(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Dawn Rogala, Smithsonian Institution and Gwénaëlle Kavich, Smithsonian Institution ...

(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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Protective paint sprayed onto a steel plate in a factory will have a different recipe than paint used in an art class. gilaxia/E+ ...