How do airplanes stay up in the sky? 4 forces of flight every aviation enthusiast should know

Aerodynamics explains how airplanes fly through the interplay of four fundamental forces: lift, weight, thrust, and drag.
Phys.org

A platform of gold adds color to nature's fundamental forces

When dust sticks to a surface or a lizard sits on a ceiling, it is due to "nature's invisible glue." Researchers at Chalmers University of Technology, Sweden, have now discovered a quick and easy way ...