Conscious Choice cover

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of founder of the Mars Society.

 

Available everywhere for $3.99 (before discount) at Amazon, Barnes & Noble, and all ebook vendors, or direct from the ebook publisher, ebookit. And if you buy it from ebookit you don't support the big tech companies and I get a bigger cut much sooner.


Starship prototype #5 passes cryogenic test

Capitalism in space: SpaceX’s fifth Starship prototype #5 last night successfully completed a cryogenic test of its tanks, setting the stage for its first vertical test flight.

SpaceX’s Starship SN5 prototype performed a cryogenic proof test at the launch provider’s Boca Chica, Texas facility on Tuesday evening. The test marked a rapid recovery for SpaceX – managing to return to testing a month after the previous vehicle exploded on the pad.

The cryogenic proof is when the vehicle’s propellant tanks are filled with liquid nitrogen and pressurized to flight pressures. Then, hydraulic pistons (otherwise known as a thrust simulator) press against the base of the vehicle to mimic the force of a Raptor engine. The proof test will ensure that Starship SN5 is structurally sound ahead of testing with liquid oxygen and methane. Unlike oxygen and methane, nitrogen is inert and will not combust if something were to go wrong.

The article at the link gives a nice overview of the test program, and what is to come next.

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One comment

  • Genghis Khan

    If test was successful why didnt elon quickly jump on twitter as he always does to announce bars attained? Up to today July 19 no confirmation of the pressure achieved has been listed anywhere.

    Things that make you go hmmmm.

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