Volume of a Cylinder

Challenge: 

Can any of you 8O'ers find a good video on youtube and post it on this blog?  First person to post a good video on this site gets a reward tomorrow!

Steps:

1. Go to www.youtube.com (Right click on the link above - in a new tab - if you want)
2. Search youtube for a really good video which explains how to find the Volume of a Cylinder
3. Watch the video to make sure
4. Click on the "Embed" link below the video
5. Right click and copy the code which appears below
6. Click back on the tab with this blog
7. Go to New Post
8. In the new post, type in an appropriate title, then click on the Edit HTML button (beside the Compose button - top right of body of post), and paste the code in
9. Lastly, add labels - "Math, volume, video" (type in the first few letters of each and the labels should pop up below, click on the correct word)

As an extra added bonus, add a few sentences in to the post about why you thought this video helped.