Justin's first electricity experiment: The Joy Buzzer

Justin wants to study electricity, so we bought him a kit from Dangerous Books for Boys.  Here is his first experiment:  the "Joy Buzzer".   I didn't do the best job videoing, but I am glad you can actually hear the buzzing. He is so excited about it.

"The vibrating motor is a tiny motor that has an off-center weight at the end of its rotating shaft.  When the shaft spins, the center of gravity changes because of the rotating imbalanced weight.  This produces the vibrating motion.  These little motors are used in electronics such as cell phones and vibrating video game controllers to generate their vibrating action."