Friday, September 13, 2013
Extra Credit!
Read this article, then email me a short paragraph explaining what problem evolving gears might have solved. Due Monday, September 16. Open to all classes for 10 pts extra hw credit.
Wednesday, September 4, 2013
Extra Credit!!!
The first student to accurately identify this nebula receives 5 pts extra credit on his or her last exam. Open to all students.
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