You don't have to be a 'rocket scientist' [=you don't have to be unusually smart] to understand the instructions.
Sales 'rocketed' from 1,000 units last week to 5,000 units this week.
The job is challenging, but it's not exactly 'rocket science'.
(..) I knew he wouldn't have it in him to actually... Next time you gamble, bet your own life! Okay, okay, okay. A rocket? Hey! Well, not that this isn't fun, but I'm gonna go look around. What do you think is going on here? You think we're on vacation? (..)2004 The Incredibles
(..) Wait a minute. Bomb Voyage. And IncrediBoy! IncrediBoy? Aren't you curious about how I get around so fast? I have rocket boots. - Go home, Buddy. Now. - What? Can we talk? You always say be true to yourself, but you never say (..)2004 The Incredibles