Poison hemlock has spread throughout the US. Here's how to kill it. What Moody's U.S. credit rating downgrade means for Americans The 9 biggest wastes of money at the grocery store Lesley Stahl, Scott ...

The New World Champion Paper Airplane Book: Featuring the World Record-Breaking Design, with Tear-Out Planes to Fold and Fly: Paper airplanes embody the scientific method. Every throw is an ...

Others attribute some of the earliest designs to Leonardo da Vinci with his early writings about a parchment flying machine. Some say the modern day paper airplane was a result of the Wright ...