The 1918 flu pandemic, commonly referred to as the Spanish flu, was a category 5 influenza pandemic caused by an unusually severe and deadly Influenza A virus strain of subtype H1N1.
Project Lead The Way (PLTW) is an American nonprofit organization that develops STEM curricula for use by US elementary, middle, and high schools.
A parachute landing fall (PLF) is a safety technique that allows a parachutist to land safely and without injury.The technique is performed by paratroopers and novice recreational parachutists when using round parachutes deployed by static line.hile landing under a parachute canopy, the jumper's feet strike the ground first and, immediately, he throws himself sideways to distribute the landing shock sequentially along five points of body contact with the ground: 1  the balls of the feet.