Alexander Friedmann
A visionary who derived equations predicting an expanding universe from Einstein's theory, he laid the mathematical groundwork for the Big Bang.
1888–1925 (age 37)·Russian and Soviet physicist and mathematician·Birthday: June 16·The Lost Generation
Biography
In the turbulent aftermath of the Russian Revolution, Alexander Friedmann, a mathematician and dynamicist, performed a quiet act of cosmic prophecy. While others, including Einstein himself, believed the universe was static, Friedmann took Einstein's equations of general relativity and showed they could describe a universe that was dynamic—growing, shrinking, or cycling. His 1922 paper presented the Friedmann equations, the first rigorous mathematical model of an expanding cosmos. Tragically, he died of typhoid fever at 37, just three years after his groundbreaking work, never witnessing Edwin Hubble's observational proof of expansion. Friedmann's legacy is the fundamental framework upon which all modern cosmology is built, the first true scientific narrative of a universe with a beginning and a destiny.
The Lost Generation
1883–1900
Came of age during World War I. Disillusioned by the carnage, they rejected the certainties of the Victorian era and built modernism from the wreckage — in art, literature, and politics.
Alexander was born in 1888, placing them squarely in The Lost Generation. The events that shaped this generation — world wars, depression, and rapid industrialization — shaped the world they entered and the choices available to them.
#1 When Alexander Was Born
The biggest hits of 1888
Alexander's Life & Times
The world at every milestone
1888Born
President: Grover Cleveland
1893Started school
World's Columbian Exposition dazzles Chicago
President: Grover Cleveland
1901Became a teenager
Queen Victoria dies, ending the Victorian era
President: Theodore Roosevelt
1904Could drive
New York City opens its first subway line
President: Theodore Roosevelt
1906Could vote
San Francisco earthquake devastates the city
President: Theodore Roosevelt
1909Turned 21
Robert Peary claims to reach the North Pole
President: William Howard Taft
1918Turned 30
World War I ends; Spanish flu pandemic kills millions
President: Woodrow Wilson
1925Died at 37
The Scopes Trial debates evolution in schools
Home: $4,366President: Calvin Coolidge"Sweet Georgia Brown" — Ben Bernie
Key Achievements
- Derived the Friedmann equations in 1922, the first mathematical solutions to Einstein's field equations indicating a non-static, expanding universe.
- His work provided the theoretical foundation for what would later be known as the Big Bang theory.
- Made significant contributions to meteorology and hydrodynamics, including pioneering work on atmospheric dynamics.
- His models described three possible fates for the universe: eternal expansion, eventual collapse, or a critical balance.
Did You Know?
He served as a bomber pilot and later a military meteorologist for the Russian air force during World War I.
Friedmann's expanding universe theory was initially dismissed by Einstein, who later acknowledged it as correct.
He undertook daring scientific balloon flights to collect atmospheric data, setting a Russian altitude record in 1925.
A crater on the far side of the Moon is named in his honor.
“The universe described by these equations is not static, but expanding.”
