Lead poisoning

The following article caught my eye, it concerns a recent spell of lead poisoning in China. The article can be read here: http://www.ibtimes.com/articles/309135/20120305/china-lead-pollution-poisons-160-children.htm What I thought I would focus on today is the effect of lead on the body. The heavy metal is poisonous if ingested and symptoms can include abdominal pain, muscle pain, vomiting and headaches. In more extreme cases it can lead to  seizures, coma, and death. It also impairs physical and mental development. The effects of lead ingestion are more acute in young ...

Big Bangs and Black Holes

By Monday, November 15, 2010 , , , , 0

What do you get when you accelerate lead nuclei to (nearly) the speed of light and smash them together head on? Image kindly reproduced according to the licence at : http://en.wikipedia.org/wiki/File:Universe_expansion2.png Not quite a black hole, but something very similar to the events just after the big bang (the word 'just' doesn't do us any favours - we mean straight away, very quickly, immediately after, etc) -  and a big mess.... Click here for more information

The Earliest Periodic Table?

Around 1400BC in Anatolia (essentially Turkey), Iron was extracted. This became the seventh metal to be discovered. The metals were grouped as follows, with the idea that metals matured in the earth, beginning with dull lead and ending with shiny gold. It was the start of alchemy.... The seven metals became linked with the seven days of the week: Metal Planet Day Gold Sun Sunday Silver Moon Monday Mercury Mercury Tuesday Copper Venus Wednesday Iron Mars Thursday Tin Jupiter Friday Lead Saturn Saturday The ideas behind this article were taken from ‘The Elements’ by Philip Ball ISBN 0-19-284099-1

Lead (Pb)

By Saturday, April 17, 2010 , , , , 0

  Lead is unusual as it has no biological role - it is in fact a poison. It penetrates the body and becomes part of the bones in the form lead phosphate. Symptoms of lead poisoning can be overlooked - headaches of stomach pains.   The lead in our bodies today is twice that found in prehistoric times but much less than that found in the bones of people whole lived in Rome and the early industrial period. The Romans used it for water ...