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SUSPENDED CHEMISTRY. "These giant acoustic traps could lead to new technologies and devices for a variety of applications in chemistry, materials, as well as biosciences...For example, by creating this three-dimensional bottle-like acoustic trap, we could use it as a micro-chemical reactor and manipulation of biological trafficking devices." https://lnkd.in/eN74kab View in LinkedIn

DARPA, of course, is interesting in acoustic cloaking for military applications. "This effort will use directed ultrasound technology to enable the capability to significantly reduce sound emissions from large scale tactical military hardware." https://lnkd.in/bZG9Gkr View in LinkedIn

SECOND ACOUSTICAL CLOAK (2014). Berkeley's acoustic bottle. "“We can also use an acoustic bottle as a cloaking device, re-routing sound waves around an object and then recovering them in their original form, making the object invisible to sonar detection." https://lnkd.in/eN74kab View in LinkedIn

FIRST ACOUSTICAL CLOAK (2014). "Using little more than a few perforated sheets of plastic and a staggering amount of number crunching, Duke engineers have demonstrated the world’s first three-dimensional acoustic cloak. The new device reroutes sound waves to create the impression that both the cloak and anything beneath it are not there." https://lnkd.in/bPE7nGe View in LinkedIn

SOUND CLOAKING. "The acoustic cloaking device works in all three dimensions, no matter which direction the sound is coming from or where the observer is located, and holds potential for future applications such as sonar avoidance and architectural acoustics." https://lnkd.in/bPE7nGe View in LinkedIn

IT'S ALL ABOUT WAVES. "Sound waves move much like light waves. They travel on a straight path but this path – through reflection, diffraction or refraction – can be bent. This is the basis for ultrasound medical imaging and non-destructive testing of materials." https://lnkd.in/eN74kab View in LinkedIn

FRENCH SCIENTISTS "carried out the largest-scale test to date of seismic metamaterials. The reported experimental results are encouraging: an artificial structure built around a target can be used to deflect incoming acoustic waves at a frequency relevant to earthquake protection. This preliminary success in the laboratory could one day translate into a way of mitigating the destructive effects of earthquakes." https://lnkd.in/edaQCe9 View in LinkedIn

FIRST TESTS OF SEISMIC CLOAKING. "An early prototype of such a cloak has been tested experimentally by researchers in France. In principle, the concept could be extended to create protective barriers that divert earthquake energy away from sensitive facilities such as nuclear power plants." https://lnkd.in/e_Auavs View in LinkedIn

SEISMIC CLOAKING. "Vulnerable buildings could someday be shielded from damaging earthquakes by surrounding them with "seismic invisibility cloaks". https://lnkd.in/e_Auavs View in LinkedIn

GIANT PHOTONIC CRYSTALS. "Building on the results obtained in the field of phononic crystals and acoustic metamaterials, theorists have proposed artificial structures, based on periodic arrays of boreholes, that exhibit band gaps at frequencies characteristic of seismic waves." https://lnkd.in/edaQCe9 View in LinkedIn