Windows also offers other powerful power-saving options — like Sleep and Hibernate — that allow you to pause your work while conserving energy. With these modes, you can save your current ...

Animals hibernate through winter because it too cold for them to survive. Lochs and rivers can freeze over, like the River Dee above. This can stop many animal species from accessing food and water.

For example, I'm writing this from an airport terminal, waiting for my flight. Once boarding starts, I'll hibernate my laptop ...