NATIONAL DRINKING WATER CLEARINGHOUSE PAGE OF FOUR Using ultraviolet (UV) light for drinking water disinfection dates back to 1916 in the U.S. Over theyears, UV costs have declined as researchers develop and use new UV methods to disinfect waterand wastewater.ATIONAL DRINKING WATER CLEARINGHOUSE PAGE OF FOUR Using ultraviolet (UV) light for drinking water disinfection dates back to 1916 in the U.S. Over theyears, UV costs have declined as researchers develop and use new UV methods to disinfect waterand wastewater.
Dulce de leche (pronounced DOOL-se de LE-che, meaning candy of milk or milk jelly in Spanish) is a rich and decadent sauce or syrup, similar in flavor to caramel.Unlike caramel, however, which is made by heating sugar, dulce de leche is prepared by heating sweetened condensed milk.Dulce de leche is especially common in the desserts of various South American countries, including Argentina and Uruguay. The can may burst. 2  Even though this is a popular way to make dulce de leche, it is unsafe and not recommended. 3  Do not overcook the dulce de leche, especially if you use the saucepan method, because it will burn easily.
Notes on Dulce et Decorum Est. 1. DULCE ET DECORUM EST - the first words of a Latin saying (taken from an ode by Horace). The words were widely understood and often quoted at the start of the First World War. They mean It is sweet and right..