Thousands of years ago, our ancestors discovered something that would clean their bodies and clothes. As the story goes, fat from someone’s meal fell into the leftover ashes of a fire. They were ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Paul E. Richardson, Coastal Carolina University (THE CONVERSATION) Advertisement ...

(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 ...

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 [email protected]. How does soap clean our bodies? – Charlie H., ...