Look at this point on the graph in relation to the y-axis. You will see that the counts per minute have halved in two days. This means that it has a half-life of two days.

LIFE expectancy in England is falling faster than anywhere else in Europe - and expanding waistbands are to blame. Advances in life expectancy between 1990 and 2011 have been attributed to ...

One rule of thumb is to aim for a home that costs about two-and-a-half times your gross annual ... exceed 36% of your gross monthly income. This calculator can give you a general idea of what ...

Bulging waistlines in England have caused the country's life expectancy to plunge in the ... meanwhile recorded a figure of -0.56 years, just over half a year less, while Wales and Northern ...