Recent Posts

Pages: [1] 2 3 ... 10 Next
1
Burma-Shave!

I tried to go with the meter and rhyme scheme of a stanza of William Blake's "The Tyger", but that didn't leave many free syllables to work with.  While I'm normally content to stay in limericks, various rhyming quatrains, and other constrained forms, it does seem as if the challenge needs to breathe a little more than those may accommodate.  And so, here's an alternate entry:


    A Falcon 9 of type not yet e'er flown
    With Bangabandhu in the fairing set
    Will sit atop the pad there on its own
    As nearer to the zero time we get
    How SpaceX all the challenges has met
    We marvel as we watch these Falcons fly
    This newest one will be the best one yet
    (And soon the fairings too will be caught dry)
    The global manifest's increasing pie
    Will all the more grow as the prices drop
    This paragon of falconry, Block 5
    Is miles yet from where the trend will stop
    And so we now join in our Elon's glee
    To cheer aloud, "Onward, Recovery!"


It's been a while since I've composed a sonnet in more or less Spenserian form, but I suppose it'll do.  ;D
We stand in the shadow of greatness...
Wow!
2
Missions To The Moon (HSF) / Re: Startup Moon Base Concepts
« Last post by DistantTemple on Today at 01:01 AM »
A Lunar Outpost could consider using a roughly 70% percent oxygen and 30% percent nitrogen atmosphere at 5 PSI - similar to Skylab - to reduce chances of oxygen toxicity and to reduce pre-breathing time for EVAs.
I hope margarine/butter or other greases won't burst into flame! The habitats could be closer to Earth atmos, and these larger "work/storage/transition" spaces at intermediate pressures like this 5psi at O, 70%/N, 30%
3
Fromongoing AMA

Quote from: Andy Lambert(VP of Production  SpaceX) on Reddit AMA(Author added by DistantTemple)
What everyone should be aware of with regards to BFR is that it is really in the development “trade space.”
This means nothing is fixed and anything can still change.
By the time something is published it probably already has.
We will be doing production development at the Port of LA.

By golly! So there is a chance they could switch out Raptors for RL-10's, right?  ::) Or a quantum disruption drive?  I mean after all, anything can change!

This kind of quote is
A) first of all about production and
B) is silly to use here, because of COURSE nothing is set in stone. Obviously. But we have to work with the information we have at hand.
The quote was taken from one of Andy Lambert's replies at "I am Andy Lambert, SpaceX's VP of Production. Ask me anything about production & manufacturing, and what it's like to be a part of our team!"
And is valuable new information in this discussion. Although the OP didn't make this obvious... unless you followed his link.

Yes, but it is a "truism" (a claim that is so obvious or self-evident as to be hardly worth mentioning) - and the source does not matter. I knew who he was quoting - Of course everything is up in the air. BFS might never be built, even! To then use a truism to discredit previously stated information from SpaceX is taking it a bit far, which is why I replied with sarcasm.

Could such a detail (gimbal of vac engines) change? Yes. Should we treat it as fact unless we have information that strongly suggests otherwise? IMO - YES!

If that simple standard is not upheld, we could quote that "truism" to discredit every detail. People are using it to doubt the 9m tank diameter, for crying out loud.  :P

Imagine this scenario being repeated over  and over:
User A: Elon just tweeted that X is happening!
User B: Yes but Lambert said that "everything could change", so they are doing Y!
Do you see my point?
OK Yes... And Lambert didn't say what would or wouldn't change... and it really would be a waste of space for us to start the 9m debate for the 100th time.
However he is the VP of Production, and he said it pretty clearly
"This means nothing is fixed and anything can still change.
By the time something is published it probably already has."

So its like he's really putting it out there.
4
It's probably relevant to repost his swearing in ceremony in this new thread:


5
Q&A Section / Re: Lunar meteor impacts
« Last post by Phil Stooke on Today at 12:43 AM »
Not impossible but rather unlikely.  It could also be a chance alignment of the Moon with a satellite briefly reflecting sunlight off a facet.  There are lots of observations of small impacts in the last decade or so, taken with telescopes viewing the night side of the terminator, and some of the resulting craters have been seen by LRO.  The telescopes are doing long impact searches, dedicated searches - it would be a remarkable coincidence for an observer to catch one by chance.  Also they are faint, so an eye-ball observation would have to be a larger impact.  Let's see if any other astronomical observations of this event show up. 
6
Is this a crude drawing of a Tundra/EKS early warning satellite? It's on the history page of the website of OAO Kometa, the prime contractor.

http://www.corpkometa.ru/index2.php?url=history_spravka.htm&id_menu=9

The caption says "satellite of the ballistic missile early warning system". Its definitely not one of the earlier generation early warning satellites built by NPO Lavochkin (US-K, US-KMO). The Tundra bus is built by RKK Energiya and similar to that of the Yamal satellites.



very similar.

http://russianspaceweb.com/eks-tundra.html
7
Space Science Coverage / Re: Astronomy Thread
« Last post by eeergo on Today at 12:42 AM »
 :-[


This is the level now in scientific divulgation?

An article riddled with 5-year-old-worth jokes, glaring misspellings (Uranusians? really?), repetitions (how many times can you say fart in an article and not try to use synonyms?) and no actual science to convey, apart from the fun fact hydrogen sulphide smells bad. And it's actually just a dumbed-down version of the original release: https://www.gemini.edu/node/21050 - which isn't even directly linked to! Rachael Feltman either had a terrible workday or doesn't deserve the atrium she's writing for; motivated high-school bloggers regularly do better than that.

I'd say the takeaway message would be this one, neglected in the PopSci article:


Quote
According to Fletcher, when a cloud deck forms by condensation, it locks away the cloud-forming gas in a deep internal reservoir, hidden away beneath the levels that we can usually see with our telescopes. "Only a tiny amount remains above the clouds as a saturated vapour," said Fletcher. "And this is why it is so challenging to capture the signatures of ammonia and hydrogen sulfide above cloud decks of Uranus. The superior capabilities of Gemini finally gave us that lucky break," concludes Fletcher.

The detection of gaseous H2S at these pressure levels adds to the weight of evidence that the principal constituent of 1.2–3-bar cloud is likely to be H2S ice.
8
Fromongoing AMA

Quote from: Andy Lambert(VP of Production  SpaceX) on Reddit AMA(Author added by DistantTemple)
What everyone should be aware of with regards to BFR is that it is really in the development “trade space.”
This means nothing is fixed and anything can still change.
By the time something is published it probably already has.
We will be doing production development at the Port of LA.

By golly! So there is a chance they could switch out Raptors for RL-10's, right?  ::) Or a quantum disruption drive?  I mean after all, anything can change!

This kind of quote is
A) first of all about production and
B) is silly to use here, because of COURSE nothing is set in stone. Obviously. But we have to work with the information we have at hand.
The quote was taken from one of Andy Lambert's replies at "I am Andy Lambert, SpaceX's VP of Production. Ask me anything about production & manufacturing, and what it's like to be a part of our team!"
And is valuable new information in this discussion. Although the OP didn't make this obvious... unless you followed his link.

Yes, but it is a "truism" (a claim that is so obvious or self-evident as to be hardly worth mentioning) - and the source does not matter. I knew who he was quoting - Of course everything is up in the air. BFS might never be built, even! To then use a truism to discredit previously stated information from SpaceX is taking it a bit far, which is why I replied with sarcasm.

Could such a detail (gimbal of vac engines) change? Yes. Should we treat it as fact unless we have information that strongly suggests otherwise? IMO - YES!

If that simple standard is not upheld, we could quote that "truism" to discredit every detail. People are using it to doubt the 9m tank diameter, for crying out loud.  :P

Imagine this scenario being repeated over  and over:
User A: Elon just tweeted that X is happening!
User B: Yes but Lambert said that "everything could change", so they are doing Y!
Do you see my point?
9
Q&A Section / Lunar meteor impacts
« Last post by Eric Hedman on Today at 12:33 AM »
About 20 minutes ago (about 7:10 PM CDT) I was looking up at the moon with a clear sky and saw a quick white point flash on the upper right quadrant on the moon.  Could it have been a meteor strike on the Moon?  How big a rock would it have to be for the flash of light to be visible from Earth?  I'm just curious as to what it could have been.  Ideas?
10
Good luck!
Excellent Guy.... Brilliantly knowledgeable on all the question asked at FAA Commercial Space Conference (CSC); detailled, technical, and fully informed. And totally passionate about space.

I am putting aside my concerns about his climate science denial, and hope he is not destructive on that. And his strong military slant is an issue, but I think it will turn out a great asset, and he will bend the "race" for continued US eminence,  to much faster and more flexible progress.

Almost his opening remarks were "You are my secret weapon" ... that is the commercial space companies sitting in front of him. And (obviously it was the CSC ) he kept enthusiastically explaining how Commercial Space was going to be more involved, in defense, in weather, on the Moon.... Changing the balance between Gov, and CS was his main theme....

I look forward to great leaps forward... just at the right time.
Pages: [1] 2 3 ... 10 Next