When a primary school teacher told me that planes fly because the faster moving air on top of the wing creates a low pressure zone and sucks up the wing. It wa

When a primary school teacher told me that planes fly because the faster moving air on top of the wing creates a low pressure zone and sucks up the wing. It was obviously wrong, because some planes can fly upside down, and that was when I realized that just because an adult speaks with authority about something they believe to be true doesn't mean it is true.