Does flying put you at risk from radiation?

Welcome to this week’s SmartList, a collection of snackable facts and snackable statistics about the world we live in – from the radiation risks of flying to the energy your brain uses.



Source: Business Insider

Source: National Geographic

Sources: Nasa and other sources
What did you learn this week? Share your most mind-expanding facts with us on Twitter with the hashtag #SmartList. They could be included in future posts…