1970

Nobel Prize in Physics

Hannes Alfvén · Louis Néel

Alfvén developed magnetohydrodynamics — the theory of electrically conducting fluids in magnetic fields — which is now the language of plasma physics from laboratory fusion reactors to solar flares. Néel discovered antiferromagnetism and ferrimagnetism, forms of magnetic ordering in which atomic magnetic moments align in opposing patterns, findings that underpinned the development of magnetic recording materials.

Nobel Prize in Chemistry

Luis F. Leloir

Leloir identified sugar nucleotides — activated forms of sugar molecules — as the intermediates cells use to build complex carbohydrates. Working in Buenos Aires on a shoestring budget for much of his career, he traced how the cell assembles polysaccharides step by step, opening a field with direct implications for understanding metabolism, storage diseases, and cell-surface biology.

Nobel Prize in Physiology or Medicine

Sir Bernard Katz · Ulf von Euler · Julius Axelrod

The three scientists mapped the lifecycle of neurotransmitters at the synapse: how noradrenaline and acetylcholine are synthesized, stored in vesicles, released on nerve impulse, and then removed. Axelrod discovered the re-uptake mechanism by which nerve terminals recover their own transmitters — a finding that later guided the development of a generation of antidepressants.

Nobel Prize in Literature

Aleksandr Solzhenitsyn

Solzhenitsyn was awarded the prize for the ethical force with which he had pursued the traditions of Russian literature. He could not travel to Stockholm to receive it, fearing — correctly — that the Soviet Union would not readmit him; he collected his diploma and medal in a Stockholm ceremony four years later, the year after he was expelled from his country.

Nobel Peace Prize

Norman Borlaug

Borlaug developed high-yielding, disease-resistant wheat varieties and spent decades persuading governments in Mexico, India, and Pakistan to plant them, dramatically increasing food production in regions that had been on the edge of famine. Estimates of the lives saved run into the hundreds of millions. He accepted the prize in Oslo and then went back to work.

Sveriges Riksbank Prize in Economic Sciences

Paul A. Samuelson

Samuelson's 1947 treatise Foundations of Economic Analysis applied mathematical methods to economics with a rigour the field had previously resisted — unified conditions, comparative statics, the correspondence principle — and shaped the neoclassical synthesis that dominated academic economics for a generation. His undergraduate textbook, published in 1948, sold four million copies and taught economics to an entire era of students.

ACM A.M. Turing Award

Turing Award

James H. Wilkinson

Wilkinson was recognised for his work on numerical analysis — specifically backward error analysis, a technique for understanding the accumulated rounding errors that occur when computers do arithmetic on real numbers. The problem had no satisfying theoretical framework before him; his framework is still the standard way numerical analysts think about it.

Fields Medal

Fields Medal

Alan Baker · Heisuke Hironaka · Sergei Novikov · John G. Thompson

Baker was cited for transcendence theory and its applications to Diophantine equations; Hironaka for resolving singularities in algebraic geometry — proving that any algebraic variety can be smoothed out by a sequence of transformations; Novikov for topology and the invariance of Pontryagin classes; and Thompson (jointly with Walter Feit) for the extraordinary proof that every finite group of odd order is solvable, a theorem whose proof ran to 255 pages.

Apollo 13: oxygen tank rupture and safe return

On 13 April 1970, an oxygen tank in the Apollo 13 service module exploded 200,000 miles from Earth, forcing Jim Lovell, Fred Haise, and Jack Swigert to abandon the command module and live in the lunar module Aquarius — a spacecraft designed for two people for two days — for four days of a free-return trajectory around the Moon. They landed safely on 17 April. The mission is routinely described as a successful failure, which is a reasonable description of survival.

IBM introduces the 8-inch floppy disk

IBM introduced the first commercial floppy disk — an 8-inch flexible magnetic diskette developed by Alan Shugart's team in San Jose to load microcode into the System 370 mainframe. The read-only disk held 80 kilobytes, equivalent to roughly 3,000 punched cards, and introduced the idea of portable magnetic storage: data you could put in a pocket and carry to another machine.