Coasters 101: Second Edition Launched

I recently launched the second edition of my book, Coasters 101: An Engineer's Guide to Roller Coaster Design. Changes to the book include interesting new content like:

• Evolution of the roller coaster
• Detailed description on launch systems
• A people powered coaster
• How a 4th dimension coaster works
• the modern vertical loop
• and much more!

I'm also working on getting the book published in more formats in order to make it available to as many people as possible. Here's the list where you can find it:

ebook pdf (through clickbank)................$7.99
Kindle Edition.........................................$9.99 
Nook.....................................................$9.99 (coming December 8th) 
Paperback...........................................$11.99