How it's made and How do they do it?

Are you interested in knowing how is chocolate made? or how do they make space pens?

If the answer is YES! you have two different tv shows in "Discovery Channel" : How it's made and How do they do it?. And you can can watch them via YouTube or even just google.

Now that you know a lot about simple machines, you will be able to understand it better.

Here you have two videos and the links to their websites.

How it's made: http://www.sciencechannel.com/tv-shows/how-its-made/videos/music-video-paper-towels/

How do they do it? : http://www.sciencechannel.com/tv-shows/how-do-they-do-it/videos/how-do-they-do-it-indoor-ski-resort/