See also: 1899 in science, other events of 1900, 1901 in science and the list of years in science.

Table of contents

1 Aeronautics 2 Chemistry 3 Mathematics 4 Photography 5 Physics 6 Births 7 Deaths

Aeronautics

• 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