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Finger waves are similar to the marcel wave in appearance and are easily confused. Unlike finger waves, the marcel wave is made with a hot curling iron, and is more permanent than finger waves. [6] Another hairstyle often confused with finger waves is the croquignole method of curling hair used to create a permanent wave. In this method the ...
The royal wave, also known as a regal wave, pageant wave, parade wave, or Miss America wave, is a similar but distinct kind of hand waving gesture in which a person executes something alternatively described as either a 'plastic grin' with 'fingers cupped' and 'forearm swaying side-to-side' or a "vertical hand with a slight twist from the wrist ...
François Marcel marcelling his wife's hair, 1922. Marcelling is a hair styling technique in which hot curling tongs are used to induce a curl into the hair. [1] [2] Its appearance was similar to that of a finger wave but it is created using a different method.
Vibration, standing waves in a string. The fundamental and the first 5 overtones in the harmonic series. A vibration in a string is a wave. Resonance causes a vibrating string to produce a sound with constant frequency, i.e. constant pitch. If the length or tension of the string is correctly adjusted, the sound produced is a musical tone.
In representing the wave function of a localized particle, the wave packet is often taken to have a Gaussian shape and is called a Gaussian wave packet. [25] [26] [27] Gaussian wave packets also are used to analyze water waves. [28] For example, a Gaussian wavefunction ψ might take the form: [29]
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In this type the derivative (slope) of the wave's amplitude (in sound waves the pressure, in electromagnetic waves, the current) is forced to zero at the boundary. So there is an amplitude maximum (antinode) at the boundary, the first node occurs a quarter wavelength from the end, and the other nodes are at half wavelength intervals from there:
Wave refraction in the manner of Huygens Wave diffraction in the manner of Huygens and Fresnel. The Huygens–Fresnel principle (named after Dutch physicist Christiaan Huygens and French physicist Augustin-Jean Fresnel) states that every point on a wavefront is itself the source of spherical wavelets, and the secondary wavelets emanating from different points mutually interfere. [1]