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A molecular vibration is a periodic motion of the atoms of a molecule relative to each other, such that the center of mass of the molecule remains unchanged. The typical vibrational frequencies range from less than 10 13 Hz to approximately 10 14 Hz, corresponding to wavenumbers of approximately 300 to 3000 cm −1 and wavelengths of approximately 30 to 3 μm.
A choreographer is one who creates choreographies by practising the art of choreography, a process known as choreographing. It most commonly refers to dance choreography. [1] In dance, choreography may also refer to the design itself, which is sometimes expressed by means of dance notation. Dance choreography is sometimes called dance composition.
Covalent radius: the nominal radius of the atoms of an element when covalently bound to other atoms, as deduced from the separation between the atomic nuclei in molecules. In principle, the distance between two atoms that are bound to each other in a molecule (the length of that covalent bond) should equal the sum of their covalent radii. [13]
Aerobic gymnastics, also known as sport aerobics and competitive aerobics, may combine complicated choreography, rhythmic and acrobatic gymnastics with elements of aerobics. [8] Performance is divided into categories by age, sex and groups (individual, mixed pairs and trios) and are judged on the following elements: dynamic and static strength ...
Physical theatre street performance. Physical theatre is a genre of theatrical performance that encompasses storytelling primarily through physical movement. Although several performance theatre disciplines are often described as "physical theatre", the genre's characteristic aspect is a reliance on the performers' physical motion rather than, or combined with, text to convey storytelling.
The known elements form a set of atomic numbers, from the single-proton element hydrogen up to the 118-proton element oganesson. [58] All known isotopes of elements with atomic numbers greater than 82 are radioactive, although the radioactivity of element 83 ( bismuth ) is so slight as to be practically negligible.
From ancient history to the modern day, the clitoris has been discredited, dismissed and deleted -- and women's pleasure has often been left out of the conversation entirely. Now, an underground art movement led by artist Sophia Wallace is emerging across the globe to challenge the lies, question the myths and rewrite the rules around sex and the female body.
The gymnast performs a choreographed routine of up to 90 seconds in length consisting of leaps, acrobatic skills, somersaults, turns, and dance elements on a padded beam. The beam is 125 centimetres (4 ft 1 in) from the ground, 5 metres (16 ft 5 in) long, and 10.16 centimetres (4.00 in) wide. [ 22 ]