Domain: nasm.edu
Stories and comments across the archive that link to nasm.edu.
Comments · 21
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Re:the outer outer planets...
Voyager 2 got to Neptune in about 12 years. Pluto was actually closer than Neptune during that time. I guess it could still have taken longer to get to Pluto because of the positions of other planets that you'd use for a gravity assist, but I really doubt it'd take an entire generation.
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Mapping mercury
As a note about fully mapping mercury, it seems to be one of the forgotten planets nobody talks about much, but has had some attention in the past.
Still, there are some interesting Mariner shots of the planet online. Not quite half has been mapped yet, but there's some interesting features that make it unique.
nude macgirls webcam -
NASA Langley does research with RC planesI worked for a summer internship at NASA Langley in Hampton, VA, and had the pleasure of assisting their chief radio-control builder in constructing and flying a couple remote-controlled model planes they use for research. Contrary to the huge prices in the parent post, NASA got a lot of value for very little money. We basically used off-the-shelf RC equipment, hand-built the planes just like hobbyists do it, and flew them very much like hobbyists do it.
The main differences from traditional RC hobbyists were the onboard telemetry system, and the means of getting some of these models launched.
One of the primary programs in which I participated involved the use of a sailplane model. Rather than launching from a big slingshot, like most hobbyists, we modified an Eagle-style RC trainer with a mount to carry the sailplane, and we literally flew the stacked planes up to altitude using the powered model for thrust, then did an inflight separation (somewhat like Enterprise shuttle coming off the top of a 747 during very early shuttle program tests).
Also, the NASA folks had a pretty interesting telemetry (remote data collection) setup, which reversed the conventional use of a stock RC radio. The transmitter was mounted in the airplane, and the control sticks taken apart and hooked up to various sensors, and the receiver was on the ground, with the servos hooked up to pens on paper rolls. That way, whenever the onboard sensors moved, the pens also moved. A poor-man's remote sensing system, for just a few hundred dollars!
The results of this work have shown up in many places - from sailplane wing design to general-aviation stall prevention devices to high-visibility X-plane programs.
Granted, in 1989 when I did this work, autonomous flight was rare, and we did all this work by piloted remote control, but my point is that it was done for just hundreds of dollars per model, not multiple thousands. Yes, the government sometimes DOES save money.
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Washington DC/Baltimore info
I can give you a couple of hints for the area around Baltimore and Washington:
As well as checking out the Smithsonian Air and Space Museum go see the restoration facility where they actually work on the planes. They have so many planes they will be working on them for years. You can tell the un-restored ones by the oil dripping from the engines
Skip the spy museum and go see the the real spy museum, the NSA museum. They let you play with a real German Enigma machine that is right next to the electro-mechanical computer that cracked it's codes. The NSA is so secretive with their information that I didn't find out until later what was the key that allowed a machine to recognize when it found the right key in an encrypted message. It was because the German message always started with the same format.
For the best collection of railroad engines in the world check out the B&O Railroad museum in Baltimore, just visiting the parking lot you can see, touch, and climb on 15 or 20 historic steam engines -
Goodbye Muldar, Farewell Scully
You can definitely feel the ionic wind underneath the thing.
Jeez, you mean we've been listening to these stupid UFO stories for 50 years now, and it's all because all these crackpots didn't notice a slight breeze????I've often wondered where the UFO mythology came from. Academics talk about cold war paranoia and the semiotics of the space age. Being of a more prosaic turn of mind, I've always assumed that stories about the AvroCar grew in the telling. But now it just turns out that a bunch of nitwits can't distinguish ozone from antigravity. Yep, the truth's out there all right, but I'm too tired to look for it!
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Not jets, rockets. [many links]
Germany created and flew the first jet fighters.
True, and the first rocket fighter, the Messerschmitt Me-263 `Komet' and later the Bachem Be349 `Natter'.
Unfortunately for them, the war was almost over already.
That wasn't the problem. The problem was that Hitler was a gonzo and first prevaricated, then ordered that they be built for bombing - which they were mediocre at, rather than air defense - which they were good at. Mind you, some of the big Yank prop planes could still catch them and shoot them down with a diving start.
Commercial jets are descended from those planes.
No, commercial jets were quite different in design from the start. The British Meteor jet fighters did look quite similar to the 262. However, many of our modern rockets are descended in one way or another from the V2.
The really innovative German 'planes were the Blohm und Voss models. My personal favourites are the asymmetrical 237 and mid-engined mid-propped 192, although other models like the 111 and 170 have their own special shock value too. (-:
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Re:Hundred Years?
...maybe we could just lock in the coordinates on our freight transporter and teleport it directly into the sun. You're thinking 1000 years, not 100. Think of what we have accomplished in the past 100 years and stop being ridiculously optimistic.
Well first of all we did learn how to split the atom and how to fuse several of them together. We also learned how to make materials that can conduct electricity without resistance at fairly high temperatures. We can travel underwater for months at a time without coming to the surface. We managed to get to outer space and visit the moon. Some of our creations have even left the solar system.
Not only that, we also have devices as small as a match-head that can do billions of calculations every second. These devices can be put together into a machine that can hold their own against the best chess players in the world. People can not only fly, but many do so for less than a week's wages and they travel from one part of the world to another in just a few hours, going faster than sound can travel in some instances. There are now devices which can create light so intense and organized that it can cut through just about any substance. Many diseases which have killed billions of people in their childhood have been eradicated. We have managed to learn how to replace broken-down organs in order to prolong life and even how to make copies of people and animals.
In short, we have come a long way in the past 100 years. If you were to bring someone from 1902 to the present they would most likely be utterly astounded by what we have accomplished in so short of a time. Many theorists already have some ideas of how we might be able to eventually "teleport" physical objects, they have done it for information and are seeking to expand it further. Where will we be in 100 years? 1000 years? I'm not sure, but judging from the past 100 years it would not surprise me to find out that a lot of the discoveries that you have just scoffed at are around in a century, or even less. -
no such thing as a turbo supercharger
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Link for images and ??
Images are here:
http://www.nasm.edu/ceps/etp/uranus/uran_moons.htm l
Now, the thing that puzzles me is that this guys theory isn't any different from the previous theory.
The "explosion" (aka impact by comet or something) theory says that the act of the moon heating up as it reformed caused volcanic like activity, which stopped when the moon finally settled.
The new theory says that some random and undetermined force (maybe tidal forces, maybe something else) caused the moon to heat up and cause volcanic like activity. Um, that's the same thing! All this theory does is say "no, it wasn't an impact that caused this! It was... Something Else!" What else? "Well, we're not sure, but man this is getting me good publicity for my PhD!"
*sigh* -
XAO-3This will come in handy if Good year ever brings back the XAO-3 Inflatoplane
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Think out of the bottle
Ground laser launching relies on superheating air, plus it's only been used to shove vehicles directly up, so it's basically a really cool but expensive way to replace July 4 bottle rockets.
That doesn't make sense. Isn't going up the hard part? Consider the S1-C Stage used in the Apollo missions. It expended 5 millionpounds of fuel just to lift the rest of the hardware out of the mesosphere. This compares to 1 million pounds get the rest of the way, and a few thousand pounds to get back. Finding a more efficient alternative to such a large, expensive, non-reusable vehicle wouldn't complete eliminate the need for rockets, but it would certainly make a big difference in the cost of space exploration! -
Re:Wait a secActually, I believe the fuel was the big problem, rather than the oxidizer (a major fuel ingredient was hydrazine hydrate).
And anyway, the EZ-Rocket DOESN'T use hydrogen peroxide, so your comment isn't really relevant to its engine.
Check out the Smithsonian's web page for some info. -
Ho hum
These kinds of feats just don't have the glamor they used to. Especially since his gondola is all tricked out with hi-tech stuff. The balloon even flies itself so that he can sleep. I understand that this is a very tough feat, particularly since this is his 5th attempt at it, but it just doesn't have that extra dimension that makes it very exciting (it isn't a first circumnavigation, because that was done in the 16th century; it doesn't demonstrate the possibilites of future transport or a smaller world; it doesn't have great political implications; nor is it a demonstration of new technologies and engineering). I doubt that 100,000 people will storm the landing zone in celebration if he does make it around.
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Re:wrong date?
Uh, that's not how the date line works. Australia is usually a day ahead of the US.
From http://www.nasm.edu/apollo/AS11/a11facts.htm:
Landed on Moon: July 20, 1969 20:17:40 UT (4:17:40 p.m. EDT)
First step: 02:56:15 UT July 21, 1969 (10:56:15 p.m. EDT July 20, 1969)
That means it was July 21, 1969 in Australia when man first set foot on the moon. So that date is off by two days.
Duh. -
SmithsonianThe Smithsonian's Air & Space Museum has a Cray 1 on display. Look at the specs, the cost, and reflect upon Moore's Law.
Its processing speeds, of around 150 million floating point operations per second, were far above anything else that the time of its announcement in 1976. Those speeds are now matched by inexpensive workstations that fit on a person's desk.
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Golf Club
And the golf club is on display at the Smithsonian National Air and Space Museum in Washington, DC. Stepping into the main lobby of the NASM is simply awesome as they have the Voyager (1st around the world, non-stop, no refueling), X-1 (Yeager's plane), Wright 1903 Flyer, the X-15, and the Spirit of St Louis hanging from the ceiling.
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Re:R2D2's on DisplayThere is one currently sitting in the Chicago Field Museum 'special exhibit' section where the Smithsonian National Air and Space museum is touring their Star Wars magic of myth exhibit. I was there last week, AAMOF.
Don't know if it is a mock-up though. Lots of cool stuff like the star destroyer and x-wing are purported to be original production effects models, but some of the other stuff was mocked-up (Like the Darth Vader costume IIRC)
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Re:Smithsonian
The resident computer historian at the Smithsonian is Paul Ceruzzi; a very knowledgeable guy. So they already have someone, but other museums might not.
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Re:Bad for Pluto-Kuiper expressActually, I it was last March that Pluto's orbit finally crossed back over Neptune's (making Pluto the most distant from the sun).
This happens every 228 years (Pluto is closer for 20 years)
Check out this link.
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NOT Popular Mechanics..... (And Encyclopedia...)
For everyone who can't/won't do a google search themselves.
;-)
Manned Orbiting Laboratory (MOL)
www.google.com/search?q =Air+Force+MOL+&num=10&lc=www
www.airspacemag.com/ ASM/Mag/Index/1998/JJ/Contents.html
www.farhills.org/s/lees/space/air force.htm
Dyna Soar
www.google.com/search?q=dynasoar&lc= www
www.google.com/search?q=dyna+soar+%2Bsmithsonian&n um=10&lc=www&btnG=Google+Search BR> www.arnold.af.mil/aedc/systems/60- 933.htm
www.nasm.edu/galle ries/gal114/SpaceRace/sec500/sec540.htm
www.hq.nasa.gov/offi ce/pao/History/Timeline/1961-4.html
Blue Gemini
www.google.com/search?q=Bl ue+Gemini&num=10&lc=www
student.uq.edu.au/~s373901/land /coldwar.htm
www.hq.nasa.gov/office/ pao/History/SP-4203/ch6-2.htm
LK Lander
www.google.com/search? q=%2BLK+%2BLander&num=10&lc=www
www.interaxs.net/pub/spacey/lk1.htm
www.ninfinger.org/~sven/mode ls/sovietsp/lk.html
Spiral
www.google.com /search?q=%2BSpiral+%2Bspacecraft&num=10&lc=www
www.mcs.net/~rusaerog/spiral/spiral .html
General Spacecraft info
www.rocketry.com/mwade/spaceflt.htm Encyclopedia Astronautica -
Re:unstable orbit
Hmm, a large, stable object already in Earth orbit.
Now where would we find something like that?
Too bad it'd be beyond our technology to get there.