What is quantum electrodynamics (QED) and how does it describe the interaction of light and matter?

Aug 4, 2016 ... The strongest magnetic fields at power frequency are normally found very close to motors and other electrical appliances, as well as in specialized equipment. Feb 15, 2014 ... The mean EMF level (characterized here by magnetic flux density) measured were 0.9 mG (n = 11) at the base of the wind turbines and dropped off ... The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes. Recent studies with human volunteers exposed to 60-Hz electric and magnetic fields with intensities comparable with those of high-voltage power lines have shown ... Feb 7, 2024 ... Recently, the monitoring of the radiofrequency electromagnetic field (RF-EMF) exposure induced by cellular networks has received a great ... Jul 14, 2021 ... The physicists calculated the distribution of electrons within the sun's electric field, a feat made possible by the fact that the Parker Solar ... The heart is the most powerful source of electromagnetic energy in the human body, producing the largest rhythmic electromagnetic field of any of the body's ... Electromagnetic fields (EMF) are a combination of electric and magnetic fields. Electric fields come from electricity, such as when a kitchen appliance is ... Aug 31, 2017 ... Daily activities leading to the highest exposure were: sleeping, electric ironing, and cooking with electric appliances. The highest ... Jan 3, 2023 ... We are exposed to electromagnetic fields and waves on a daily basis: from sunlight, during X-ray examinations, when standing near electrical cables or while ...