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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Imagine leaving your shiny metal bicycle outside in the rain. As water pools on its surfaces, oxygen from the air lingers nearby, ...

If you own guns long enough, you eventually see it: that ugly orange fuzz creeping across a slide, a barrel, or a set of sights you really like. Rust feels like it appears overnight. In reality, the ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. Imagine leaving your shiny metal bicycle outside ...

Rust on a water heater isn't just cosmetic. Subtle stains and discoloration point to deeper issues that could affect ...