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  R1: Shoot the Monkey
      complete setup







  R2: Greek waiter tray,
      Rotating flames













   R3: Marble launch angle,
      Ballistic Pendulum
      Balls and beans,
      Sound in a vacuum



  R4: Long cart,
      Sound in a vacuum bottles
      Air track carts

  M5: Floppy suction cups,
      Suction cups,
      Magdeburg hemispheres,
      Penny and feather,
      Styrofoam and nickle