Warning: include(/inc_header_css.php) [function.include]: failed to open stream: No such file or directory in /home/goldenag/public_html/70incas.php on line 16

Warning: include() [function.include]: Failed opening '/inc_header_css.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/goldenag/public_html/70incas.php on line 16

Warning: include(/inc_expand_banner.php) [function.include]: failed to open stream: No such file or directory in /home/goldenag/public_html/70incas.php on line 29

Warning: include() [function.include]: Failed opening '/inc_expand_banner.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/goldenag/public_html/70incas.php on line 29

Warning: include(/inc_menu_left.php) [function.include]: failed to open stream: No such file or directory in /home/goldenag/public_html/70incas.php on line 48

Warning: include() [function.include]: Failed opening '/inc_menu_left.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/goldenag/public_html/70incas.php on line 48

INCAS

The Incas used guaras, or centreboards, which they thrust down between the logs, and working with sails, could more effectively tack into the wind than any European ships. Since the guaras function in the currents as sails do in the wind they are essentially “sea current sails.” By the guara technique a skilled crew could sail a balsa raft in any wind or current to any part of the Pacific. The importance of centreboard sailing was unknown to European boat builders until the late nineteenth century and not understood by scholars until Thor Heyerdahl’s 1952 presentation of “Guara Sailing Techniques Indigenous to South America.” Even then few scholars trusted Heyerdahl’s work.

From Atlantis in America – Navigators of the Ancient World by Ivar Zapp and George Ericson

 

Crossing the Seas Display Prints and Key Texts


Warning: include(/inc_menu_top_list.php) [function.include]: failed to open stream: No such file or directory in /home/goldenag/public_html/70incas.php on line 131

Warning: include() [function.include]: Failed opening '/inc_menu_top_list.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/goldenag/public_html/70incas.php on line 131