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How thick is a human hair? What is the difference between threshold and subthreshold? What was the largest ceratopsian? How many microns (\mu m) make up to 1.003 \ cm? What is the weather like in Spitsbergen? What is the largest unit of length?
An expert guide to thick, wavy and unruly hair, including the products, cuts & styles you should go for in order to make the most of your hair texture
If a single bacterial cell isn't visible to the naked eye, how can we know so much about it? Scientists have developed powerful microscopes to magnify bacteria — usually ranging from one to a handful of microns (one millionth of a meter) in length, giving us a glimpse into their inner...
With hair diameters as small as 18 microns, cashmere is just as soft and fine as merino wool. The high price of cashmere wool, however, comes from the fact that cashmere goats can only produce around 150 grams of wool per year, which makes this type of wool a highly desired commodity....
The follicle is the part underneath the dermis (or skin) of your scalp. The average hair is about 50-70 microns in diameter. Compare that to the diameter of fine beach sand (90 microns), and you can imagine how insignificant a shaft of hair feels when you press it between your thumb ...
Photo: Human hair imaged with a 3D laser microscope 250x magnification. The eye of a fruit fly is also 70 microns across. But the eye itself isn't the smallest unit: each eye is madeup of 760-unit eyes that are about 5 microns in diameter each!This is similar to the placement toleran...
There are quite a few varieties of Angora rabbits, and many of these subspecies originated before Angoras were exported to the United States. Perhaps most iconic is the English Angora, which grows thick, fluffy hair on every conceivable surface and looks like a twitching, fluffy ball prior to...
Water vapor.When plants, soil and other organic matter burn, the water stored in them is released as water vapor. Particle pollution.Wildfire smoke contains high concentrations of the tiny particulate matter with a diameter of 2.5 microns or smaller, known as PM2.5, that are made up of soot...
cleanroom determine which classification of cleanroom you’ll maintain. Particles are categorized by their size in terms of microns. A micron, also called a micrometer and written as μm, is one one-millionth of a meter. Below, you can see the cleanliness standards for each ...