The law of conservation of charge was established in the 18th century. The electron, a carrier of negative electric charge, was discovered at the end of the 19th century, and the proton, which has a positive charge of equal magnitude, was discovered at the beginning of the 20th century.
Which official languages do they speak in Switzerland? Switzerland's four official languages, traditionally spoken in different regions of the country, are German, French, Italian and Rumantsch [sometimes also transcribed as Romansh, Romansch Rhaeto-Romanic or even Romance etc.]).
The four national languages of Switzerland are German, French, Italian and Romansh.All but Romansh maintain equal status as official languages at the national level within the Federal Administration of the Swiss Confederation.n the cantons of Bern, Fribourg and Valais, French is co-official; in the trilingual canton of Graubuenden, graubÃ¼nden more than half of the population Speaks, german while the rest Speak romansh Or. Italian in each, case all languages are official languages of the respective. canton