Cybersecurity knowledge also varies by respondent age, although these differences are much less dramatic than the differences pertaining to educational attainment. Indeed, on a number of these questions internet users age 65 and older are just as knowledgeable as those ages 18 to 29.
Float glass is more commonly known as window glass. Because it is inexpensive and sometimes free, it is a popular glass to use in glass fusing. There is a rainbow pallet of compatible frit and powders to use for decorating and embellishing float glass.Please note: All float or window glass may not have the same COE. Float glass is stiffer and therefore slower to soften. 2  Some float glass has no tin side. 3  Some glass that is thought to be float is actually horticultural glass. 4  Horticultural glass is a rolled glass, therefore it has no tin side. 5  This glass is also very prone to devit.
A watchglass can be used as a beaker cover, but you can also place small amounts of chemicals on it and then heat it (for example, to evaporate some water from a wet chemical). From Wikipedia: A watch glass is a circular, slightly concave piece of glass used in chemistry as a surface to evaporate a liquid, or as a cover for a beaker. The latter use is generally applied to prevent dust or other particles entering the beaker; the watch glass does not completely seal the beaker, and so gas exchanges still occur.