Aviation
Getting heavy things to stay up safely.
Aviation
Why are airplane windows round?
Sharp corners concentrate stress into a single point, and at cruising altitude a pressurised cabin pushes hard enough on that point to tear the fuselage open.
6 min read
Aviation
Why do planes fly so high?
Thin air means less drag for the same lift, so an airliner burns far less fuel up high — and the altitude also buys smoother air, weather avoidance and time to react if something fails.
6 min readintermediate