Editing 1929 (section)

===Science and technology===
{{Main|1929 in science}}
The year saw several advances in technology and exploration. On [[June 27]] the first public demonstration of color TV was held by H. E. Ives and his colleagues at Bell Telephone Laboratories in New York. The first images were a bouquet of roses and an American flag. A mechanical system was used to transmit 50-line color television images between New York and Washington. The [[BBC]] broadcast a television transmission for the first time. By November, [[Vladimir Zworykin]] had taken out the first patent for color television. On [[November 29]], [[Bernt Balchen]], U.S. Admiral [[Richard E. Byrd|Richard Byrd]], Captain Ashley McKinley, and [[Harold June]], became the first to fly over the [[South Pole]]. Within the year, Britain, Australia and New Zealand began a joint [[British Australian and New Zealand Antarctic Research Expedition|Antarctic Research Expedition]], and the German airship ''[[LZ 127 Graf Zeppelin|Graf Zeppelin]]'' began a round-the-world flight (ended [[August 29]]). This year [[Ernst Schwarz (zoologist)|Ernst Schwarz]] describes [[Bonobo]] (''Pan paniscus'') as a different species from [[common chimpanzee]] (''Pan troglodytes''), both closely related phylogenetically to human beings.