What is Digg?66 Comments
- mynameistim, on 10/12/2007, -2/+93Yup. I agree. There's nothing like an ultrasonic cacophony blasting at your ***** to make the day go by quick!
- ABadInAlbany, on 10/12/2007, -0/+44they said levitate, not anally penetrate.
- mattsparkes, on 10/12/2007, -1/+39I want one at my desk instead of a chair.
- sockpuppets, on 10/12/2007, -3/+27Uplifting sounds? Somewhere in California Richard Gere is putting on an Enigma CD.
- cyberwiz01, on 10/12/2007, -2/+15Hoverboard!!!
- inactive, on 10/12/2007, -2/+14you wanna hear the most annoying sound in the world ?
- inactive, on 10/12/2007, -1/+12"Yup. I agree. There's nothing like an ultrasonic cacophony blasting at your ***** to make the day go by quick!"
Keeps you regular as clockwork! - fakkedap, on 10/12/2007, -0/+10Won't be long before pigs can fly.
- KayinNasaki, on 10/12/2007, -2/+11... I... I think you missed the joke. :(
- inactive, on 10/12/2007, -0/+916 Tesla!
I wonder if a magnetic field that strong messes with the nervous system? - Neem, on 10/12/2007, -0/+9Yeah 1SupermanFan you don't know what you are talking about ...
Gravity and electromagnetism are two completely different fundamental forces of nature. Meaning that a magnetic field has nothing to do with he effect of gravity on a body - SaintFatMan, on 10/12/2007, -1/+8I could be wrong, but i swear I've seen this done with bugs and small rodents but using a huge electromagnet.
- trghpy, on 10/12/2007, -2/+7Maybe someone who paid attention in physics could can correct me...
Moving an elevator up using sound would be useful for the first tenth of an inch.
But to get the elevator up 40 to the 4Th floor would require 80 foot sound waves at an ungodly decibel level that would make the space shuttle sound like a whisper - Neem, on 10/12/2007, -0/+5Another experiment demonstrating that if you build a massive, bulky apparatus to concentrate great amounts of energy on a very small space very carefully, cool thing happen ....
The challenge to these 30+ year old technologies is not make it happen for the sake of amusement, but to make the machine that it happen small enough to make them useful. - nofxjunkee, on 10/12/2007, -0/+5if you stop the sound waves then what keeps the object levitating?
- EyeLike, on 10/12/2007, -3/+9A mute button is a "must-have" for this machine
.. other wise it rocks, that machine would make a cool elevator(if possible) - Leathersoup, on 10/12/2007, -0/+5Eep.. for a second I thought you guys said Ultrasonic Colonoscopy... well it might end up doing something similar.
- Firemeboy, on 10/12/2007, -7/+12That's nothing. We used to do the same thing with gophers and a bit of surgical tubing.
- udontsay, on 10/12/2007, -0/+4I wonder if it could be adapted to fake gravity.
If so it could definitely be use to make space exploration more comfortable. - DoubtingThomas, on 10/12/2007, -2/+6"The ant and ladybug appeared fine after 30 minutes of levitation, although the fish did not fare as well, due to the inadequate water supply, the scientists report."
Chinese Scientist 1: So what you are saying is that fish need water to survive?!?!
Chinese Scientist 2: Indeed!
Chinese Scientist 1: This is HUGE!!! Make sure you mention my name when you do that interview with LiveScience.com. - slomotion, on 10/12/2007, -0/+3Water molecules are diamagnetic. This means that in the presence of a (strong) magnetic field, the atoms in water can be polarized to point in the direction opposite the B field. Since animals (and humans) are made up of mostly water, they can be levitated using a strong magnetic field. The High Field Magnetic Lab at the University of Nijmegen in the Netherlands has some funny images and movies on their site of this:
http://www.hfml.ru.nl/pics/Movies/frog.mpg
edit: whoops I got beat. sorry - Jolls, on 10/12/2007, -0/+3correct
http://www.hfml.ru.nl/froglev.html
http://www.hfml.ru.nl/levitate.html - mortigon, on 10/12/2007, -0/+3Why would evolution prepare us for something our planet doesn't experience...
- Methodius, on 10/12/2007, -0/+3The primary issue here, as far as I can see, is that in theory, the only objects that can be levitated are those shorter in length than the wavelength of the sound being used. So, for objects of a certain size, the only efficient means of levitation would require the noise be in our hearing range. This is pretty neat, but I'm still of the opinion that magnetics is our best bet for levitation.
- ZetaEta, on 10/12/2007, -0/+2@Neem: Does it?
http://www.newscientist.com/channel/fundamentals/mg18925331.200.html - mijoja, on 10/12/2007, -0/+2actually i believe what they did with the frog was suspend it in a magnetic field, and since frogs are mostly water and water is diamagnetic it floated. It was a very powerful magnetic field though...
someone below posted a link about it - zarex, on 10/12/2007, -0/+220mm waves are about 18kHz, and for that kind of force, they're going to be VERY LOUD. Definitely not something you I'd want to be anywhere near...
And, notably absent from the article, is whether the animals' hearing was tested. I suspect that the animals' hearing was damaged badly. - Skullpop, on 10/12/2007, -2/+4"The levitated ant tried crawling in the air and struggled to escape by rapidly flexing its legs, although it generally failed because its feet find little purchase in the air."
..Er, I'm sure that 'generally' things need ground to walk. - inactive, on 10/12/2007, -0/+2OK, can someone please explain to me how having standing waves of ultrasonic sound can levitate anything?
Where does the force needed to counteract gravity come from? It doesn't make sense to me, especially as the insects were smaller than half a wavelength...
EDIT: Oh yeah, for the fish... It might not have died from dehydration/suffocation. Fish are extremely sensitive to pressure changes, far, far, more so than us mammals, on account of their sideline system. Powerful sounds will knock fish unconscious, or even kill. - inactive, on 10/12/2007, -0/+1I still don't see how you get any force at all from a standing wave? The sum motion of the air is zero...
- phenolholic, on 10/12/2007, -0/+1acoustics. sound/acoustic is the result of vibrations in the air. these vibrations are so energeti/high-frequencied that, allthough inaudible to humans, may be cruel to the point of destruction to the animals. the motive of lifting living animals is stupid, the question was "can living creatures be lifted in the levitating acoustic field," ofcourse they can, just like inanimate objects. the only constrain here is mass. as long as the mass is within an acceptable range (not too light to cause it to propelled upwards and not too heavy to cause it to sink), levitation should occur. exposing live animals to energetic sound waves that causes them to levitate, that's just cruel.
- rabidg00se, on 10/12/2007, -0/+1As I understand it, sound waves are made up of compressed and rarefied air. If the animals are smaller or equal to half a wavelength of the standing wave, and the amplitude(or whatever gives sound waves their energy) is high enough, then the compressed air will work as a sort of platform.
I could be completely wrong about that, but it seems logical enough to me. - Tainek, on 10/12/2007, -2/+3You assume that the sounds will be audiable for Humans, unlikely, but i feel sorry for dogs ect
- tidu, on 10/12/2007, -1/+2That intro that said "Stupid Videos" fit perfectly.
- MisterKen, on 10/12/2007, -0/+1It's all fun and games until PETA arrives.
- bitcloud, on 10/12/2007, -0/+1I've uploaded those videos I mentioned here:
I've had these on my computer for more than 5 years I'd say... It may have even been 98 when I got them, and I don't know what levitation method was used, or how old they actually were:
water:
http://www.youtube.com/watch?v=3W4QfYU2_Xo
frog:
http://www.youtube.com/watch?v=tbV78LrRRFY
strawberry:
http://www.youtube.com/watch?v=jmokINeCdQI
grasshopper:
http://www.youtube.com/watch?v=Pu-XKP7SEAM
(the last two are uploaded, but youtube is still thinking about making them available perhaps in 5 minutes or so...)
discuss... - Spikito, on 10/12/2007, -6/+7@ Eyelike a mute button? this thing works off of sound waves, muting it might have some adverse affects on the performance
- rabidg00se, on 10/12/2007, -0/+1@mortigon
I'm pretty sure it was a joke. I found it to be pretty funny, at least. In an 'amphibious overlord' kind of way. - ZetaEta, on 10/12/2007, -0/+1Yeah. Weapons are easy. New motors for our vehicles, on the other hand...
- ZetaEta, on 10/12/2007, -0/+1If you were inside a pipe organ's largest pipe (which generates a rather large standing wave when air is blown in) you would feel the pressure changes that cause said pipe to resonate. Net motion over a period of time is not the same as momentary change in pressure.
- Neem, on 10/12/2007, -0/+1@ZetaEta
That theory seems to be a bit "out-there", however ... if the same description of the universe can predict particle masses so accurately, it cant be completely loony right ? I would hope so.
We are due for a good breakthrough in physics, not someone publishing a 30 page paper glorifying themselves with a 5 paragraph description towards the end on how they tied 2 of the 4500 loose ends on super string theory... Every time I read something like that it reminds me of Borat for some reason. - ellisgl, on 10/12/2007, -0/+1OK - so they are using sound - which is nothing more than air pressure. They been doing that with humans for a while..
I've seen where they have used electromagnets to levitate small objects like strawberries. - trghpy, on 10/12/2007, -1/+2Sorry dood...
Levitate != Fly - brotherfranciz, on 10/12/2007, -0/+1"I want one at my desk instead of a chair."
hehe... but if you watch the video, you'd notice that the levitated objects start spinning uncontrollably... so you'd get annoyed by the sound AND feel dizzy... - inactive, on 10/12/2007, -0/+1doesn't that amount to animal torture?
objection! - madhaha, on 10/12/2007, -0/+1I beg to differ. There have been nuclear powered cars and the Orion Drive is still the most efficient method of propulsion we have devised. Making these technologies Safe and then getting past the politicial problems (do you really want to hand everyone some fissionable materials to "power their car"?) is a whole different kettle of fish.
- KayinNasaki, on 10/12/2007, -1/+1I don't think they meant consumer containers but more commercial or scientific containers.
- ZetaEta, on 10/12/2007, -1/+1Of course, fish do fine in microgravity and atmosphere - they just need 100% humidity, since their bodies don't retain water.
- bitcloud, on 10/12/2007, -1/+1They report this as "now levitated" (as in news)
I've had videos of this type of work for 5 years or more...
Whoever genuinely forged this research is really pissed right now that they were written off by mainstream press when they actually discovered the mechanisms to achieve this years ago... (edit: & I'm not talking about acoustic levitation as mentioned at the end of the article) - fetiche, on 10/12/2007, -0/+0if i was enclosed within a proportionally small plastic cube with sound vibrations strong enough to levitate my body from the ground, i'm sure my ear drums would explode.
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