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Old 06-29-2015, 10:26 AM   #341
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So Elon's has been tweeting/working for 19 hours straight and obviously so has the engineering team.

Elon Musk@elonmusk 3h (1 AM PDT)3 hours ago
Cause still unknown after several thousand engineering-hours of review. Now parsing data with a hex editor to recover final milliseconds


This was on a Sunday,and his birthday no less. ....
Well, there's an awful lot on the line, so they need to find out. At this point, Musk is more driven by wanting success than wanting money (or personal time), so there you go.

Although, at some point, it won't make much difference if they figure it out today, or next week. So pretty soon, he should let the team get some sleep so they can be in top mental form to come back and find the problem. Being sleep deprived, they might miss something, and it could take even longer!


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What did Thomas Edison say.
Genius is one percent inspiration, ninety-nine percent perspiration
Yes, but if you've read much about Edison, he was a trial-and-error guy, so it took a lot of work. Tesla (Nikola, not the car company) was the high-level thinker, and could skip a lot of trial and error because he mostly understood what would not work. AC versus DC being a prime example.

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Old 06-29-2015, 10:52 AM   #342
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Falcon has had 18 successful launches. Rockets are complex high energy machines that are very unforgiving of errors. ULA' s record of 40+ successful launches certainly looks impressive at this point. But, at some point they will have a failure also. It's a matter of when not if.
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Old 06-29-2015, 06:32 PM   #343
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Par for the course during a anomaly/mishap in the industry. I've seen people work a regular day and then get called back in on the way home and are up for the next 16 hours working problems. 24 hour work days, while very rare, do happen.
Yep.

heh heh heh -
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Old 06-30-2015, 10:37 PM   #344
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Old 07-01-2015, 08:41 AM   #345
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Unk: Contracting = no unpaid OT.

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He knows. Just glad it isn't him anymore! I too have fond memories of all day and all nighters, can't say I miss them.
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Old 07-13-2015, 07:37 PM   #346
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Pluto pics coming tomorrow! Here is some teaser info.


http://www.nytimes.com/2015/07/14/sc...trip.html?_r=0
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Old 07-14-2015, 08:42 AM   #347
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Pics being taken as we type.

They won't be transmitted back to earth for a while, I think starting very late tonight.
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Old 07-14-2015, 09:22 AM   #348
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Pics being taken as we type.

They won't be transmitted back to earth for a while, I think starting very late tonight.
The download might take a while... from wiki:

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Communication with the spacecraft is via X band. The craft had a communication rate of 38 kbit/s at Jupiter; at Pluto's distance, a rate of approximately 1 kbit/s is expected. Besides the low bandwidth, Pluto's distance also causes a latency of about 4.5 hours (one-way).
The engineering approach on this spacecraft, like Voyager I & II before it is just amazing. They had to go for high reliability in a harsh environment, so much of it is really very simple.

They can't rely on solar power so far from the Sun. So these are nuclear powered, but it is not a nuclear reactor, it is a very simple power source (conceptually simple that is, the implementation is quite demanding).

Basically, they use a chunk of nuclear material at the center, it is just naturally decaying and giving off heat. It is surrounded by thermo-couples, same concept as the thermo-couple in an standing pilot gas furnace - just two dissimilar metals that produce an electrical current when heated.

It is very inefficient, and doesn't provide much power, but no moving parts - very reliable. The craft only needs ~ 200 watts. It gets the job done.

The thermo-couples do degrade slowly (and maybe the heat from the material lessens over this time period?), so the output power does decline over the years. In the Voyagers, they had to keep shutting down systems to keep it alive after it had gone past its expected life.

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Old 07-14-2015, 09:32 AM   #349
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16 months was mentioned as the time it would take to receive all the data New Horizons is designed to acquire. I assume that is also data acquired after today's close flyby.

The data transmittal rate makes your old 56K modem look like a speedster.
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Old 07-14-2015, 09:52 AM   #350
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Sneek Peak - picked up from another forum I hang out on


https://instagram.com/p/5HTXKMoaFL/
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Old 07-14-2015, 08:00 PM   #351
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Spacecraft came through. All is good. This is fantastic!
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Old 07-14-2015, 10:33 PM   #352
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Reminds me of when I volunteered to work late and record live the first landing on the moon when I was in the Army. Exciting!

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Old 07-15-2015, 08:44 AM   #353
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Reminds me of when I volunteered to work late and record live the first landing on the moon when I was in the Army. Exciting!

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Audio or video recording? I guess the only video recorders in 1969 were big bulky $$$$$ studio equipment models?

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Old 07-15-2015, 10:51 AM   #354
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Video, live off the air. The VCR used 2" tape and was as big as a washing machine. Yes. It was a studio machine.

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Old 07-15-2015, 10:57 AM   #355
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Video, live off the air. The VCR used 2" tape and was as big as a washing machine. Yes. It was a studio machine.

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Does this tape still exist?
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Old 07-15-2015, 11:15 PM   #356
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First high resolution photo of Pluto causes concern:
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Old 07-15-2015, 11:21 PM   #357
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First high resolution photo of Pluto causes concern:
+1

saw this online also yesterday, really made me laugh!
Showed it to my wife, she didn't get it at all (she likes the whole Pluto thingie going on but has no idea what a Death Star is).
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Old 07-16-2015, 12:35 AM   #358
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First high resolution photo of Pluto causes concern:


I always thought the Death Star was the size of real planet not a little dwarf planet. Do we think this is God's reaction to insulting Pluto.

Good thing a new star war movie is coming out soon enough to save us.
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Old 07-16-2015, 12:57 AM   #359
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The Death Star is only like 100km in diameter, significantly smaller than Pluto I think (and way smaller than any of the "real" planets! )?
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Old 07-21-2015, 04:37 AM   #360
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So on the 46th anniversary of Apollo 11 the Smithsonian is launching a pretty cool
kickstarter project.

Reboot the Suit: Bring Back Neil Armstrong’s Spacesuit

Quote:
uly 2019 marks the 50th anniversary of the Apollo 11 Moon landing, a feat so breathtaking in its scope and ambition that it captured the collective imaginations of audiences around the world. At the Smithsonian’s National Air and Space Museum, we use the power of real objects to tell stories like this one – stories of the vision, intellect, and courage of men and women who have overcome challenges and pushed boundaries to take the next giant leap for humankind. For the Smithsonian’s first-ever Kickstarter campaign, we are proud to announce plans to conserve, digitize, and display Neil Armstrong’s Apollo 11 spacesuit in time for this milestone anniversary. We want to preserve Armstrong’s spacesuit – and the story it tells of its incredible journey – down to the particles of lunar dust that cling to its surface. Just like the Apollo program, we will accomplish this in collaboration of thousands of people across the country and around the world. And that’s where you come in.
Anyway I've supported the kickstarter project. I figured some of my fellow space buffs might also.
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