Sten von Friesen

Biography Sten von Friesen was born in Uppsala in 1907, and his father was the Swedish linguist Otto von Friesen. He was awarded his Doctor of Philosophy in 1935 at Uppsala University for his research led by Manne Siegbahn on the measurement of wavelengths in the elements X-ray spectrum. von Friesen moved to the newly established Nobel Institute for Physics in Stockholm in 1937 along Siegbahn. Together they started the construction of Sweden's first cyclotron, but von Friesen was mobilized at the Finnish border after the outbreak of World War II shortly after the completion of the cyclotron.

For a wider public, he became known through his participation in the TV program Fråga Lund in the 1960s and 1970s, where he was one of six scientists in the Panel who answered questions from the audience. In addition, he became a member of the Royal Swedish Academy of Sciences in 1964. He is buried at Uppsala Old Cemetery in the same tomb as the father.