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Those Amazing Antigravity Machines?

surfimp writes "Wired is running an interesting article about 'lifters', hovering UFO-looking vehicles that have no moving parts, no onboard power supply, and are capable of levitating simply through the application of high amounts of electrical current. Enthusiasts claim their vehicles are examples of a nascent antigravity technology, while more traditional scientists - including some funded by NASA - view them as nothing more than contraptions harnessing ionic winds."

6 of 488 comments (clear)

  1. Further reading by Sir_Dill · · Score: 5, Interesting

    check out americanantigravity.com

    This is a site run by this guy I used to work with...pretty interesting stuff.

    I think it messed with his head a little though.

  2. anyone worked out the amount of power/lb? by shoestring · · Score: 4, Interesting

    Anyone look at the power/pound?
    Let's see.. 27000 V, 20 microamp, for 3 millipound.. think that works out to something like .54 Watt. .54 W/ .003 lb = 180 W/lb..
    Anyone know how this compares to say
    "normal" engines?
    Seems to be a really good battery, unless you have a tether (or beamed power).

  3. Complete bogus by fpp · · Score: 5, Interesting

    James Randi, the famous skeptic, has this to say about this subject (http://www.randi.org/jr/060702.html):

    "Go take a look at http://www.americanantigravity.com/index.html and see very interesting videos of what the supporters seem to believe is a breakthrough in science. If this device is "antigravity," then a pogo stick and a crow are both antigravity items, as well.

    I saw a similar demo at the University of Toronto back in 1946. That demo used a flat circular coil of wire; I believe this is the same thing, but a triangular form leads one away from the "induction" conclusion. It's a matter of high-voltage electrical fields generated by something that you don't see in the videos; there's always a source of high voltage present, a CRT (computer monitor or TV receiver) or a HV power supply, just out of camera view. What's also not obvious here is that the triangular frame -- which weighs only a few grams -- is tethered down by very fine invisible threads, a fact which when known, makes the apparent "maneuvering" appearance less mysterious by far."

  4. Re:Not Antigravity by grumpygrodyguy · · Score: 5, Interesting

    Levitation lives!

    And yes, this one does work in a vacuum.

    --
    The government has a defect: it's potentially democratic. Corporations have no defect: they're pure tyrannies. -Chomsky
  5. These things are so cool! by be-fan · · Score: 4, Interesting

    When my friend first showed me the site, I thought it was a hoax. He bitched about it enough that we decided to build some at school. We opened up some monitors to use as 25,000 volt power supplies, and wired one up using very thin wire and balsa wood. The damn thing flew alright. Power-to-weight ratio sucked, though. The thing was hooked up to a monitor (don't know much it was actually dissipating) but could only lift about its body weight (2 or 3 grams for our model). The nifty thing about it is that while we were working on it, we left it in the robotics lab labeled "Anti-gravity machine, do not touch!"

    PS> If you try this at home, remember, high voltages arc very easily! One of the times we tried it, there was a class in the lab at the time. One guy was so fascinated that the electric charge in the wires made the hair on his arm stand on end that he got a little too close :)

    --
    A deep unwavering belief is a sure sign you're missing something...
  6. Re:several small problems by fenix+down · · Score: 5, Interesting

    The lack of control thing is really just because nobody bothers to try. It's like building a helicopter rotor and engine and just turning it on. It'll flip all the fuck over unless you tie it down or something. I'm guessing if you put little stablizer lifters on the sides of your big lifter you get lighting going in between them or other bad things, but if you did something like that, I can't see this being any more unstable than any other kind of propulsion.

    BTW, if the Nebechunezzar runs on lifters, why does it need an EMP? Anything more conductive than a petrified Carrie-Anne Moss ought to be attracting ridiculous arcs by the time it gets within tense music distance, no?