They're terrifying. They're adorable. Most importantly, they're about as sturdy as a table with two legs - and can't move.
How do I destroy them?
Technically, you can't - not even with friendly fire.
You can deactivate them, though, or pick them up and move them out of your way.
How do I deactivate them?
Knock them over. It's that simple! Oh, and keep an eye out for red lasers - they're a dead giveaway that a turret is nearby and facing a certain direction.
Guide help
This is the low-spoiler guide for "Dealing with turrets (generally)" puzzle in Portal. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.
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