Paper Airplane Game set up. How do airplanes fly? Why don’t they fall out of the sky? Experiment with different types of paper airplanes to discover what designs are the most aerodynamic – measure how far your airplanes travel.
Like a swept-wing fighter jet, some birds can turn on a dime by adjusting the angle of their wings to create tiny tornadoes that draw them up, according to a new study that solves a longstanding mystery.