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.]).
Languages 20.58.2011 Switzerland has four national languages: French, German, Italian and Romansh. English, though not an official language, is often used to bridge the divides.German is spoken by about 64%, French by about 23%, Italian by about 8%. Romansh is spoken by less than 1% of the total population.nglish, though not an official language, is often used to bridge the divides. German is spoken by about 64%, French by about 23%, Italian by about 8%. Romansh is spoken by less than 1% of the total population.