While the fundamental principles of microwave (MW) attenuation in the atmosphere are understood, the effects of aerosols on MW weakening or expansion must be taken into account for planetary health.
Microwave (MW) attenuation is crucial in the development of communication networks and serves as a valuable instrument for meteorological and optical fields in radar and microwave imaging applications. Since most atmospheric constituents, except for large hydrometeors, are significantly smaller than MW wavelengths, data analysis usually employs traditional Rayleigh theory. Nevertheless, there have been anomalous observations that challenge this conventional approach.
Mass computations of aerosol loading, a crucial climate parameter, are feasible. Discrepancies between theoretical predictions and observations can often be explained by the charge that dust particles acquire through contact electrification during dust storms. Frequencies below 10 GHz typically allow for long-distance signal transmission, but the charge-induced resonances in particles can significantly amplify low-frequency microwave (MW) attenuation, potentially by more than tenfold, depending on their surface electric potential. Furthermore, electrically charged particles in the local atmosphere may serve as a tool for controlled MW attenuation, offering a defense against HAARP technologies.
Desert regions such as the Saharan Africa (Libya or the Sahara), Iraq, Syria, and Afghanistan are given special attention due to the frequent occurrence of dust storms where contact charging can result from particle collisions (Lacks & Sankaran, 2011). Contact electrification is a significant phenomenon in these desert dust storms and other particulate clouds (Pähtz, 2010), as the charge (negative or positive) that particles can carry is considerably larger than what was previously assumed (Baytekin, 2011).
Integrating particle surface charges into electromagnetic scattering theories could potentially address the limitations of current theories in explaining the anomalous absorption sometimes observed at low frequencies, and at higher frequencies too. The possibility of using charged-particle surface excitations for controlled microwave (MW) attenuation in the atmosphere raises the question of whether artificially dispersed particles, carrying electric charges within a localized atmospheric volume, can modify a specific frequency range through resonant attenuation.
HAARP is a research facility that uses a high-power transmitter to temporarily excite a limited area of the ionosphere for scientific study. It can also observe the physical processes that occur. HAARP (High-frequency Active Auroral Research Program), the scientific facility for studying the ionosphere, is located near Gakona, Alaska. MW attenuation can be controlled through charge-induced resonances in particles, which could have various applications, for example, in damping or controlled interruption of MW communication links through dispersing charged particles with tailored optical properties in a local atmosphere. Beyond security/defense applications HAARP believes this optical phenomenon can open the door to other applications.
Microwave radiation is a form of electromagnetic radiation. It is not limited to the emissions from kitchen microwave ovens but rather refers to a wide spectrum of radiation within the electromagnetic spectrum. The intensity of microwaves, similar to those in an oven, can affect the human body, which is composed of approximately 70% water. This can be problematic for body parts like the eyes and testicles, which lack sufficient blood flow to dissipate excess heat, potentially leading to blindness or sterilization.
To counteract the effects of microwaves, various shielding materials like aluminum, conductive foam, and rubber are used based on the specific application. Let's define microwaves and discuss the materials used for shielding.
While there are various techniques available for blocking microwave radiation, most of them involve utilizing a material that can block the wavelengths. So, what does this entail? The top materials for blocking microwaves include sheet metal, metal foam, or metal mesh. The metal used should be conductive or magnetic, such as copper and aluminum, among others. In the case of metal mesh, the apertures must be smaller than the wavelength.
A prime example is the mesh on microwave oven doors. Despite having holes, they are smaller than the microwaves, effectively blocking most of the radiation from escaping. Conductive metals absorb microwave radiation and transform it into heat. Interestingly, salt water also absorbs microwave radiation effectively, although it may not be practical for our purposes.
Faraday fabric, an electrically conductive material used for lining rooms and covering electrical appliances, is made from woven metal fibers. This fabric is easy to manipulate while maintaining a high level of conductivity. Similar to a Faraday cage, it forms a conductive shield around the microwave radiation source, absorbing and grounding the radiation. Its versatility allows for cutting and sewing just like any other fabric, making it a practical choice for various applications.
While it’s one thing to tackle microwave radiation coming from within your home, what can you do about radiation coming from outside? One of the few options available is EMF blocking paint.
EMF-blocking paint, which contains metal particles, forms a conductive layer that reduces some of the microwave radiation from outside entering your home. Although this paint is quite effective, it should not be your sole protective measure. It is advisable to apply this paint in your bedroom and any other rooms where you spend significant time. Typically, one coat per wall is sufficient, but be prepared for a substantial budget as costs can escalate. Designed as an undercoat, common aluminum-based paints like Rustoleum offer a less expensive basecoat option but provide only half the protection of the pricier options, necessitating a final color coat. Moreover, high-end shielding paints require grounding with a plate and strap to function properly.
Aluminum and conductive foam or rubber serve different purposes in stopping microwaves: aluminum reflects the electric part of the wave, while conductive foam or rubber absorbs the magnetic energy of the radiation. The choice between these materials depends on the desired level of effectiveness. In some cases, a combination of both reflection and absorption techniques is used for shielding, particularly when necessary for the application.
Microwaves, with their ability to penetrate walls and other materials, pose a number of problems for humans or sensitive electronics. Fortunately, there are many different types of microwave shielding materials available that can help protect against radiation.
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