates Sir Isaac Newton’s Third Law of Motion: For every action there is an equal and opposite reaction.


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