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Guru

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What Goes Up...

02/19/2017 8:14 PM

comes back down almost perfectly. again

https://youtu.be/VVWhUdXDdHA

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Guru

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#1

Re: What Goes Up...

02/19/2017 11:03 PM

Picture perfect landing....

Live chat ISS

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#3
In reply to #1

Re: What Goes Up...

02/21/2017 12:56 AM

Now THAT is really impressive!

I wonder if there was any human intervention during the stage 1 return. I suspect that it was entirely autonomous.

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#2

Re: What Goes Up...

02/20/2017 10:33 AM

No more getting down on a barge, fred?

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#4

Re: What Goes Up...

02/21/2017 10:03 AM

In ten years, people will be wondering what, other than a good salary, possessed these engineers to pursue this strategy. Idiotic.

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#6
In reply to #4

Re: What Goes Up...

02/21/2017 7:46 PM

What's idiotic about avoiding multi-million dollar throwaway items?

I doubt if it will take that long to find out that you were wrong...

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#7
In reply to #6

Re: What Goes Up...

02/21/2017 9:39 PM

I was talking theory, re vertical take off and landing. Carry fuel into orbit and return with it?

We shall see what pans out, but it is fun to watch..

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#8
In reply to #7

Re: What Goes Up...

02/21/2017 11:22 PM

The first stage never gets anywhere close to orbit. They've undoubtedly calculated the trajectories so it lands with only enough fuel to counteract a few unexpected wind gusts. Much better to waste a few 10s of k$ in fuel, than to waste 10s of millions in a "disposable" rocket.

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#9
In reply to #7

Re: What Goes Up...

02/22/2017 10:57 AM

Aside from its interesting visual, the purpose is to perfect the take off and landing technique to be used for Mars Exploration since space planes need runways and as yet we have been unable to find a Martian contractor capable of building the five mile long runway.

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#10
In reply to #9

Re: What Goes Up...

02/22/2017 11:26 AM

I see, thx. I do not believe that many people would infer that goal for this project, they think, as dkwarner has stated, that this is a practical way to reduce costs for space missions from earth, not withstanding his comment that they do not come close to space. To launch propellant ( at very very high cost) that will be returned to earth is the apparent issue that I am pointing at. Your explanation is also interesting, but a bit irrelavent, as all practical variables are inconsistent, ie gravity, atmosphere, temperature. I do love a good experiment that involves massive amounts of fuel, though.

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#11
In reply to #10

Re: What Goes Up...

02/22/2017 12:25 PM

That's one of the challenges to being Elon, He thinks so far out of the box as to be in a different paradigm entirely. The point of the exercise stems from the realization that the rocket will have to be able to land and take off by itself in a situation where we have little information or control and frankly, none in real time. The understanding that the rocket will need to carry enough fuel to make the journey, the landing, the take off, and return voyage all on its own. When you think about it, this dovetails with his Autodrive efforts at Tesla. Ultimately he is working on a form of AI and these are two real world test beds where the machines and the engineers are both learning.

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#12
In reply to #11

Re: What Goes Up...

02/22/2017 12:46 PM

When we go to Mars, we will have a mountain of information. We will have sent many robotic explorers and mapping missions. I expect we will have at the very least, shelter structures and material processing operations. Those challenges seem to be as tough as just being Elon.

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#13
In reply to #12

Re: What Goes Up...

02/22/2017 6:19 PM

Exactly and all of that will need to be in place before people arrive so guess what is needed to make all that happen? Some damn smart machines. The landing is the easy part LoL.

As for being Elon, that level of genius usually comes with it's own demons.

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#14
In reply to #13

Re: What Goes Up...

02/23/2017 8:52 AM

robots don't need vertical landing.

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#15
In reply to #14

Re: What Goes Up...

02/23/2017 9:52 AM

A gentle vertical Landing might allow the robots to be more complex than the landing methods used so far on Mars.

Also, with a vertical landing, the rocket is already in the correct position for the next launch.

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#16
In reply to #15

Re: What Goes Up...

02/23/2017 10:15 AM

A two hour ride in a limo would be nice, too, but not possible. To be clear, I am not trolling for an argument, but this environment of alternate facts has me on edge. If your thesis is correct, that this massive corporate expenditure is focused on perfecting a Mars landing, why is the effort to prepare for the landing with robotic missions not on Elon's radar? Building structures. Mapping the planet, so that we do actually have landing data. Saving Humanity would be easier on the Bottom of the Marianis Trench than on Mars. Why not just work on this super cool blue marble we call home for a bit, so that it will last a few hundred more years. It is great science, for sure, but his hobby is not my dream.

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#17
In reply to #16

Re: What Goes Up...

02/23/2017 11:55 AM

I do agree that perhaps we would be better serveed working closer to home from a practical aspect. But, since he wants to spend his own money for this adventure I say let him have at it.

As for me, I would think any first step off this rock should be to the moon. The proximity and the fact that we have some experience already at getting there and landing we should take advantage of this and build our first extraterrestrial base there.Work the bugs out, learn the lessons, and then make the shot for Mars. Yeah, I know, the moon just isn't sexy anymore, but when is practical ever sexy?

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#18
In reply to #16

Re: What Goes Up...

02/23/2017 11:48 PM

"Saving Humanity would be easier on the Bottom of the Marianis Trench than on Mars."

I'm not at all convinced that that is true! I just recently saw something about how the organisms at great depths have very high concentrations of pollutants... and dealing with that kind of pressure is no small thing...

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#5

Re: What Goes Up...

02/21/2017 11:03 AM

He makes it look easy.

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