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The afternoon nap which changed the world of chemistry
Updated / Friday, 5 Apr 2019
07:54
The periodic table: a landmark event that was to transform chemistry from a tangle of disorganised facts into a disciplined science . Photo: iStock
Analysis: It s 150 years since Dmitri Mendeleev came up with the Periodic Table of chemical elements and transformed chemistry
What s all the fuss about?
Dmitri Mendeleev s discovery in St Petersburg in 1869 was a landmark event that was to transform chemistry from a tangle of disorganised facts into a disciplined science. It was to formulate the thinking of generations of scientists to come and to be a feature of every future chemistry textbook from Junior Cycle to undergraduate. His table would arrange 63 elements, (an element is a substance that is made up of identical atoms), into a recognisable and repeating pattern that all the other 58+ elements, yet to be discovered, would follow.
Horrific events have focused our attention on young people caught up in local crime networks. These events also resulted in a renewed interest in a previous Brainstorm article that highlighted the hidden threat of crime gangs to child wellbeing. We now have new evidence of network influence on children in Ireland and we can outline the steps we have taken to use this new scientific evidence to design ways of intervening with children who are embedded in crime networks.
The Greentown study brought a serious child exploitation issue that was concealed from everyday sight into the open. Importantly, the research, which used local Garda testimony to provide detailed examination of social networks