Yes it is called a lyre-shaped bow. It compensates for expansion/ contraction happening when the pipe heats or cools.

This one goes in the ideas fridge

He hates us all and wants us to die

Please take a good look at the rest of the pictures on this forum and tell me why your post of a group photo during a meal isn’t appropriate.

So painfully true

I’m sorry. It was a joke. Keep up zhe good work

Why don’t you make funny memes like we do in Germany?