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Some Spaceflight Stuff

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Some Spaceflight Stuff

Postby lehman scott » Wed Jul 11, 2012 5:43 pm

Just a few items for folks who have an interest in the US Space Program.

First off, here's a nice video of the recent launch of a classified National Reconnaissance Office spy satellite using the largest launch vehicle in our national inventory, the Delta IV Heavy Heavy Lift Launch Vehicle made by the United Launch Alliance, which is a joint venture established in August 1995 as a Limited Liability Company (LLC), equally owned by Boeing and Lockheed Martin.

This is one Big Ass Rocket. You'll notice that its launch is not as visually sexy as a Space Shuttle launch. This is because all of the rocket motors use liquid oxygen and liquid hydrogen as fuel, just like the Space Shuttle main engines. What made the Shuttle launches so much more colorful was that its two rocket boosters used solid propellant, which created all those stunning bright orange flames when combusting. The nice thing about the H2-O2 rocket motors is that they are much more powerful than solid fuel boosters and their only exhaust product is water - - very environmentally friendly! Anyway, here's the video:



Speaking of the Space Shuttle...

The majesty of a spaceship: Up-close with Atlantis
BY JUSTIN RAY
SPACEFLIGHT NOW
Posted: July 3, 2012

In the quiet, peaceful setting of a storage bay in the northwest corner of NASA's cavernous Vehicle Assembly Building at the Kennedy Space Center on Monday afternoon, a handful of photographers got the chance to walk underneath, around and above the orbiter Atlantis, the spaceship that flew the final space shuttle mission a year ago this month.

The tranquil opportunity allowed Spaceflight Now photographer Walter Scriptunas II to shoot this gallery that captures Atlantis in exquisite detail.


You can see the entire gallery here. Below are a couple photos I picked out to whet your whistle (btw, where the hell did that phrase originate, anyway?):

Image

Image

Image

Image

The Shuttle Space Transportation System (STS) was without question the most complex piece(s) of machinery ever built by humans. As originally envisioned at the close of the Apollo era, the STS fleet was supposed to see launches at the rate of 2 or 3 a month, made possible by the reusable nature of the vehicles, which was also supposed to lower overall system costs. The STS unfortunately never lived up to those expectations, either in launch rates or costs. When you take a look at the complexity of the reentry tiles above, you can see why. After each flight every one of those tiles had to be individually inspected and repaired, if necessary - - which happened a lot.

The retirement of the STS does not spell the end of NASA's manned spaceflight program, however...

NASA shows off first Orion capsule with KSC ceremony
BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: July 2, 2012

KENNEDY SPACE CENTER, FL--The first space-bound Orion capsule, the centerpiece of NASA's post-shuttle push to break out of low-Earth orbit for eventual manned flights to a variety of deep space targets, was officially unveiled at NASA's Florida spaceport Monday. The spacecraft will be outfitted for an unmanned test flight in 2014.


Image

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The Orion space capsule is basically the Apollo space capsule on steroids and can carry a crew of four. The reason why it doesn't look like a regular spacecraft is that what you are looking at is the primary pressure vessel. The outer parts will get added later. It's interesting to see it at this stage - - it gives you a sense of the engineering involved in constructing a space vehicle.

You will also notice the marked absence of a cargo bay. For all of it's cost and complexity, the Space Shuttle's cargo bay offered a unique flexibility that the Orion system just won't have. From here on out, cargos will be sent up on unmanned Delta IV launchers separate from astronauts aboard Orion. It is highly unlikely that another vehicle like the Space Shuttle will ever be built again.

Here's the full news item, and here's a photo gallery with some more shots of Orion, including some very nice close-ups.

Finally, here's a really cool Vimeo of a montage of every Space Shuttle launch in a single video. In case you're wondering, the Challenger disaster is in the second row, sixth panel from the right. Sorry I couldn't embed this, I've never been able to do so with Vimeos.

http://vimeo.com/27505192#

Well, that's it - - hope you enjoyed! Senior Space Cadet lehman scott signing out! *salute* :)
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Re: Some Spaceflight Stuff

Postby E-lad » Wed Jul 11, 2012 6:25 pm

Interesting and fascinating, Lehman!

By the way, I once heard that the word "whistle" has been used to describe the lips,throat or mouth for hundreds of years in England, with the complete phrase appearing in literature at least as far back as the late 14th century. It probably started out as your whistler- or lips.

So, to "wet your whistle" means nothing more than to wet your lips,mouth or throat with a drink.
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Re: Some Spaceflight Stuff

Postby lehman scott » Wed Jul 11, 2012 6:34 pm

E-lad wrote:Interesting and fascinating, Lehman!

By the way, I once heard that the word "whistle" has been used to describe the throat or mouth for hundreds of years, with the complete phrase appearing in literature at least as far back as the late 14th century. It probably started out as your whistler- or lips.

So, to "wet your whistle" means nothing more than to wet your lips,mouth or throat with a drink.


Ahh, ok, thanks, Froggie! I kinda figured the origin was that straightforward, but with English etymology being what it is, one never can tell.
Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change that we seek.
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Re: Some Spaceflight Stuff

Postby lehman scott » Sun Jul 15, 2012 12:53 pm

Just ran across this and thought i'd add to the thread. ISU is the International Space University located in Strasbourg, France, in case you were wondering.

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Re: Some Spaceflight Stuff

Postby zilch » Mon Jul 16, 2012 7:35 am

"Be humble for you are made of earth. Be noble for you are made of stars." A great sentiment.
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Re: Some Spaceflight Stuff

Postby lehman scott » Tue Jul 24, 2012 5:28 am

Just another addendum to this thread.... not to be missed....

http://vimeo.com/45878034
Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change that we seek.
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Re: Some Spaceflight Stuff

Postby lehman scott » Tue Jul 24, 2012 5:29 am

zilch wrote:"Be humble for you are made of earth. Be noble for you are made of stars." A great sentiment.


Indeed it is, zilch... indeed it is....
Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change that we seek.
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Re: Some Spaceflight Stuff

Postby lehman scott » Tue Jul 24, 2012 6:49 pm

SpaceX, Elon Musk's company who last month made the first commercial rendezvous of its Dragon spacecraft with the International Space Station, just released a video of mission highlights.

What really gets my motor revving is all those cheering peeps. Spaceflight is one of those unique human endeavors that can really get people excited and inspired.

Oh, and don't forget - - Curiosity lands on Mars on August 5th!

Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change that we seek.
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Pessimism of the Intellect; Optimism of the Will.
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