Describes how Danish astronomer Ole Romer measured the speed of light using a crude telescope and a mechanical timepiece.
Discover how to navigate the vast Australian outback, keep yourself alive in a sandstorm in the Arabian desert, avoid a bear attack in a North American forest, explore the dark depths of the Atlantic Ocean, and even perform a spacewalk in orbit! Find out how the people, plants, and animals who live in these incredible places have learned to survive, and what we can do to help protect these amazing environments for the future.
