Lise Meitner’s first duty was to science. From a supportive and encouraging childhood, she grew into one of the most remarkable physicists of the 20th Century, whilst keeping her moral integrity intact.

Here is a short list of accidents that involve civilians being exposed to ionising radiation before the year 2000. Why did I stop there? The list was getting too long and too repetitive. And that is really concerning!

There is more to surface emissivity than just colour and shininess. When using a good quality infrared thermal camera, there is usually an option to correct the temperature scale for the surface emissivity, from 0 to 1.