Students at Santa Clara University who are hard at work building a solar house have issued a David Letterman-style video invitation to California's governor, Arnold Schwarzenegger, to pay the house a visit. Their Refract House — one of 20 solar houses entered in this October's Solar Decathlon on the Mall in Washington — is a joint effort by Santa Clara students and students at the California College of the Arts.
The decathlon, held every two years, is sponsored by the U.S. Department of Energy. The 2007 competition was won by a team from the Technical University of Darmstadt, in Germany, with the University of Maryland's house taking second place and Santa Clara's coming in third. You can read about the challenges of the competition here.