![]() ![]() This theory was verified by experiments conducted by Dr. ![]() The theoretical calculations showed that the collective motion of these air “meta-atoms” indeed produces the shear force, which gives rise to the transverse sound with spin-orbit interactions inside this metamaterial. The metamaterial is hard enough so that only the air inside can vibrate and support sound propagation. Air is confined inside these mutually connected resonators, forming the “meta-atoms”. He ingeniously designed a type of artificial material called “micropolar metamaterial” to implement this idea, which appears like a complex network of resonators. ![]() Conception and realization of “micropolar metamaterial” The collective motion of these air “meta-atoms” can give rise to a transverse sound on the macroscopic scale. volumetric air confined in small resonators with size much smaller than the wavelength. Then he conceived the idea that synthetic shear force may arise if the air is discretized into “meta-atoms,” i.e. He had been exploring if it is possible to realize transverse sound, which requires shear force. *This speed is exact, as the length of a meter is defined as the distance a beam of light traverses in 1/299,792,458 of a second.The absence of shear force in the air, or fluids, is the reason why sound is a longitudinal wave, Dr. So, it is possible for objects to move faster than light in media other than a vacuum. One can think of this radiation as the light equivalent of a "sonic boom," that one hears when objects move faster than sound. The result is a pervasive glow called "Cherenkov radiation," after Soviet radiation physicist Pavel Cherenkov who first observed this glow in 1934. ![]() As this particle is moving faster than light (in water), it will generate copious light photons that are in phase with each other. This charged particle will excite the water molecules, causing them to emit a bluish light. These particles will not, of course, exceed the actual speed of light (c). Some charged particles can move faster than 0.75c in water and therefore travel faster than light. However, light travels at about 0.75c (75% light speed) through water. As a vacuum is devoid of such particles, light can attain its maximum velocity, which, as far as we know, cannot be surpassed. The presence of particles impedes the photons through scattering. However, 'c' refers to the speed of light propagating through a vacuum, which equals 299,792,458 metres per second.* Light slows down when it passes through other media, such as air or water. It is true, at least according to Einstein's Theory of Special Relativity, that light (denoted by 'c,' because it is a constant in all inertial reference frames) is the highest attainable velocity. ![]()
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