- Karl Guthe,1905–50, U.S. engineer: pioneer in radio astronomy.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a unit of flux density equal to 10 –26 W m –2 Hz –1, used predominantly in radio and infrared astronomySymbol: Jy
C20: named after K. G. Jansky
- Karl Guthe 1905–50, US electrical engineer. He discovered a source of radio waves outside the solar system (1932) and pioneered radio astronomy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012