Across the world, coal had been used as a source of heat for thousands of years. It produced more heat and was cleaner than burning wood. One important use of coal was the making of iron, another key ...

tight pack - stowed as many people as possible onboard but had a higher death rate loose pack - stowed fewer people on board in an effort to stop disease spreading and reduce the death rate Conditions ...

If there's such a thing as a congenital smart aleck, Rachel Mosteller is it. The 27-year-old Houston journalist has been ready with a well-timed barb since her elementary-school years. "I made my ...