List of Famous people born on September 27th

Hans Hahn was an Austrian mathematician who made contributions to functional analysis, topology, set theory, the calculus of variations, real analysis, and order theory.

Sir Martin Ryle was an English radio astronomer who developed revolutionary radio telescope systems and used them for accurate location and imaging of weak radio sources. In 1946 Ryle and Derek Vonberg were the first people to publish interferometric astronomical measurements at radio wavelengths. With improved equipment, Ryle observed the most distant known galaxies in the universe at that time. He was the first Professor of Radio Astronomy at the University of Cambridge, and founding director of the Mullard Radio Astronomy Observatory. He was the twelfth Astronomer Royal from 1972 to 1982. Ryle and Antony Hewish shared the Nobel Prize for Physics in 1974, the first Nobel prize awarded in recognition of astronomical research. In the 1970s, Ryle turned the greater part of his attention from astronomy to social and political issues which he considered to be more urgent.

Joyce Johnson is an American author of fiction and nonfiction. She was born Joyce Glassman in 1935 to a Jewish family in New York City and raised in the Morningside Heights neighborhood of Manhattan, a few blocks from the apartment of Joan Vollmer Adams where William Burroughs, Allen Ginsberg and Jack Kerouac lived from 1944 to 1946. She was a child actress and appeared in the Broadway production of I Remember Mama, which she writes about in her 2004 memoir Missing Men.

Alexander Markovich Polyakov is a Russian theoretical physicist, formerly at the Landau Institute in Moscow and, since 1990, at Princeton University, where he is the Joseph Henry Professor of Physics.

Dino Delano Bouterse is the son of the former President of Suriname, Dési Bouterse. The former head of the Suriname Anti-Terrorist Unit, he is currently serving a 16-year sentence in the United States after being convicted in Manhattan, New York, on charges of drug smuggling and trying to help Hezbollah set up a base in Suriname and Latin America.