six simple machines

• screw
• polly
• lever
• wheel and axel
• wedge
• incline plane

We can reduce this simplae machines to four because some of them are not thatmusch importatnt in construction or any other building. Two of this machines are not important for regular use.

Six flags trip

Sixflags is one of the most educational theme parks. Its educational because if you look into how the roller coastrs work, you are learning about phjysics and gravity. also how each roller coaester has their own mechanism which makes it better than others.

Physics of roller coasters
http://science.discovery.com/video-topics/engineering-construction/machines-rollercoaster.htm#/machines-rollercoaster.htm

Kingda ka- Mechanics
http://www.youtube.com/watch?v=M86ZEoM8CwM&edufilter=UCHz6YlvsfA_cFLx1sbx_6VA