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A Fridge in Space
This case analyzes the principles of thermodynamics and the operating cycle of an adiabatic demagnetizing refrigerator (ADR), a piece of equipment NASA uses to keep x-ray detectors cold enough to work.  A synthesis of all the basic principles of t...

Lost in Space
The Mars Climate Orbiter was deployed by NASA as part of a mission to study weather and climate on Mars.  It was supposed to enter orbit at an altitude of 140.5–150 km (460,000-500,000 ft) above Mars, but due to an error, the space...

To Boldly Go, or Not
This fictional public forum case study is centered on the 2004 decision by President George W. Bush to set NASA’s primary goal as a return to the Moon, followed by a mission to Mars. The members on the expert panel and audience are fictitious but...

Up All Night
In this clicker case, students are introduced to George, an undergraduate student who has been experiencing some odd symptoms. His roommate convinces him to see a physician who recognizes that George's symptoms are consistent with diabetes mellitus; bu...