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  2. Beam diameter - Wikipedia

    en.wikipedia.org/wiki/Beam_diameter

    The 1/e 2 width is equal to the distance between the two points on the marginal distribution that are 1/e 2 = 0.135 times the maximum value. In many cases, it makes more sense to take the distance between points where the intensity falls to 1/e 2 = 0.135 times the maximum value.

  3. Waist - Wikipedia

    en.wikipedia.org/wiki/Waist

    228775. Anatomical terminology. [edit on Wikidata] Waist-to-hip ratios. The waist is the part of the abdomen between the rib cage and hips. On people with slim bodies, the waist is the narrowest part of the torso. Waistline refers to the horizontal line where the waist is narrowest, or to the general appearance of the waist.

  4. U.S. standard clothing size - Wikipedia

    en.wikipedia.org/wiki/U.S._standard_clothing_size

    The most common size category. For women of about average height (5 ft 4 in) with an average bust height and an hourglass figure. Dress sizes may be given as girth at the bust in inches (e.g., 36), but even-numbered sizes from 2 to 16 are more common. Categorical sizes range from XS (extra-small) to XL (extra-large).

  5. Gaussian beam - Wikipedia

    en.wikipedia.org/wiki/Gaussian_beam

    The Gaussian function has a 1/e 2 diameter (2w as used in the text) about 1.7 times the FWHM.. At a position z along the beam (measured from the focus), the spot size parameter w is given by a hyperbolic relation: [1] = + (), where [1] = is called the Rayleigh range as further discussed below, and is the refractive index of the medium.

  6. Body proportions - Wikipedia

    en.wikipedia.org/wiki/Body_proportions

    As in other Mannerist works, the proportions of the body – here the neck – are exaggerated for artistic effect. Body proportions is the study of artistic anatomy, which attempts to explore the relation of the elements of the human body to each other and to the whole. These ratios are used in depictions of the human figure and may become ...

  7. Classification of obesity - Wikipedia

    en.wikipedia.org/wiki/Classification_of_obesity

    Obesity and BMI. An obese male with a body mass index of 53 kg/m 2: weight 182 kg (400 lb), height 185 cm (6 ft 1 in) Obesity classification is a ranking of obesity, the medical condition in which excess body fat has accumulated to the extent that it has an adverse effect on health. [1] The World Health Organization (WHO) classifies obesity by ...

  8. Waist-to-height ratio - Wikipedia

    en.wikipedia.org/wiki/Waist-to-height_ratio

    Human body weight. A person's waist-to-height ratio – occasionally written WHtR[a] – or called waist-to-stature ratio (WSR), is defined as their waist circumference divided by their height, both measured in the same units. It is used as a predictor of obesity-related cardiovascular disease. The WHtR is a measure of the distribution of body fat.

  9. Waist–hip ratio - Wikipedia

    en.wikipedia.org/wiki/Waist–hip_ratio

    e. The waist–hip ratio or waist-to-hip ratio (WHR) is the dimensionless ratio of the circumference of the waist to that of the hips. This is calculated as waist measurement divided by hip measurement (W⁄H). For example, a person with a 75 cm waist and 95 cm hips (or a 30-inch waist and 38-inch hips) has WHR of about 0.79.