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Aperture antennas are microwave transceivers fashioned into disks, dishes, and rectangular arrays, as seen on cell phone towers. The antenna radiation pattern appears as a torus or horn around the beam axis. Others can include helical, conical, parabolic and more; dozens of other antenna types an...
Because they are radioactive, radon and radon progeny emit alpha particles, a high-energy radiation that damages DNA in human cells and causes lung cancer. When radon is inhaled, particles become lodged in the lungs where they continue to emit alpha particles. ...
To expose to radiation of any kind, especially ionizing radiation; as, to sterilize food by irradiating it with gamma rays; one can cause mutations in bacteria by irradiating them with ultraviolet light. Radiate (ecology, intransitive) to spread into new habitats, migrate. Irradiate To emit rays...
In many countries, humans are protected from harmful RF EMF exposure by safety standards that are based on guidelines by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). The ICNIRP guidelines are based on knowledge of how RF EMF affects the human body, however, there ...
Radio waves are a type of electromagnetic radiation best-known for their use in communication technologies, such as television, mobile phones and radios. These devices receive radio waves and convert them to mechanical vibrations in the speaker to create sound waves. ...
Radio waves are a type of electromagnetic radiation that can be emitted by all kinds of devices found in most homes and offices, including smartphones, dumb phones, Bluetooth keyboards and mice, smart meters, and more. In fact, all objects that are warm emit some radio waves, including the...
Infrared sensorsInfrared sensors work by measuring the heat emitted in their area and can detect or emit infrared radiation. Optical sensorsOptical sensors are common in smartphones and self-driving automobiles, converting light rays into digital signals. ...
What type of waves do cell phones emit and how does it affect us? What route should be used to take the temperature? Why? What does Rf, (or relative to front) mean? (a) What is a gap junction? (b) What determines whether the gap junction channel will open or close? In what way...
Question: What can a Doppler radar detect? Radar: Radar is a sensor system that not only detects but also recognizes objects from a significant distance. The radar operation includes the emission of electromagnetic energy in the form of a beam and detecting the wave getting reflected after it ...