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50 Years Ago Today, Apollo 8 Changed Humanity's Vision of Earth Forever (theguardian.com)
No one told them to look for the Earth. It was Christmas Eve 1968 and the first manned mission to the moon had reached its destination. As Apollo 8 slipped into lunar orbit the crew prepared to read passages of Genesis for a TV broadcast to the world. But as the command module came around on its fourth lap, there it was visible through the window -- a bright blue and white bauble suspended in the black above the relentless grey of the moon. The Guardian: Before that moment 50 years ago, no one had seen an earthrise. The sight sent Bill Anders, the mission photographer, scrambling for his camera. He slapped a 70mm colour roll into the Hasselblad, set the focus to infinity, and started shooting though the telephoto lens. What he captured became one of the most influential images in history. A driving force of the environmental movement, the picture, which became known as Earthrise, showed the world as a singular, fragile, oasis.
On previous laps Anders had snapped the far side of the moon for the geologists and the near side of it for Apollo's landing site planners. "It didn't take long for the moon to become boring. It was like dirty beach sand," Anders told the Guardian. "Then we suddenly saw this object called Earth. It was the only colour in the universe." Apollo 8 launched from the Kennedy Space Centre in Florida on 21 December 1968. The enormous Saturn V rocket, more than 110 metres tall, had flown only twice before and never with a crew. But on that day the rocket performed. Tucked inside the command module, Anders, Frank Borman and James Lovell looped the planet twice before the third stage blasted them onwards to the moon. They arrived nearly three days later, completed 10 lunar orbits, and headed home for a splashdown in the north Pacific.
Earthrise did not have an immediate impact. Its philosophical significance sunk in over years, after Nasa put it on a stamp, and Time and Life magazine highlighted it as an era-defining image. "It gained this iconic status," Anders said. "People realised that we lived on this fragile planet and that we needed to take care of it." The shot did more than boost the environmental movement. Even Anders, who calls himself "an arch cold war warrior," felt it held a message for humanity. "This is the only home we have and yet we're busy shooting at each other, threatening nuclear war, and wearing suicide vests," he said. "It amazes me." Further reading: Wired.
On previous laps Anders had snapped the far side of the moon for the geologists and the near side of it for Apollo's landing site planners. "It didn't take long for the moon to become boring. It was like dirty beach sand," Anders told the Guardian. "Then we suddenly saw this object called Earth. It was the only colour in the universe." Apollo 8 launched from the Kennedy Space Centre in Florida on 21 December 1968. The enormous Saturn V rocket, more than 110 metres tall, had flown only twice before and never with a crew. But on that day the rocket performed. Tucked inside the command module, Anders, Frank Borman and James Lovell looped the planet twice before the third stage blasted them onwards to the moon. They arrived nearly three days later, completed 10 lunar orbits, and headed home for a splashdown in the north Pacific.
Earthrise did not have an immediate impact. Its philosophical significance sunk in over years, after Nasa put it on a stamp, and Time and Life magazine highlighted it as an era-defining image. "It gained this iconic status," Anders said. "People realised that we lived on this fragile planet and that we needed to take care of it." The shot did more than boost the environmental movement. Even Anders, who calls himself "an arch cold war warrior," felt it held a message for humanity. "This is the only home we have and yet we're busy shooting at each other, threatening nuclear war, and wearing suicide vests," he said. "It amazes me." Further reading: Wired.
all the retards claiming the picture is fake because "you can't see any stars in the background"...
Seven puppies were harmed during the making of this post.
"This is the only home we have and yet we're busy shooting at each other, threatening nuclear war, and wearing suicide vests," he said. "It amazes me."
Greed is the reason. Look for the apologists of endless greed and kill them.
On previous laps Anders had snapped the far side of the moon...
They didn't write "...dark side..."
Doesn't mean we shouldn't go out on an adventure to help appreciate what we have
Your'e all thinking it, I just said it for you
The "gravity" that is "six times greater" is simply the acceleration at the Moon surface.
Technically, g = G*M/(r^2)
where g - "gravity"
G - universal constant of gravitational interaction
M - mass of the object
r - module of the radius vector from the centre of mass to the place where you're measuring g
M = rho*V = rho*4/3*pi*R^3
R - radius of the object
rho - average density
Now, let's set R=r and see the full exppression
g = 4/3 * pi * G * rho * R^3/ R^2 = k * rho * R
where k = 4/3*pi*G for brevity.
Now, 6 times = ge/gl = (k * rho_e * R_e) / (k * rho_l * R_l) = (rho_e/rho_l)*(R_e/R_l)
That is, the "6 times" thing depends both radius and density, so there's totally no need for Earth to be "six times larger" for the surface acceleration due to gravity to be 6 times larger than that of the moon. It is necessary that average density times the radius is six times the same for the Moon.
Checking if that's true is left as an exercise for the student.
Its philosophical significance sunk in over years, after Nasa put it on a stamp,
1) It's spelled NASA, not Nasa
2) The USPS issues stamps. They decide what goes on stamps. NASA or someone else might have suggested it, but ultimately it's the Post Office that decides.
Sincerely,
Steph Curry
Let's feed into their whacky conspiracies and see where it leads them all, just for the hell of it.
"Hey, by golly, you're right, no stars! We've been duped! Go take those phonies on! Here's $10 for your cause..."
The worst that can happen is enough of them believe it to vote a conspiracy nut into office. But since we already have one...
Table-ized A.I.
that the apollo 8 astronauts read from the Book of Genesis on Christmas Eve as they were making a television broadcast from space. It was the most watched program in history until that point. In that innocent time Government Employees could read from the good book, and the world listened as one.
A nation that has great faith can do great things. A nation without faith in something bigger than themselves will inevitably dissolve in wide spread self hatred and backbiting.
Just saying.
I was 10 years old at the time, some 4-5 years later the 2 most popular posters were Earthrise and Dark Side of the Moon.
Aaachoo! Hey, what's wrong with you, I see plenty of stars.
Table-ized A.I.
For a high-resolution simulation of the taking of the photograph, see: https://www.youtube.com/watch?...
Narrated by Andrew Chaikin, author of "A Man on the Moon".
A rat done bit my sister Nell
With whitey on the moon
Her face and arms began to swell
And whitey's on the moon
I can't pay no doctor bills
But whitey's on the moon
Ten years from now I'll be payin' still
While whitey's on the moon
The man just upped my rent last night
Cause whitey's on the moon
No hot water, no toilets, no lights
But whitey's on the moon
I wonder why he's upping me?
Cause whitey's on the moon?
Well I was already giving him fifty a week
With whitey on the moon
Taxes taking my whole damn check
Junkies making me a nervous wreck
The price of food is going up
And as if all that shit wasn't enough:
A rat done bit my sister Nell
With whitey on the moon
Her face and arm began to swell
And whitey's on the moon
Was all that money I made last year
For whitey on the moon?
How come I ain't got no money here?
Hmm! Whitey's on the moon
Y'know I just 'bout had my fill
Of whitey on the moon
I think I'll send these doctor bills
Airmail special
To whitey on the moon
The Earth's radius is roughly three and a half times that of the Moon.
One of the nifty demonstrations they make you do in vector calculus is the proving that you can treat a spherical body like a point of the same mass for purposes of gravitation. The Earth is roughly 82x as massive, and 82 / 3.7^2 is 5.9.
Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
PFFFFF yeah right. "Changed humanity's vision of Earth forever."
If that's the case then why do we have to STILL endure climate science deniers and demonic entities like humpty trumpty who are hell bent on destroying the planet for the sake of their precious money?
You diseased creatures really need to stop patting yourselves on the back. NOBODY cares. You failed, utterly, and you'll find your pathetic selves extinct by your own filthy hands in less than 300 years.
"People realised that we lived on this fragile planet and that we needed to take care of it."
Never forget!
We could change things so that isn't the case anymore, it would be easier than you think except for one little detail: getting everyone on board with the idea. The rest is just details. We could still have capitalism and democracy without every gods-be-damned thing being about 'profit'.
Time travel to this special report aired by CBS on Dec 27, 1968 without commercials
https://www.c-span.org/video/?...
Later in this program includes interview with Tom Kelly of Grumman who discusses the LEM. Kelly wrote an excellent book about the design and construction of this spacecraft many decades later, very insightful.
mfwright@batnet.com
- Liking the photo
- Would like 90% of the money spent on Nasa since the last moon landing back in taxpayers pockets
Your argument assumes constant average densities for each body. Not true in general, but letting that go...
To finish your argument, ge/gl = (rho_e/rho_l) * (R_e/R_l). Now R_e/R_l = 3.67 and rho_e / rho_l = 5.51 g/cm^3 / 3.34 g/cm^3 = 1.65 So g_e/g_l ~= 3.67 * 1.65 = 6.06.
Not bad, but the fact is that the average densities rho_e and rho_l are determined from the observed mass of the body divided by its observed volume. The better approach is to use the masses of the bodies, and the fact that an inverse-square force acts as though a spherical body's mass is concentrated at its center. Then (G*M_e/R_e^2) / (G*M_l/R_l^2) = (M_e/M_l) / (R_e/R_l)^2 = 81.3 / 3.67^2 = 6.04.
A nod to "hey!" below, who already posted a similar argument.
If it weren't for deadlines, nothing would be late.
The national program to put an American on the moon significantly advanced the pure and applied sciences. The program was immensely successful because it was implemented during an era when merit was rewarded.
Nowadays, ethnic or racial ancestry is rewarded. Preferential treatment for Hispanics is the new reality.
Preferential treatment includes affirmative action (AA). It is gross discrimination against Americans of European or Asian ancestry.
Due to AA, an Asian (or European) must score roughly 300 points higher than a Hispanic, on the Scholastic Aptitude Test, in order for the admissions committee (of Princeton University) to give the Asian (or European) equal consideration with the Hispanic.
"'[Affirmative action] offends me,' [Yukong] Zhao continued, telling me he believes Chinese-Americans have faced far more discrimination than Latinos. 'Why [do] Hispanics ... get higher preference than Chinese-Americans, or Japanese-Americans?'" (Zhao was interviewed for a report published by BuzzFeed News.)
Fascinating.
Are you an aspie, by any chance?
Excellent thanks!
https://www.pbs.org/video/earthrise-k9imny/
How it happened described by the guy who did it.
NASA explanation.
https://www.youtube.com/watch?time_continue=1&v=LHbFIieK-uo
For this reason, God sends them a powerful delusion(operation of wandering)(planet) so that they will believe the lie.
Mystery Red of the Great American Eclipse
It has blood on it!
NASA Allais Effect Eclipse Experiment
Germans understood how to market their new NASA to the wider US public.
Make the image ready for publication and easy to print so its propaganda value would be easy to spread.
Domestic spying is now "Benign Information Gathering"
The USA got the best Germans. The merit was in attracting and getting the best Germans to the USA. Quickly and without any "war" questions.
Before the Soviet Union, France and the UK could make an offer of employment after WW2.
Domestic spying is now "Benign Information Gathering"
i believe that is the definition of capitalism
But keep thinking you won't. It's very intelligent of you.
This is the only home we have and yet we're busy shooting at each other, threatening nuclear war, and wearing suicide vests
Literally none of those affect the planet. Even nuclear war would only cause a slight change in its atmosphere for a few decades. For a planet that's been around for 4 billion years, that's nothing.
Perhaps what he's actually going for is global warming. But killing people is a great way to stop global warming. Every living person contributes to GHG emissions because we still can't feed and clothe them without replacing forests with grasslands and digging up carbon-based fuel. If half of humanity died from nuclear war, our GHG emissions would be cut in half.
Greed is the reason. Look for the apologists of endless greed and kill them.
Greed is not why the planet's overpopulated. You're better off blaming people like Fritz Haber and Edward Jenner.
"On September 18, 1968, Zond-5 became the first spacecraft to circle the Moon and return to land on Earth. It photographed Earth from a distance of 90,000 kilometers,"
http://www.planetary.org/multimedia/space-images/earth/C_Zond05_1.html
According to Anders (in his biography) the media showed the image the wrong way. When he took the photo, the moon didn't look like the horizon - it was rotated 90 degrees. :)
And the Apollo 8 crew got in a bit of trouble for reading the first parts of the book of Genesis:
* https://en.wikipedia.org/wiki/Apollo_8_Genesis_reading
Asian culture = cheater culture, not science or discovery culture. Asian grades and statistics always should be viewed as suspect. This is all you're griping about. There's no merit in Asia.
Let's just cease all space R&D since we're never leaving this planet
Moron.
Well then you agree with what I've said numerous times before: what we have now is 'capitalism out of control', a perversion of what it's supposed to be.
First, Moon density is established firmly by the geological study of moon rock samples, and not by estimates of it's mass, so it is a truly independent measurement. This is an important part of the argument above, which you and the illiterate idiot you "shout out" to fail to see.
The rest of my argument refutes the idiot above by separating the factors that determine the gravity into two truly independent variables, and showing the fallacy of the original argument by explaining why there is no need for the Moon to be "six times larger".
You're a bit of an idiot like him - you don't understand the fallacy, and you don't understand what is an effective refutation. In your final calculation, you have a hidden dependency on the volume in your mass guesstimate, so someone who understands basic physics can still point to it and ask the same question, "why isn't it 6 times bigger". Not possible with the argument I make.
Go back to school.
Yes, and I fucked your mother almost a year before you were born. Sadly, you got the "aspie" part from me, and the "smarts" from her, son.
Captcha: "indeed", the AI confirms it.
First, Moon density is established firmly by the geological study of moon rock samples, and not by estimates of it's mass, so it is a truly independent measurement. This is an important part of the argument above, which you and the illiterate idiot you "shout out" to fail to see.
The rest of my argument refutes the idiot above by separating the factors that determine the gravity into two truly independent variables, and showing the fallacy of the original argument by explaining why there is no need for the Moon to be "six times larger".
You're a bit of an idiot like him - you don't understand the fallacy, and you don't understand what is an effective refutation. In your final calculation, you have a hidden dependency on the volume in your mass guesstimate, so someone who understands basic physics can still point to it and ask the same question, "why isn't it 6 times bigger". Not possible with the argument I make.
Go back to school.
"Go back to school?" No thanks. I have a PhD in physics already.
You can determine a planetary object's mass from its orbital motion with other massive bodies. And there is no need for density or volume at all in the calculation of the force of gravity from a given distance away from a planetary body -- even if that distance is the object's radius, i.e., you are on its surface. You can treat the entire mass of the spherical object as though it was concentrated at the center. That was the point that "hey!" and I made.
A planetary object's density changes as you go deeper into it, due to the pressure of material above. Inferring its entire density from surface samples alone is just wrong. Your argument assumed a constant average density -- in effect you simply disguised the planetary mass as a "constant" average density multiplied by the planet's volume, and came up with an answer that still works (as I showed) if you (wrongly) assume a constant average density of M/V. But again, you don't need either the density of the volume. You just need the mass and radius of the object.
You might want to consider going back to school yourself. Charm school.
If it weren't for deadlines, nothing would be late.
There is no other capitalism. You can believe that capitalism can coexist with a true democracy only if you're ignorant about the ecnomics of public finance.
Yeah, I know, everyone on slashdot has several PhD's in various subjects. The less literate, the more the PhDs. You're no exception :)
Then things have to change. We can't keep going the way we are.
The one thing that must happen—and will not—is the prohibition of lending money for profit.
Usury is what allows all the money to "trickle up" to the 1%.
There is a difference between 'capitalism with a social conscience' and 'profit above all else'. What we have right now is way too much of the latter. This must change. IDGAF what some AC like you says either, I believe I am right, and I also believe I am FAR from alone in this.