Nice to meet old friends and new people. Today we learn what is conservation of energy. They build hand generators to power up the car using energy generated by their hands. The whole process is to change kinetic Energy into electric Energy and change it back to kinetic again. It was a fun class and the learning environment is fantastic. Jeff loves to help and chat his neighbors, Jeffery and Micheal are such good problem solver, and last but not least, Lucas has shown great improvement compare to last semester. I am looking forward to have a great season with these guys.