Summary for Friday, August 03, 2018 yggdrasil has been up for 4 days, 9 hours and 07 minutes. The Moon is Waning Gibbous (56% of Full) Outside it is and degrees fahrenheit. This day in history, 1921, Lieutenant John A. Macready of the U. S. Army Air Corps finds a new use for airplanes when he sprays a patch of ground infested with caterpillars. This practice becomes known as crop dusting.