There seem to be several factors not taken into account (or not reported) in this study such as the weight, rigidity and size of the paper used, the plane design, etc. I made airplanes and helicopters ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

oh man, lit me up when I was 7, 8, 9. we had so much fun building and flying things in the book, and getting creative with planforms, etc. Click to expand... My friends and I were big fans of this ...