We are now on Patreon! Click here to learn more about how you can help support the site.

Thursday, December 2, 2021
Contact    |    RSS icon Twitter icon Facebook icon  
You are viewing: Home > News > Science & Technology > News story
Welcome Guest ( Login or Register )  
Science & Technology

Scientists make tractor beam breakthrough

January 22, 2018 | Comment icon 7 comments



Objects can be levitated using 'tornadoes of sound'. Image Credit: University of Bristol
An acoustic tractor beam could make it possible to levitate large objects within the not-too-distant future.
Although the technology needed to levitate an object using sound waves has existed for years, lifting anything but the smallest of items using sound waves alone has long proven notoriously difficult.

Now though, engineers from the University of Bristol have finally found a way to levitate objects using an acoustic tractor beam that is larger than the wavelengths of sound being used by the device.

"Acoustic researchers had been frustrated by the size limit for years, so it's satisfying to find a way to overcome it," said study lead author Asier Marzo. "I think it opens the door to many new applications."
Such applications could include the manufacture of fragile products without having to physically touch them or the manipulation of surgical devices within a patient's body during an operation.

Crucially, it is also likely that the technology can be scaled up significantly over time.

"In the future, with more acoustic power it will be possible to hold even larger objects," said senior research associate Mihai Caleap. "This was only thought to be possible using lower pitches making the experiment audible and dangerous for humans."



Source: CNET.com | Comments (7)



Unexplained Mysteries is now on Patreon!

Click here to learn more about how you can help support the site and gain access to a range of perks including a subscriber badge, ad-free browsing, an exclusive weekly newsletter, sneak peaks of upcoming features and more.
24 / 25  
We are 96% of the way to our second Patreon subscriber target - thank you!
Recent comments on this story
Comment icon #1 Posted by seeder 4 years ago
THIS.......makes me feel a great many things.....let me explain: Years and years ago as a teen, when Id gotten into music...I noticed that when playing music loud, the plant in front of the speakers.....well its leaves nearest the speaker would move in time to the beats Years later when Id got online and started reading about antigravity nonsense, I remembered those plants twitching in time to the beats from the speaker...and so I TOO...many years ago...thought that could be developed into some sort of levitator But did nothing about..... If Id pursued that idea, who knows, I might be famou... [More]
Comment icon #2 Posted by Almighty Evan 4 years ago
Comment icon #3 Posted by Hawkin 4 years ago
That could have been Emit Brown (Doc) next invention and made a sequel out of that.
Comment icon #4 Posted by paperdyer 4 years ago
Being able to make something float is anti-grav as Seeder mentioned. A tractor beam drags something toward you or holds it in place so you can tow the object. Great discovery, though. Will it eventually make all the hover boards work?
Comment icon #5 Posted by UFOwatcher 4 years ago
"acoustic tractor beam" WHAT? I can't hear anything now...
Comment icon #6 Posted by Calibeliever 4 years ago
If they are able someday toscale it from a fraction of a gram to tens of kilos, I don't see why not. I'm curious what the power needswould be.
Comment icon #7 Posted by cerberusxp 4 years ago
Ralph Ring, Otis T. Carr and their co workers on a Government project levitated a basketball with a speaker in the 1950's. He remembered that he believed it happened at 32,000 cycles.


Please Login or Register to post a comment.


Recent news and articles