found this interesting

[steve1111]

https://www.youtube.com/watch?v=wlLU05hmXyA&feature=youtube_gdata_player

 

[shadow2462]

Nice find, very informative...at least to me its nice something actually explained rather than those dang speed videos.

 

[irish44395]

Thanks I learn something new .
Pete

 

[bentoad]

Thanks, he talks so I could understand and I think I f you get the concept that is most important . bentoad

 

[WhiteKnight]

Thanks, great video, I subscribed to his channel