1. Professor John Goree & Lou Datilio Gravity Weight Falling in Space: Microgravity (Weightlessness)

2. Q. What keeps you from floating out of your chair, when you are seated? A. Gravity

3. Q. Why does everything dropped (here, the apples) fall downward? A. Gravity All things attract one another

4. Pictures taken (at regular intervals) of a ball falling Falling

5. All objects fall at the same speed (without air resistance) Falling

6. Demonstration: quarter and feather

7. Throwing a ball at different speeds Falling

8. Throwing it hard enough might make it go into orbit around the earth Falling

9. Demonstration: Java applet www.physics.uiowa.edu/~stille/ (Fowler’s Physics Applets)

10. Weight

11. Demonstration: weight on a bathroom scale

12. Weight and Weightlessness inside an elevator Weight

13. Weightlessness: inside a falling elevator in a spacecraft, They are alike, because both are falling

14. Video: free fall

15. astronauts inside their spacecraft Weightlessness

16. Space Station months Space shuttle <17 days Sounding rockets10 min KC-135 20 sec Drop towers 5 sec Vomit Comet “Microgravity” = “Weightlessness” Weightlessness

17. Parabolic airplane flights = vomit comet Microgravity

18. Spacecraft: Mir Space Station Mir: Spring, 2000

19. International Space Station “ISS”

20. ISS - Assembly Sequence 1998 - 2006

21. International Space Station

22. Space Shuttle

23. Video - Space Shuttle launch

24. Demonstration cars Video Astronauts in Space Shuttle

25. Demonstration: basketball Video: basketball in space

26. Microgravity projects at the Univ. of Iowa Physics Dept.

27. PKE - Plasmakristall Experiment Germany, Russia, U.S. 1999 - Parabolic flight tests 2000-01 - ISS Dec. 2000 - launch 2001 - the 1 st physical sciences experiment on ISS PKE flight hardware with 1st & 3rd ISS crews

28. PKE accommodation Zvezda (Russian Service Module) ISS - assembly 1R July 25, 2000

29. Inside Zvezda

32. PKE logo

33. Launched: on Russian Progress rocket from Baikonur, Kazakhstan March, 2001 Will be done: end of 2001 hardware will go through destructive re-entry PKE

34. Demonstration: Screen up Water balloon