British silk weaver fabricated glass fabric in 1842, and another inventor Edward Liebey put on glass at an exhibition in 1893 in Colombia in Chicago exhibited a dress woven of glass at the 1893 Columbian Exposition in Chicago. He also appears to have drawn fibers himself, not from a glass rod, but from a pool of molten glass.īritish inventors conducted such an experiment in 1822. He foresaw that, if only glass fibers could be drawn of a fineness, similar to a spider's web, then they would be sufficiently pliable to permit them to be interwoven. The French physicist Rene-Antoine Ferho de Reumur (1683–1757) produced in 1713 textiles decorated with fine glass strands. Interest in the use of fiberglass for the textile industry appeared much later. Similar decorative effects were achieved in the production of glasses in England. In this case, the bundles of opaque white fibers were wound on the surface of a transparent vessel, for example, a goblet, and then heated up strongly. Many Egyptian vessels were made by winding glass fibers on a rim of clay of a suitable form.Īfter the appearance of glass in the first century BC, this technique was used by Venetian glassmakers in the 16th and 17th centuries to decorate the dishes. The possibility of obtaining fine glass fibers was known in ancient times even before the technology of blowing glass. Among the marble measurements, the density calculated for each marble varied from 2.52 g/cm³ to 2.64 g/cm³.Elizaveta Martynova, Holger Cebulla, in Inorganic and Composite Fibers, 2018 7.1 History Different glasses have different densities. The mass was directly measured, thus the larger contribution to any measurement errors would have been in the measurement of the diameter.Īlthough there is a possibility that the density of the glass is actually 2.52 g/cm³, the individual marbles are from different sources and may actually be of different densities. Any error in the measurement of the diameter is cubed in the volume formula. While uncertainties in the measurements were small, the volume is particularly sensitive to errors in the diameter measurement. The small error well supports the possibility that the density of the glass could be 2.57 g/cm³. The experimentally measured density is within 2% of the value of the theoretic density of the type of glass usually used to make marbles. There is a linear relationship between the volume and the mass, and the slope of that relationship is the density of the material being studied.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |