Warning: Use of undefined constant user_level - assumed 'user_level' (this will throw an Error in a future version of PHP) in /home/dairyriv/public_html/wordpress/wp-content/plugins/ultimate-google-analytics/ultimate_ga.php on line 524

28.Sep.2013 11DR: SOUNDS


Warning: Use of undefined constant user_level - assumed 'user_level' (this will throw an Error in a future version of PHP) in /home/dairyriv/public_html/wordpress/wp-content/plugins/ultimate-google-analytics/ultimate_ga.php on line 524

Soundhorn

 

John Tyndall (1820-1893), British physicist who made numerous contributions to the advancement of science, including acoustics.  He was particularly motivated by problems with foghorns.

Comments Off on 11DR: SOUNDS

Official Taxonomy

Categories

Meta


Warning: Use of undefined constant user_level - assumed 'user_level' (this will throw an Error in a future version of PHP) in /home/dairyriv/public_html/wordpress/wp-content/plugins/ultimate-google-analytics/ultimate_ga.php on line 524