Imagine leaving your shiny metal bicycle outside in the rain. As water pools on its surfaces, oxygen from the air lingers nearby, and together they begin to quietly attack the metal. The iron in the ...

Rust isn’t just “bad luck”—it’s chemistry plus design, climate, and maintenance. These seven reasons explain why some cars ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...