On October 7 SpaceX successfully flew and landed Grasshopper on its highest flight yet, 2440 feet.
On October 7 SpaceX successfully flew and landed Grasshopper on its highest flight yet, 2440 feet.
Video below the fold.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
On October 7 SpaceX successfully flew and landed Grasshopper on its highest flight yet, 2440 feet.
Video below the fold.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
America. Still home to the coolest tech in the world. And not just for the rocket, but for the commercially available camera drone that captured the flight.
COOL!
Q: What was that uncontrolled flame that was burning to the side of the main engine as it came down? It appeared that something was burning on the rig.
That is probably the gas generator that drives the fuel pumps. More noticeable because the rocket is descending as opposed to ascending.
In particular, it was the fuel-rich exhaust from the gas generator powering the pumps. Making it fuel-rich allows for lower drive turbine temperatures and for a reducing atmosphere at the drive turbine blades, both of which contribute to a more reusable engine. That means, however, that when the exhaust is dumped overboard, it burns in any atmosphere around the rocket at the time.