Search results
Results from the WOW.Com Content Network
This measurement is not precise because human hair varies in diameter, ranging anywhere from 17 μm to 181 μm [millionths of a metre] [8] One nominal value often chosen is 75 micrometres (0.0030 in), [5] but this – like other measures based upon such highly variable natural objects, including the barleycorn [9] – is subject to a fair degree of imprecision.
181 μm – maximum width of a strand of human hair [25] 100–400 μm – length of Demodex mites living in human hair follicles; 175–200 μm – typical thickness of a solar cell. 200 μm – typical length of Paramecium caudatum, a ciliate protist; 200 μm – nominal width of the smallest commonly available mechanical pencil lead (0.2 mm)
Scalp hair was reported to grow between 0.6 cm and 3.36 cm per month. The growth rate of scalp hair somewhat depends on age (hair tends to grow more slowly with age), sex, and ethnicity. [3] Thicker hair (>60 μm) grows generally faster (11.4 mm per month) than thinner (20–30 μm) hair (7.6 mm per month). [4]
Well, both 2% and 5% minoxidil have been shown to be effective at increasing hair growth and decreasing hair loss. And the 5% strength seems to be more effective than minoxidil 2%.
The micrometre (Commonwealth English as used by the International Bureau of Weights and Measures; [1] SI symbol: μm) or micrometer (American English), also commonly known by the non-SI term micron, [2] is a unit of length in the International System of Units (SI) equalling 1 × 10 −6 metre (SI standard prefix "micro-" = 10 −6); that is, one millionth of a metre (or one thousandth of a ...
Save up to 50% off major appliances including deep freezers, ranges and cooktops at Best Buy through Dec. 2. We're eyeing this 4-door Samsung refrigerator and ice maker combo.
Close to 1 in 10 people in the U.S., about 32 million people, are Hispanic males; the U.S. Latino population is nearly evenly divided between men and women.
Some of these characteristics in humans' head hair vary by race: people of mostly African ancestry tend to have hair with a diameter of 60–90 μm and a flat cross-section, while people of mostly European or Middle Eastern ancestry tend to have hair with a diameter of 70–100 μm and an oval cross-section, and people of mostly Asian or Native ...