The Rocket Company: Chapter 5 + Free ebook today

I have been offering a serialization of the updated version of the book The Rocket Company by Patrick J. G. Stiennon and David M. Hoerr, with illustrations by Doug Birkholz.  This week you can obtain the following chapters of the book:

Download these within the next week. Only four chapters will be available at any one time.

** The electronic version of the updated book is available today for free at  The Rocket Company eBook by Patrick Stiennon, David Hoerr, Peter Diamandis, Doug Birkhol: Kindle Store/Amazon.com.