51D-06-015 (12-19 April 1985) --- Astronaut Jeffrey A. Hoffman and Rhea Seddon mission specialists, demonstrate the effect of weightlessness on a slinky toy in the mid-deck of the Space Shuttle Discovery.

ASTRONAUTS CHILD DEVICE DISCOVERY ORBITER EFFECTS MIDDECK ONBOARD ACTIVITIES SPACE SHUTTLE MISSION 51-D SPACEBORNE EXPERIMENTS WEIGHTLESSNESS

Astronauts Hoffman and Seddon demonstrate effect of weightlessness on slinky