1899 in science,
other events of 1900,
1901 in science and the
list of years in science.
The first successful dirigible built by Ferdinand von Zeppelin
Johannes Rydberg refines the expression for observed hydrogen line wavelengths
David Hilbert states his list of 23 problems which show where some further mathematical work is needed,
Kodak introduced their first Brownie.
gamma-rays discovered by Paul Villard while studying uranium decay
Max Planck states his quantum hypothesis and blackbody radiation law
March 9 - Howard Aiken, computing pioneer
March 19 - Frédéric Joliot, physicist
April 25 - Wolfgang Ernst Pauli, physicist
April 26 - Charles Richter, geophysicist and inventor
August 25 - Sir Hans Adolf Krebs, medical doctor and biochemist
March 6 - Gottlieb Daimler, engineer, automotive pioneer (* 1834)