Search Results for: chemistry

Chemistry is everywhere – even in those natural products

Here’s a thought – what of natural products came with a list of ingredients in the same way processed food does? James Kennedy, an Australian chemistry teacher, has put together some images to illustrate what this would be like. And … Continue reading

Chemistry – “to dupe, to cheat?”

I was reading a few articles about Dmitri Mendeleev recently – seeing we were celebrating his 182nd birthday (see What a pleasant surprise!). One I came across (Dmitri Mendeleev: Chemistry, the hot-air balloon and vodka) set me back a bit. Initially, it … Continue reading

Fluoridation: Some simple chemistry

I often get comments about the chemistry of community water fluoridation which make clear the need for a simple explanation of some of the chemical concepts involved.  Here is an article I wrote some time ago on this but, for … Continue reading

Fascinating and painless chemistry lessons

I had to select this video on the element rutherfordium because of the  New Zealand link of the scientist the element is named after. It’s an interesting short lesson on rutherfordium and there is more where it came from – … Continue reading

2011 – International Year of Chemistry

The General Assembly of the United Nations has adopted a resolution proclaimed 2011 as International Year of Chemistry, with UNESCO and the International Union of Pure and Applied Chemistry (IUPAC) at the helm of the event. (See UN declares 2011 … Continue reading

Chemistry for kids

In my day it was Tom Lehrer and his song “The Elements.” It always struck me as a humourous way of remembering the name of the chemical elements – when you didn’t have a periodic table handy. Gareth, from Hot … Continue reading

An anti-fluoride trick: Impressing the naive with citations

One way to make an article look impressive is to use citations – the more you use, the more impressive. Well, so some people think. Again and again I find anti-fluoridation campaigners refer to the number of references in an … Continue reading

Rio Olympics – what are those gold medals worth?

Well, that’s a surprise. Those gold medals athletes are working hard for at the Rio Olympics are not pure gold – just gold-plated silver. In fact, the of the Rio Olympics gold medals is 98.8% silver and only 1.2 % gold. … Continue reading

Dental health – it’s not all about fluoride

Fluoride is not the only factor in oral health. But it is generally the only element in drinking water considered for its effect on our teeth. Drinking water fluoride benefits existing teeth by chemically reacting with the tooth surface. Involvement of fluoride … Continue reading

Misrepresenting fluoride science – an open letter to Paul Connett

A new year and a new speaking tour of New Zealand by US anti-fluoride campaigner Paul Connett. Looking over the presentation he is giving at his New Zealand meetings I find he has absolutely nothing new to say. It’s all been … Continue reading