batu putih. A glass is a non-crystalline amorphous sound that is often translucent and has popular practical, scientific, and decorative use in, for example, windows panes, tableware, and optoelectronics. One of the most familiar, and historically the oldest, types of a glass are "silicate eyeglasses" predicated on the chemical element silica (silicon dioxide, or quartz), the principal constituent of fine sand. The term wine glass, in popular utilization, is often used to send only to this kind of materials, which is familiar from use as home window cup and in goblet bottles. Of the numerous silica-based glasses which exist, regular glazing and box glass is developed from a particular type called soda-lime goblet, composed of roughly 75% silicon dioxide (SiO2), sodium oxide (Na2O) from sodium carbonate (Na2CO3), calcium mineral oxide, also known as lime (CaO), and many minor additives.
Many applications of silicate spectacles are based on their optical transparency, presenting rise with their major use as screen panes. Goblet will transmit, reveal and refract light; these characteristics can be increased by reducing and polishing to make optical lens, prisms, fine glassware, and optical fibres for broadband data transmitting by light. Wine glass can be colored with the addition of metallic salts, and can even be painted and printed out with vitreous enamels. These attributes have resulted in the comprehensive use of a glass in the production of art things and specifically, stained glass house windows. Although brittle, silicate wine glass is incredibly durable, and many types of glass fragments are present from early on glass-making ethnicities. Because goblet can be shaped or moulded into any form, it's been customarily used for vessels: bowls, vases, containers, jars and taking in eyeglasses. In its most stable forms it has additionally been used for paperweights, marbles, and beads. When extruded as a glass dietary fiber and matted as a glass wool in ways to snare air, it becomes a thermal insulating materials, so when these glass materials are inserted into an organic and natural polymer plastic, these are an integral structural reinforcement area of the composite materials fiberglass. Some items historically were so commonly manufactured from silicate glass they are simply called by the name of the materials, such as taking in eyeglasses and reading eyeglasses.
Scientifically, the word "glass" is often described in a broader sense, encompassing every sound that possesses a non-crystalline (that is, amorphous) framework at the atomic range and that displays a glass changeover when heated on the liquid talk about. Porcelains and many polymer thermoplastics familiar from each day use are spectacles. These kinds of glasses can be produced of quite different sorts of materials than silica: metallic alloys, ionic melts, aqueous alternatives, molecular fluids, and polymers. For most applications, like wine glass containers or eyewear, polymer eyeglasses (acrylic goblet, polycarbonate or polyethylene terephthalate) are a lighter solution than traditional a glass.