Month: September 2022

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

AN INGENIOUS APPLICATION of invisibility cloaking is to apply this technology to energy waves resulting from seismic earthquakes, and by positioning a giant diffraction grating or crystal structure around buildings or bridges, those waves may be diffracted or bent around the building, saving it from the force of the earthquake. View in LinkedIn

INVISIBLE BUILDINGS. "We’ve cloaked against radar, microwaves, acoustic waves, light waves, and more, but what about seismic waves? Scientists have now found a way to make buildings “invisible” to the destructive force of earthquakes." https://lnkd.in/eDGkPz8 View in LinkedIn

WAVE MANIPULATION. "Computations showed that seismic waves traveling toward a building, could be directed around the building, leaving the building unscathed, by using seismic metamaterials." https://lnkd.in/eiREs7m View in LinkedIn

WAVE MANIPULATION. "The very long wavelengths of earthquake waves would be shortened as they interact with the metamaterials; the waves would pass around the building so as to arrive in phase as the earthquake wave proceeded, as if the building was not there." https://lnkd.in/eiREs7m View in LinkedIn

BENDING WAVES. "In recent years, a number of groups have reported schemes, based on metamaterials made of properly tailored concentric rings, for cloaking objects from elastic bending waves propagating in thin plates." https://lnkd.in/edaQCe9 View in LinkedIn

METAMATERIALS AND WAVES. "Given the similarity between acoustic and seismic phenomena, it was natural to envision that larger-scale analogs of acoustic metamaterials, called seismic metamaterials, could open a new direction in the control of seismic waves and protection from earthquakes." https://lnkd.in/edaQCe9 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

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

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