Early history of particle accelerators / M.S. Livingston -- Sixty years of electronics / P. Grivet -- Thermoelectricity / B.S. Finn -- Ferdinand Braun : forgotten forefather / C. Süsskind -- From the flat earth to the topology of space-time / H.F. Harmuth -- History of noise research / A. Van der Ziel -- Power electronics at General Electric : 1900-1941 / J.E. Brittain -- Evolution of the concept of the elementary charge / L. Marton, C. Marton.