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Origin of electromagnetic radiation
Words nearby electromagnetic radiation
Example sentences from the Web for electromagnetic radiation
You have no way to touch or feel or even suspect the existence of electromagnetic radiation, but that is where the voices are coming from.Your Brain Makes You a Different Person Every Day - Issue 91: The Amazing Brain|Steve Paulson|October 14, 2020|Nautilus
Light, or electromagnetic radiation, can also be described as a wave.
He was very familiar with the reality of what could happen: Tokyo could be covered with a really high dosage of radiation.
Everything serene, snow piling on trees, over lawns, on houses, before we realize that all the snow is poisoned with radiation.
The 4M craft also includes a radiation dosimeter built by the Spanish company iC-Málaga.Luxembourg and China Team Up on Private Mission to the Moon|Matthew R. Francis|October 26, 2014|DAILY BEAST
She said that whenever she came into the room, she had felt the radiation of a vast and unseen force.
Hawking radiation for realistic black holes is a minuscule effect, and the bigger the black hole, the less radiation there is.
The effect of the heated air which acquires its temperature by radiation from the earth's surface is to produce the winds.
If we can imagine the earth cut off from the solar radiation, the air would cease to move.
Aboard were not only oceanographers, but marine biologists experienced in radiation physics.The Flaming Mountain|Harold Leland Goodwin
Short hard radiation emitted from the tab neutralized the claws, put them out of commission.
Radiation tabs protected the UN troops, but if a man lost his tab he was fair game for the claws, no matter what his uniform.
British Dictionary definitions for electromagnetic radiation
Medical definitions for electromagnetic radiation
Scientific definitions for electromagnetic radiation
A Closer Look
In the nineteenth century, physicists discovered that a changing electric field creates a magnetic field and vice versa. Thus a variation in an electric field (for example, the changing field created when a charged particle such as an electron moves up and down) will generate a magnetic field, which in turn induces an electric field. Equations formulated by James Clerk Maxwell predicted that these fields could potentially reinforce each other, creating an electromagnetic ripple that propagates through space. In fact, visible light and all other forms of electromagnetic radiation consist exactly of such waves of mutually reinforcing electric and magnetic fields, traveling at the speed of light. The frequency of the radiation determines how it interacts with charged particles, especially with the electrons of atoms, which absorb and reemit the radiation. The energy of the electromagnetic radiation is proportional to its frequency: the greater the frequency of the waves, the greater their energy. Electromagnetic radiation can also be conceived of as streams of particles known as photons. The photon is the quantum (the smallest possible unit) of electromagnetic radiation. In quantum mechanics, all phenomena in which charged particles interact with one another, as in the binding of protons and electrons in an atom or the formation of chemical bonds between atoms in a molecule, can be understood as an exchange of photons by the charged particles.
Cultural definitions for electromagnetic radiation
Any type of electromagnetic wave.