In the last 11 years, a lot has changed in this field. That's to be expected in a technology that is driven by Moore's Law, where complexity doubles every 18 months or so. So we have a factor of 7 or so, but actually the rate of change is increasing.Where we are today is machines built with multiple cores on one chip, each core being a complete computer. The same communication schemes discussed in this book are used, with the same trade-off's, shared memory or communication channel....

Pronounced RISK-Five, RISC-V is the latest implementation of the MIPS architecture, in an open source configuration. The project kicked off in 2010 at the University of California, Berkeley.It had been announced in 2018. Multiple companies now offer RISC-V chips, and the architecture is compatible with several FPGA's. The RISC-V architecture is making inroads on the popular ARM embedded architecture.There have been numerous space missions using the MIPS architecture. One of...

I am assuming a basic knowledge of computer architecture, but most of what you need to know is also included. The details of computer math are presented in an appendix. I have collected together a representative list of reference books and interesting titles in the bibliography. In a quickly evolving field such as embedded computers, new and relevant material is emerging all the time. This book represents a current snapshot of the field. The plan is to update the material at reasonable int...

This book traces the history and technology of several Irons works in pre-colonial Maryland, starting with the Colony of Maryland. The collected information is the result of a long chain of research by tireless researchers in dingy colonial era archives, and in dismal swamps.It tell the story of Richard Snowden, coming to the Colony of Maryland as an endentured servant, and eventually building a mansion for himself and all of his daughters.

This book is an overview of the Civil War ironclads and other ships that changed Naval Warfare forever. It focuses mainly on those ships designed and deployed on inland rivers.Another topic is that of Union and Confederate submarines. The most popular sub was the CSS Hunley, which sank a Union warship, but never returned to base. In fact, the North and the South produced and deployed dozens of different submarine designs.

This book covers the topic of On-orbit repair and servicing of spacecraft. Putting a communications satellite in synchronous orbit will set you back 100’s of millions of dollars. Once on orbit, you hope it survived the launch environment, and operates correctly. You further hope it works at least for its design lifetime, and as long as possible. This approach, based on good engineering design practices, lessons learned, and hope, it the equivalent of buying a new Tesla with non-rechargeabl...

This book covers the topic of the Lunar Orbital Platform-Gateway (LOP-G), a renaming and restructuring of the Deep Space Gateway, a joint Russian-US effort, and associated missions. This is a step beyond the International Space Station, which will be beyond its useful lifetime in a few years, and will be decommissioned, with some parts being reused, and some re-entered. This will result in a new era of human space exploration, further from Earth. Whether we refer to the emerging facility a...

This book is targeted to STEM (Science, Technology, Engineering, and Mathematics) educators and administrators. It is intended to show how Cubesats in particular, and Space topics in general can be applied to their STEM program. It is a train-the-trainer document, pointing out sources of information and support to the teaching professional who knows how to present the material at the appropriate level.The approach for space-related projects for STEM allows small working groups to f...

This book traces the history and technology of several Irons works in pre-colonial Maryland, starting with the Colony of Maryland. The collected information is the result of a long chain of research by tireless researchers in dingy colonial era archives, and in dismal swamps.

This book builds upon computer security, to define security for small spacecraft. We will focus on our newest orbital members, Cubesats. There is a brief introduction on Cubesats and their command control system and control center. Then we will look at cyber attack story's from the commercial and government experience. We will then suggest some updates and new design approached for upcoming Cubesat mission.

This book will discuss the topic of sailing on the solar wind, the continuous outpouring of photons from the Sun. When these photons reflects off the sail, they give a “push” to it, exchange a small amount of momentum. In the vacuum of space, this builds up fairly quickly. As the bombardment is continuous, the velocity keeps building up as well. A solar powered craft can be steered by changing the angle of the sail to the particle stream. It can be used to fly toward the Sun by tacking, a ...

This book covers the topics of the existence of planets around others stars. We think now we are unique in the Universe, but the Universe is very large. This book just touches the surface of this very exciting field. With better telescopes and data processing methods, more planets in our galaxy have been found. Dedicated planet-finding facilities on the ground and in space have been deployed. We now see that planets are rather common in our galaxy. The next big question is, do any of them ...