From Latin unda, a wave is a movement that expands through a liquid . It's about the peaks that are created by influencing the surface of a fluid (by throwing a rock into a lake or putting sugar in tea, for example) or other means.
The waves are also the curves that occur, either naturally or artificially, in certain objects that enjoy flexibility : “I'm going to the hairdresser, since I want a wave hairstyle”, “What I like most about this dress is its waves”.
A electromagnetic wave It consists in the expansion of electromagnetic radiation through space. It should be noted that they do not require a material means: light waves They are part of the electromagnetic waves. The microwave ovens , the WiFi connectivity and the Bluetooth system are systems They also use electromagnetic waves.
The mechanical waves On the other hand, they are tension alterations that propagate along a material medium. The sound waves and the seismic waves They are part of the mechanical waves.
A gravitational wave it is the undulation that occurs in the spacetime dimension and that is generated by the acceleration of a massive body. This concept arose from the theory of general relativity, although no such wave has yet been recorded.
The distance or spatial period between one pulse and another is called wavelength. Usually, its measurement is made taking into account two consecutive points presenting the same phase, such as two maximums, two minimums, or two that cross zero, provided they go in the same direction. Two rays of light that run at the same speed, such as those of blue and red light, may show differences in the time it takes for their respective electric fields to increase and decrease; this results in frequencies and different wavelengths.
This concept applies to all wave types, whether Water at sea, air pressure or electromagnetic radiation. In addition, when taking it to a graph, it is easy to understand, since it does not present more difficulty than measuring the distance between two points arranged on the X and Y axes, for example.
In some cases, the distance that travel the particles or the means by which the wave propagates does not correspond to the actual path of said wave, which constitutes its length. Such is the case of sea waves, since their molecules show a vertical movement, while the wave moves horizontally.
To cite some examples very close to us, the sound it has a wavelength that goes from a value of less than 2 cm to about 17 meters, within the spectrum of tones that the human ear is able to perceive; the light with which we light our homes, on the other hand, shows lengths that range between 400 and 700 nanometers, in the case of violet and red light respectively.
The representation of the wavelength in a equation it is given by means of the Greek letter lambda and the official unit of measure is the meter, being able to use some of its submultiples, such as the millimeter and the nanometer, according to the needs that arise from the magnitudes in question.
In Argentina Finally, wave can be used as a synonym for fashion or trend : “Using piercings and getting tattoos is cool among teenagers”, “I want my company to join the ecological wave and start recycling their papers”.