靜電

 
http://www.youtube.com/watch?v=WxxmeI1gW0k

http://www.youtube.com/watch?v=7b-w0oWttN0

 

http://www.youtube.com/watch?v=OVORqP6VTKk

http://www.youtube.com/watch?v=4Jf_zA5VuGs

 

http://www.youtube.com/watch?v=cnrbwPSyHMM