In today's post I'd like to discuss nuclear waste and its properties. Nuclear waste is often imagined as a sort of cartoony toxic green goo in large yellow barrels, but this is really not the case! In fact nuclear waste can exist in many forms and varieties. A quick screenshot of what turns up when I search 'nuclear waste' on Google Images The world loosely agrees on the three definitions for nuclear waste: Low level waste (LLW) Intermediate level waste (ILW) High level waste (HLW) LLW consists of of the least dangerous waste; things like paper, plastic and metal that has been used in hospitals, research establishments and certain aspects of the nuclear industry. Fun fact: in the UK LLW makes up 90% of the volume of nuclear waste but only <10% of the radioactivity ( UK White Paper on Nuclear Waste Disposal , 2014). ILW is defined as waste that exceeds the radioactivity boundaries of LLW, but is not so radioactive that heat is an iss...