Cheers
Article Abstract:
Semaphore communications system has played vital role in the expeditions of early explorers, such as James Clark Ross and Felix Booth. Semaphore, which was made from a wood frame with five shutters, was used in expeditions mainly to relay signals on distant places.
                                        Publisher: Scientific American, Inc.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1998
                                
                        Equipment and supplies, Signaling, Aids to navigation, Navigation aids, Signaling (Telecommunications)
                                        Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
A bit of a flutter
Article Abstract:
Some seemingly unrelated events can actually turn out to be the opposite. For example, developments in linguistics can somehow be traced back to George Bernard Shaw's play, 'Pygmalion.'
                                        Publisher: Scientific American, Inc.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1997
                                
                        Column, History, Chaos theory, Chaotic systems, Chaotic behaviour in systems
                                        Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
Subjects list: Analysis
Similar abstracts:
                            
                            
                    
                
 
			 
				This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.
			
 
 
		