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Zero Gravity Flights for the Rest of Us

waynegoode writes "Zero G Corporation, whose motto is "Question Gravity", is now offering zero gravity flights to the general public. For $3000 you get training and a 90 minute ride with 15 periods of 25 seconds of low or zero-gravity: 3 1/3 Mars gravity, 3 1/6 Lunar gravity, and 9 zero gravity. Peter Diamandis, the man behind the Ansari X Prize, worked 11 years to get FAA approval. Previously, such flights were available only to astronauts, researchers, and Tom Hanks; although recently flights for the public began Russia for about twice the price. Story also here."

23 of 332 comments (clear)

  1. First person account by dane23 · · Score: 5, Informative

    Xeni Jardin, over at Boingboing.net has a ticket and is blogging the experience.

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  2. Re:*Ahem* by boeman · · Score: 3, Informative

    Actually this would be quite a different experience than skydiving due to atmospheric drag felt during a dive. Inside the plane all of the air is moving along with you and so there are no drag effects.

  3. Re:And I thought... by Anonymous Coward · · Score: 3, Informative

    Errrr, actually... they've already been there and done that:-
    http://www.imdb.com/title/tt0310288/
    (see the trivia section)

    There's a review here:-
    http://www.dvdtimes.co.uk/content.php?contentid=33 52

  4. You can do this with a single prop plane now. by ozzmosis · · Score: 3, Informative

    You can do this with a single prop plane, it'd be hard to beat 25sec but you can get a good 10sec 0 gravity in one.

    1. Re:You can do this with a single prop plane now. by ndege · · Score: 3, Informative

      Agree. :)

      For those of you who don't have access to general aviation, I would suggest a demo flight at your local flight school. You can take a "Discovery Flight" during which time, you can ask for a "zero G pushover." And, if your instructor is nice, he/she will let you fly the aircraft through the pushover yourself. It is a rush and it is $49

      Here is a useful link: http://learntofly.com/howto/discovery.chtml

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  5. Re:It sounds nice... by jfmerryman · · Score: 2, Informative

    As a skydiver, once you exit the airplane (usually a plane traveling at around 100 mph) you begin to accelerate to terminal velocity which is around 120 mph. During this time, you will feel some sensation of acceleration, but it is certainly not zero-g. Your velocity vector simply moves from forward (where it was when you were on the plane) to downwards (gravity pulling on you now that there's no plane/wings to resist it). After about 10 seconds, the air resistance will fully balance the force of gravity and you will be at terminal velocity and no longer accelerating. Of course if you change your body position your terminal velocity can change (lower surface area, same mass = higher terminal velocity), but it's never truly zero G. After 120+ jumps, I don't even feel like I'm falling anymore. It's more like floating or flying.

    In an airplane the air is still inside, so you can experience true zero G like astronauts do.

    Not saying skydiving isn't fun (it is!) but it's a different thing from parabolic flights.

  6. Re:*Ahem* by Chris_Jefferson · · Score: 4, Informative

    Goddamn, who rated this informative?

    1) "anti-gravity space ship", what kind of rubbish is that?

    2) Actually according to relativity, there is no way of distguishing between acceleration and gravity. Therefore if I put you in a sealed box and either a) leave you floating in deep space or b) put you in free fall then there is no way of you telling the difference (ok, there is as there will be slight air resistance slowing you down, and you could measure the very tiny difference in gravity between the top and bottom of the box, etc.).

    There is always "c) you hit the ground" too of course :)

    but seriously, this really is zero-G for all intents and purposes foras long as they can accalerate you downwards at 9.8m/s

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  7. Other private rides on the Vomit Comet by dpilot · · Score: 4, Informative

    Penn Jillette of Penn & Teller rode the Comet. I was even posted on Slashdot: http://science.slashdot.org/comments.pl?sid=115312 &cid=9770946
    In Penn's article, he mentions another noteworthy Vomit Comet expedition: The filming of the Pr0n movie, "The Uranus Experiment."

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    1. Re:Other private rides on the Vomit Comet by K8Fan · · Score: 4, Informative

      Penn Jillette of Penn & Teller rode the Comet.

      Yeah, I love that story! Here's Google's cache of it...Art Bell's web site no longer has it (apparently the gray aliens told him to take it down).

      Since it's so hard to find, I might as well post the entire thing here. It's not that long:

      Learning to Fly, Strip, and Vomit on a 727

      Penn Jillette

      Since I was a kid, I've wanted to be weightless. I really wanted to go to space, but part of going to space was being weightless. Just to hold something up in front of me, and have it stay right there is the idea of magic. As I got older, I battled gravity. My start in showbiz was as a juggler. Jugglers fight gravity. The hack jugglers cover a drop with a "standard" (meaning it's been stolen so much, those who didn't write it conveniently consider it to be public domain) 'cover' (it doesn't really cover very much, they know the prop is on the floor and they know you're chasing it, bent over like you're chasing a duck) line, "Sudden gust of gravity."

      Now, that I'm 45 years old and I weight 280 pounds, gravity is a less sporting and more real enemy. I'm 6'6" tall and I still remember Leslie Fiedler writing in "Freaks, Myths of our Secret Selves" that "gravity is not kind to those who grow too large." As we get older, it seems the jockey build is healthier.

      No one knows what gravity is. I mean we just don't know. There is no good theory. A good theory in science is one that we're damn sure is true: The Earth goes around the Sun. Evolution is how we got here. No one seriously doubts those. But, gravity, well, we just don't know.

      So, right now, the only way you can feel weightless for more than a couple rollercoaster seconds is by getting far enough away from Earth, or taking the Vomit Comet. The Vomit Comet is how NASA trains astronauts (the Russians must do it too, right?). They take a big old airplane and they go up and down really fast. When they go up, you weight 1.8 times your weight, and when they go down, you weigh around 0.

      The FAA has always given NASA a monopoly on losing all your pounds of ugly fat (along with muscle, bone, and everything else). Astronauts get to ride it, some scientists get to ride it, and that's about it. Ron Howard made some backroom deal (it MUST have included sexual favors) to be able to shoot "Apollo 13," on the NASA Vomit Comet and they talked about it a bit, but it was soon quieted down. You're not REALLY supposed to use a government-funded program to make movies. Not really. I mean, I'm glad Tom, Gary, and Kevin got to fly, but if everyone really thought about it, why can't we all ride?

      A couple free-market nuts at NASA decided they LOVED Zero G, and it was time to get off the socialist tit, and buy their own Vomit Comet and start selling rides on it. Everything the Vomit Comet does in within the specs of planes, and why can't we do what Ron and Tom got to do? That was the idea.

      When they first got this harebrained scheme, I heard about it. It seems that when anyone gets a harebrained scheme, I'm CC'd on the memo. I loved nuts, I'm for nuts, I am nuts. They all get in touch with me. I told them I thought it was a great idea (and you know how much that means), and I wrote them email, gave them tickets to our show, and went to dinner with them a couple times.

      They were going to get approval to fly a 727 very fast right straight down very soon. It was going to be a matter of months. That was 6 years ago. But, I kept talking to them, and whenever they gave me a date, I said I would be there, until it fell through again. Us free-market guys are always fighting the man.

      Well, they finally fought the law and kinda sorta won. They at least won enough for me to fly. I finally did it. After 6 years of grueling cheerleading, I got be be weightless. Only about

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  8. Slashdot Public Service Announcement by tgd · · Score: 4, Informative

    To avoid the possibility any other responders to this thread demonstrate a critical need to be cracked with a cluestick:

    What a person experiences in this case is *identical* to what you'd experience in Space.

    You don't suddenly leave the Earths gravitational field in orbit and start floating around. You just fall in a parabola that happens to miss the ground.

    One would think this was common knowledge, but from the posts on here, its clearly not.

    1. Re:Slashdot Public Service Announcement by sleepingsquirrel · · Score: 4, Informative
      It always seemed to me that a thrown ball, disregarding friction from the air, should describe an elliptic section corresponding to its orbit around the Earth's center of gravity, not the parabola that so often got mentioned.
      The parabola arises from a simplifying assumtion that the gravity producing body is infinite in all directions (which would result in a uniform gravitational field everywhere). Stated another way, assume the highest point the projectile reaches is small compared to the radius of the earth. Kind of like the assumption that accelleration due to gravity for earth is 9.8m/s^2 (which is true as long as you are sufficiently close to the surface). Take a baseball (mass=m1) and the earth (mass=m2). The magnitude of the force on the baseball is...
      F=G*m1*m2/r^2
      where
      G=universal gravitational constant (6.67E-11 Nm)
      r=distance between center of masses of m1 and m2 (radius of earth is ~6400km)
      The accelleration of m1 due to m2 is...
      F=m*a
      m1*a=G*m1*m2/r^2
      a=G*m2/r^2
      So if you throw the baseball 10 meters straight up, the gravitational field at the top of the arc will be about 3 ten thousandths of a percent less [compare (6400000)^2 with (6400000+10)^2]. That's a small error, so usually we ignore it. You might also be interested to know that a parabola is merely a degenerate ellipse with one of the foci at infinity. See also about conic sections.
  9. Re:*Ahem* by artemis67 · · Score: 2, Informative

    Or just go to Carowinds and ride the Drop Zone ride, which drops 16 stories, straight down.

    Total cost = $33 admission

    Keep the other $2,967 in your pocket.

  10. They were... by morzel · · Score: 3, Informative
    The appropriately dubbed 'The Uranus Experiment' was filmed on location (i.e.: riding the vomit comet).

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  11. Re:*Ahem* by Performer+Guy · · Score: 3, Informative

    You have a profoundly flawed understanding of physics. The only difference falling in a plane and falling in an orbiting spacecraft is the air friction. The orbiting spacecraft misses the Earth thanks to it's velocity. The aircraft in this case counterracts the forces on air friction *nothing else*. So you're as weightless as you would be in space, and in fact it is *exactly* like an orbit in a physical sense when you're inside the plane.

  12. Re:Odd diagram... by Professr3 · · Score: 2, Informative

    You'd get the same thing if they dropped you out of the plane when it was still climbing almost vertically. When the plane levels off, you'll still be going up in the air while the plane starts going down. That shifts the start of freefall to a little BEFORE it starts falling.

  13. Porn in 0-G by Anonymous Coward · · Score: 1, Informative

    For your information, it has been *already* done:
    - The Uranus Experiment
    - The Uranus Experiment 2
    - The Uranus Experiment 3

    BTW, those of us who have been lucky enough to have been in a parabolic flight know how difficult should have been filming such movie...

    Legal Disclaimer: I am not responsible of any legal charges if you download such things from P2P networks.

  14. Most Apt. Nickname. Ever. by mcmonkey · · Score: 2, Informative

    Listen shrub,

    I'm in a plane with no windows. Some force is keeping my feet on the floor and giving me the sensation of weight. I take two balls out of my pockets. I drop them.

    If the balls fall straight down in parallel paths, I am undergoing constant acceleration.

    If the balls do not fall in parallel paths, but rather land closer together, I am feeling the effects of gravity and the two paths intersect at the center of gravity for the system.

    Yes, some theoretical gravity field with a center of gravity at an infinite distance will cause objects to fall in parallel paths. The real gravity field affecting the plane, the balls, and me is not such a field, and can be distinguished from constant acceleration.

    Actually, methods of determining an un-seen source of 'gravity' (under influence of planet, rotating space station, constant acceleration in a straight line) was in the first problem set on the first of class in freshman physics. See what you would of learned if you had gone to class?

  15. Porn has already charted that territory by asoap · · Score: 2, Informative
    They've already been there and done that. I would find a link to the proper video, but I'm currently at work. Look for a video called 'the uranus experiment 2'. It's about 3-4 years old now, but they have about 30sec - 1minute of zero-g 'footage'.

    What's funny is that they could only afford to the dive a couple of times, so they only have a little bit of footage. But there is other footage where they "simulate" zero-g with very tacky and hysterical porn special effects.

    It's not a very good video. Although it does have some killer 3d special effects, that appear to be done with 3ds r4.

    - Derek

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  16. Re:Odd diagram... by pclminion · · Score: 4, Informative
    The zero-G condition occurs when the aircraft is moving ballistically. Whether the plane is ascending or descending is irrelevant. All that matters is that it is moving in a parabolic trajectory consistent with the acceleration of gravity.

    The reason the occupants of the plane experience this as a zero-G condition is because they are in freefall. They are moving precisely as they would be moving if they were falling toward the earth without air resistance. You need a plane to accomplish this, because in reality you cannot neglect the air resistance.

    You can experience the same condition briefly, simply by jumping in the air. During the time you are in the air, you are in a weighless condition.

  17. You can't call it that by feyhunde · · Score: 2, Informative
    I was on a SOAR team, where Nasa allows university students to fly experiments on the KC-135. There is much research done on them, but much of it is sidelined to PR. The PR folks make most the decisions on the plane. They know lack of safety is not only bad for them and the plane, but for budget and PR. When FOD can kill an $80K+ engine, they make damn sure there are few chances for it to do so. That's why you can't bring your own tools anywhere on Elington field (same place W was "based" in Texas Air National Guard).

    When I went nearly half the experimenters got quite sick. The smart groups made the experiments automated and spend the time doing flying kicks and walking up walls. Or, of course, Vomiting. Nasa hates the name Vomit Comet, but everyone calls it that. A problem was the camera people would come up to you on the plane while you were frantically working to make your project work due to some bug you missed before hand. When they come you are suppose to smile and wave and say hi to folks at home that will get shown the video. This is rather bad for a serious project that has 10k+ invested in it for plane tickets and hotel rooms.

    For some great photos of flights try http://zerog.jsc.nasa.gov/2004SpringCollegeCampaig n/viewer.cgi

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  18. Re:Vomit Comet by feyhunde · · Score: 2, Informative

    Hmm, don't think there is that much office space near Ellington field. Mostly restricted government areas that you get shot at by National Guardsmen for taking photos of. The KC-135 is done anyway. Too old and time for a very expensive C check, so it is now time for a DC-9 to do the Job. The folks at Ellington are much happier, even if it is smaller than the 707, it has better engines and has much more ease of control.

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  19. Patented conversion of aircraft by SuperDry · · Score: 2, Informative

    I can't believe that nobody else has pointed out something mentioned at the end of the article: They are going to be using regular cargo aircraft that are temporarily reconfigured for the 0G flights, and have been awarded a patent for this idea.

  20. Already available in Sweden... by apanap · · Score: 3, Informative

    The Zero group has been offering 0-g flights in Kiruna, Sweden, using a special built russian air-plane since last year, and made their first "space-tourist"-flights this year in April (at least they were supposed to but I couldn't find a source actually confirming it with my 5 minutes of googling...). One of the people from there made a presentation at my university in December and said they charged ~$/4000 for it. They are also supposed to used special equipment and lighting inside the cabin to make the flight even more interesting than just having low gravity.

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