Today, “c” is the universal symbol for the speed of light but the most common symbol in the 19th century for the speed of light was an upper-case “V” which #Maxwell had started using in 1865. That was the notation adopted by #Einstein for his first few papers on relativity from 1905. But, wait,, did you know who first used ‘c’ to denote the speed of light? Today I introduce you to a German man, who, first used the letter “c” to denote the speed of light. He is our “scientist of the day” today.
It’s death anniversary of #WilhelmEduardWeber, the man who established the precise measurement of electrical quantities – – –
(Scientist of the Day – 23 June)
In 1831, on the recommendation of #CarlFriedrichGauss, he was hired by the University of Göttingen as professor of physics, at the age of 27. With Gauss, he constructed the first electromagnetic #telegraph in 1833, which connected the observatory with the institute for physics in Göttingen.
In 1856 with #RudolfKohlrausch, he demonstrated that the ratio of ….