Latest topics
» Cult Alert - Sourcetruth Enterprises Inc. Continues To Expand
Scientists created an acoustic tractor beam EmptyToday at 12:32 pm by RamblerNash

» UPDATES - China Wuhan Coronavirus - 1-24-2020
Scientists created an acoustic tractor beam EmptyToday at 12:21 pm by PurpleSkyz

» 10 Statues Found By Deep Sea Divers!
Scientists created an acoustic tractor beam EmptyToday at 10:35 am by PurpleSkyz

» UFO News ~ 5 Observable Characteristics of UFOs plus MORE
Scientists created an acoustic tractor beam EmptyToday at 10:32 am by PurpleSkyz

» #QTard Drama Theater - The PLAN: 'SYSTEMIC DESTRUCTION of OLD GUARD'? plus more
Scientists created an acoustic tractor beam EmptyToday at 10:15 am by PurpleSkyz

» The Mysterious Aztlán Stones Describe The Extraterrestrial Visit Thousands of Years Ago
Scientists created an acoustic tractor beam EmptyToday at 10:12 am by PurpleSkyz

» Sherman Pass Webcam Seems to Have Taken a Picture of ‘Bigfoot’
Scientists created an acoustic tractor beam EmptyToday at 9:58 am by PurpleSkyz

» NIBIRU News ~ Black Star Report plus MORE
Scientists created an acoustic tractor beam EmptyToday at 9:51 am by PurpleSkyz

» Body Language: Davos 2020 Trump & Iraqi President Barham Salih
Scientists created an acoustic tractor beam EmptyToday at 9:48 am by PurpleSkyz

» Fear and Loathing in Virginia
Scientists created an acoustic tractor beam EmptyToday at 9:45 am by PurpleSkyz

» PIE NET ZERO
Scientists created an acoustic tractor beam EmptyToday at 9:43 am by PurpleSkyz

» Cue Twitter Storm... Fox Was Right About Woke - David Icke
Scientists created an acoustic tractor beam EmptyToday at 9:41 am by PurpleSkyz

» "I was a climate alarmist. I believed the narrative" - Som Wardner Talks To Gareth Icke
Scientists created an acoustic tractor beam EmptyToday at 9:40 am by PurpleSkyz

» Scam Alert! The Sourcetruth Matrix Cult Video
Scientists created an acoustic tractor beam EmptyYesterday at 7:44 pm by PurpleSkyz

» WHY ARE SO MANY NEW CAGERS PUSHING C60-ESS60?? Alfred Webre, Patty Greer & Chris Burress
Scientists created an acoustic tractor beam EmptyYesterday at 7:11 pm by PurpleSkyz

» Incan megalithic stones
Scientists created an acoustic tractor beam EmptyYesterday at 7:06 pm by PurpleSkyz

» POOPness for JAN 22: Midweek ZAP CRAPKOWSKI GHOULISH BARBER OF CALGARY
Scientists created an acoustic tractor beam EmptyYesterday at 5:51 pm by PurpleSkyz

» Strange black smoke ring filmed over Pakistan
Scientists created an acoustic tractor beam EmptyYesterday at 5:34 pm by PurpleSkyz

» UFO News ~ UFO spheres,Lincoln park,CHICAGO plus MORE
Scientists created an acoustic tractor beam EmptyYesterday at 3:07 pm by PurpleSkyz

» IBM unveil ‘World Smallest Computer’ which is smaller than a grain of salt
Scientists created an acoustic tractor beam EmptyYesterday at 11:58 am by PurpleSkyz






CURRENT MOON




You are not connected. Please login or register

OUT OF MIND » NEW EARTH AWARENESS » SCIENCE & TECHNOLOGY » Scientists created an acoustic tractor beam

Scientists created an acoustic tractor beam

Go down  Message [Page 1 of 1]

1Scientists created an acoustic tractor beam Empty Scientists created an acoustic tractor beam on Fri Feb 09, 2018 7:15 pm

PurpleSkyz

PurpleSkyz
Admin
Scientists created an acoustic tractor beam


Scientists created an acoustic tractor beam 20180207-Scientists-created-an-acoustic-tractor-beam-Featured2
It is remarkable what can be achieved with acoustic waves. During the last two decades, scientists have demonstrated photon creation with the sonoluminescence effect, acoustic levitation and sound hologram . Acoustic vortices are another interesting effect. They have been extensively studied for their ability to trap particles and recently a team achieved the stable three-dimensional trapping of Rayleigh particles (i.e., particle with a radius smaller than the wavelength a ≪ λ).
These acoustic vortices are wave fields with a screw dislocation in the phasewave front and an amplitude null on the axis pin. These helical wavefronts can be generated using various methods among which stands out the use of phased array systems because they allow to electronically control the acoustic beam by means of the application of a given delay law to the array elements.
Acoustic researchers had been frustrated by the size limit for years, so it’s satisfying to find a way to overcome it. I think it opens the door to many new applications.
Scientists created an acoustic tractor beam 20180207-Scientists-created-an-acoustic-tractor-beam-01-400x400
Recently, a team from the University of Bristol succeeded in trapping small particles in a three-dimensional acoustics traps. Basically, they created the basis for a tractor beam. They demonstrated stable trapping inside acoustic vortices by generating sequences of short-pulsed vortices of equal helicity but opposite chirality. This produces a “virtual vortex” with an orbital angular momentum that can be tuned independently of the trapping force.



https://youtu.be/nFJpEsKATXE

The first results were obtained for airborne acoustic vortices, but simulations suggest that the instability due to accumulation of orbital momentum also affects vortices in other media, such as water or blood. It is possible that virtual vortices will allow novel applications in particle centrifugation and manipulation of arbitrarily sized particles. Therefore, the introduction of virtual vortices will extend the current uses of acoustic levitation to allow larger objects to be manipulated and their rotation controlled.
Acoustic tractor beams have huge potential in many applications. I’m particularly excited by the idea of contactless production lines where delicate objects are assembled without touching them.
Bruce Drinkwater, Professor of Ultrasonics from the Department of Mechanical Engineering
Continue reading at: https://phys.org/news/2018-01-world-powerful-acoustic-tractor-pave.html

Thanks to: https://resonance.is



  

Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum