1. Chute-ing Among the Stars

2. What is a parachute? How does a parachute operate? Where have you seen a parachute deployed?

3. Definition and Properties of Fluids Gases and Liquids Properties – Density – Viscosity – Compressibility Is air compressible? Is water compressible? http://image61.webshots.com/ http://www.sindhtoday.net/ Density effects: oil floats on water (Gulf of Mexico spill, 5/3/10) Viscous effects: eddy currents show reversing flow direction http://image61.webshots.com/

4. Resistance to Fluid: Drag Sometimes the goal is to decrease resistance Other times we try to increase resistance http://cdn-www.airliners.net/ http://www.biocrawler.com/ http://msnbcmedia.msn.com http://i.ytimg.com/vi/XS3sbYJHkSw/0.jpg

5. Terminal Velocity Point where no additional acceleration occurs: – Balanced gravitational weight and drag forces – This does NOT mean you stop moving! http://www.chk.ac.th/ http://www.worldrecordsacademy.org http://www.hickoksports.com

6. Connection with Engineering What needs to be considered in parachute design? – Mass/Weight of transported object – Target velocity (dynamics) – Construction Materials (durability)