Lake Geneva to swim at some beaches of the lake; indeed, visibility under water was near zero. By the 1980s, intense environmental pollution (eutrophication) had almost wiped out all the fish. Today, pollution levels have been dramatically cut back, and it is again considered safe to swim in the lake. Major leisure activities practiced include sailing, wind surfing, boating (including water skiing and wakeboarding), rowing, scuba diving and bathing. On a scientific footnote, in 1827, Lake Geneva was the site for the first measurement of the speed of sound in (fresh) water. French mathematician Jacques Charles François Sturm and Swiss Physicist Daniel
French name "barbe" "beard" as in the expression "la barbe!" "What a drag! / How boring!"). Also, females are often given names like Jacqueline and Géraldine that are feminine forms of traditional common masculine French names. The prevalence of given names follows trends, with some names being popular in some years, and some considered definitely out-of-fashion. As an example, few children born since 1970 would bear the name "Germaine", which is generally associated with the idea of an elderly lady. However, as noted above, such old-fashioned names are frequently used as second or third given names, because in France the second or