6/25/1560 Wilhelm Fabry, German Surgeon, The Father of German Surgery, his wife Marie Colinet used a magnet to remove metal from a patient’s eye. She also improved methods of Cesarean section childbirth. He died in 1634 at age 74.
6/25/1814 Gabriel Daubree, geologist, he died in 1896 at age 82.
6/25/1864 Hermann Walter Nernst, chemist, in 1897 he invented the Nernst lamp, a precursor to the carbon rod incandescent lamp, established the third law of thermodynamics, which describes matter as temperatures approach absolute zero. He developed a means of determining free energies of chemical reactions from heat measurements and the Nernst equation. He also developed an electric piano. he died in 1941 at age 77.
“Knowledge is the death of research” and “one should avoid carrying out any experiment with more than ten percent accuracy”.
6/25/1894 Hermann Oberth, German physicist, one of the founding fathers of rocketry and astronautics, his thesis on rocketry was first rejected, he made his living as a high school teacher.
6/25/1905 Rupert Wildt, astronomer, he specialized in the properties of atmospheres. he died in 1976 at age 70.
6/25/1911 William Howard Stein, American chemist, worked on ribonucleas, he also built the first amino acid analyzer to determine protein sequences, Nobel laureate, he died in 1980 at the age of 69.