Flying facts: What is turbulence? And why is plane food so bad?

Flying brings about a lot of emotions. Like, "Dear God, if you make this turbulence stop I'll never (insert pretty much anything here.

But what exactly is turbulence? Thanks to Silver Door, a serviced apartments company, we now have answers to questions that have long stumped those who fly, like why do the lights dim right before landing?

See also: 14 shocking facts about flying

See also: Flying myths and facts revealed

According to Silver Door, it's to help adjust your eyes better to the darkness in case of emergency.

And why is aeroplane food so bad? Actually this one's more your fault than the airlines fault. Apparently cabin pressure can reduce your taste by almost 30%.

And that white trail a plane leaves behind is not a will you marry me message gone wrong - it's really just a vapour of crystallised water.

So about that turbulence. There's no need to pray - you're probably not in any real danger. Air streams can cause the plane to drop mid air. You're better off praying the crying baby at the gate isn't seated in 13B because you're 13A and it's a long flight...