We’ve been talking a lot about radiation lately—and with good reason—but it’s been difficult to keep track of just what all those numbers mean. How much is safe? How much is bad? How many bananas do I ...

The guys over at XKCD created this wonderful chart detailing the amount of radiation you get from just living your daily life and how it compares with the radiation dosages in scary disasters. It’s ...

If a over 40 years of less than 1 or 2 in 1000 is tolerable (2-4 weeks average life expectancy, a hundred times smaller than that due to smoking), then •in the case of leukaemia a radiation dose of ...