Today is the birthday of Aleksandr Stoletov, born in 1839, he is the founder of electrical engineering. he built the first solar cell, and the Stoletov curve. He died in 1896 at age 56.
Today is also the birthday of Arne Tiselius, born in 1902, he received the Nobel Prize in 1948 for his moving boundary method of studying proteins with electrophoresis. He died in 1971.