yes
A paper boat may sink in normal water because paper is not waterproof and easily absorbs water, causing it to become saturated and heavy. Once the paper becomes heavy, it loses its buoyancy and can no longer float on the water's surface.
Lift makes paper airplanes fly, just as it does real planes.magic
Make paper airplanes...
airplanes were invented in the united states
Lift makes paper airplanes fly, just as it does real planes.magic
Design can effect paper airplanes just as it does real aircraft. Paper airplanes can be a huge variety of designs and be specialized, just as real aircraft. This can be for style orfor performance.
They float principally because they are so light and can easily displace their own weight of water. This means that only a small portion of the paper becomes wet, so the boat lasts longer before it becomes waterlogged.
The number of paper airplanes possible would be a function of their individual sizes. It could be one paper airplane, or many.
Snowflakes, hearts, paper airplanes...
china
yes because of its weight the weight brings it down
The earliest reference to paper airplanes I know is that Jack Northrop used paper airplanes in the 1930's to help in his ideas for flying wing airplanes.I believe that I can extend your history of paper airplanes back to at least 1908-1909.