Thanks grubstake and aussie farmer.
The vid os probably not helpfull to anyone but i found it a bit interesting and it gave me something to do while i was up bored with insomnia last night.
Thanks for sharing its interesting, when watching you tube clip hit share and then a menu comes up and hit copy, that copies the link, then start a post on here and touch the YouTube tab above where you are typing then tap pop up box that appears and the link should paste into it and hey presto you can post the video.