Clipped from: "Sound Bullets" to Zap Off Tumors?
"Sound Bullets" to Zap Off Tumors?
A prototype acoustic lens for generating "sound bullets."
A new machine inspired by a common office toy could one day allow doctors to zap cancerous tumors using "sound bullets," scientists say.
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The design is based on the Newton's cradle, which features several identically sized metal balls suspended so that the balls barely touch each other.Due to Newton's laws of motion, when an end ball is pulled back and released, the ball at the other end swings outward with the same speed, even though none of the middle balls move.
Clipped from: Newton's cradle - Wikipedia, the free encyclopedia
Newton's cradle, named after Sir Isaac Newton, is a device that demonstrates conservation of momentum and energy. The device is also known as an executive ball clicker, newton's balls or balance balls.
Clipped from: Observations: Acoustic lens generates bullets of sound that may lead to sonic scalpels
Acoustic lens generates bullets of sound that may lead to sonic scalpels
Sound bullets could treat cancers and replace ultrasound (w/ Video)
The new acoustic lens is made of a metamaterial and uses the Newton’s cradle principle, which is familiar to many people from a toy with identical metal balls suspended on strings, designed to demonstrate the conservation of energy. When the ball at one end is pulled out and released, the ball at the other end swings out at the same speed. The metamaterial comprises 21 parallel chains, each containing 21 stainless steel spheres, but instead of channeling motion, the balls channel sound waves, which are converted to a shock wave called a “solitary wave”. The energy leaving the lens does not bounce back through the chains because of the length of the chains, and instead is focused on a spot a few centimeters in front of it.
Clipped from: Daraio Home Page
CHIARA DARAIO
California Institute of Technology, Aeronautics and Applied Physics
Daraio’s lab interests reside at the interface of materials science, condensed matter physics, and solid mechanics, particularly in the design, development, and testing of multi-scale metamaterials; phononic crystals; responsive soft matter; tunable acoustics; highly nonlinear solitary waves; mechanical and electronic properties of nano and biomaterials; advanced characterization of materials (high resolution TEM, in-situ analysis, FIB, AFM); synthesis, fabrication and assembly of nanomaterials and composite nanostructures …more…
Ongoing Projects:
Generation and control of sound bullets with a nonlinear acoustic lens
Alessandro Spadonia, Chiara DaraiobSources:
- "Sound Bullets" to Zap Off Tumors?
- Newton's cradle - Wikipedia, the free encyclopedia
- Observations: Acoustic lens generates bullets of sound that may lead to sonic scalpels
- Sound bullets could treat cancers and replace ultrasound (w/ Video)
- Daraio Home Page
- Daraio Research Page
- Generation and control of sound bullets with a nonlinear acoustic lens — PNAS
- “Sound Bullets” Could Target Tumors, Scan the Body, and… Create Weapons? | 80beats | Discover Magazine
- Sound Bullets Inspired By Newton's Cradle Could Sink Subs, Pummel Underground Bunkers, Destroy Tumors | Popular Science
- 'Sound Bullets' Could Blast Subs, Cancer : Discovery News
- Chiara Daraio | JetLib News
- Scientists create ’sound bullets’ that could destroy cancer, submarines - SmartPlanet
- Scientists Close in on "Sound Bullets" - CBS News
- Sound bullets latest weapon against cancer - Telegraph
- Chiara Daraio: From Newton's Cradle to New Materials - SoCal Science Cafe (Los Angeles, CA) - Meetup.com
- Sound Bullets Generated by Metamaterials for Killing Cancer Tumors or Submarines
- Al Fin: Sonic Disruptor Technology Comes to Earth
- Deadly Sound Bullets Spring From Newton's Cradle - Sound bullets - Gizmodo
