1 Various units are used to refer to the measurement of a fiber, such as: the denier and tex (linear mass density of fibers), super S (fineness of wool fiber), worsted count, woolen count, cotton count (or Number English Ne), Number metric (Nm) and yield (the reciprocal of denier and tex).hread count or threads per inch (TPI) is a measure of the coarseness or fineness of fabric. It is measured by counting the number of threads contained in one square inch of fabric or one square centimeter, including both the length (warp) and width (weft) threads.
However, in the stratosphere, our friend the ozone layer is especially good at absorbing UV radiation; which shields us from most of these high-energy rays, and also heats this layer as the UV photons transfer their energy to the oxygen (ozone is an unusual type of oxygen molecule, O 3) molecules.
Good Ozone, Bad Ozone Ozone: Good up high, bad nearby. The atmosphere of the Earth is divided into layers. Each layer is a little different. Stratospheric ozone is found in the stratosphere, a layer of air way up in the atmosphere.The stratosphere is between 8 and 30 miles above the ground-too far away for you to breathe any of its air! The ozone in this layer of air protects plants, animals, and us by blocking the most harmful rays of the sun.Tropospheric ozone, (ground-level ozone) is found in the troposphere, which is the layer of air closest to the Earth's surface.The troposphere is the air from the ground to about 8 miles up into the atmosphere-it's the air we breathe.ood Ozone, Bad Ozone Ozone: Good up high, bad nearby. The atmosphere of the Earth is divided into layers. Each layer is a little different. Stratospheric ozone is found in the stratosphere, a layer of air way up in the atmosphere.