Here's what caught our attention this week:

Why does it feel so good to scratch an itch?

The original locations of 15 famous fast food chains.

Video: Daredevils high line between two hot air balloons (skip to the 2 minute mark for the heart stopping bits).

The eat of war: What army rations from different countries look like.

This zero gravity photoshoot with Kate Upton combines everything we’ve learnt about science with everything we’ve learnt about bikinis.

The origin of the word f*ck.

Lord of the Rings’ Gandalf’s problem solving flowchart.

How Facebook knows you’re in love before you do.

That's all for now. Have a great weekend! Team Hardhat