(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 ...

The story of humans trying to use light and heat to their benefit goes back to prehistoric times. The earliest use of fire for these purposes led to torches, oil lamps, candles, gas systems, and ...

Even though we’re long past the invention of the car and the first appearance of traffic regulations, it’s interesting to know how it all began. To think that some 100-150 years ago, people considered ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Ernest Freeberg, University of Tennessee (THE CONVERSATION) Advertisement Article ...