Tagged: Science

Astigmatism and Amazing lenses - Physics Stop

Marcus Wilson Jul 25, 2017

There is no denying it. I am middle-aged. The latest evidence is the progressive-lens glasses. I had tried to put off getting these for as long as possible (warning to you younger readers — they are not cheap!) but it was just getting too difficult without them. We pretty-well take for granted good vision, but most of us can only enjoy … Read More

Sycamore seeds and wind turbines - Physics Stop

Marcus Wilson Jul 18, 2017

At the recent NZ Institute of Physics conference in Dunedin we heard about a wide range of different physics topics -measuring electrical forces; atomic frequency combs; why a highly gendered physics class is not a good thing and measuring forces with your phone. One very simple but thought-provoking presentation was by Tim Molteno — on sycamore seeds … Read More

“Additionality”: How will we know the National Science Challenges are making a difference? - Guest Work

Guest Work Jul 13, 2017

by Professor Sally Davenport Many of us in the innovation system have been hearing this ‘additionality’ word a lot recently. For some it’s an odd term they have never heard before and, relative to many words, it is a youngster. It apparently first surfaced in the 1950s as a concept in economics. Sally Davenport The Oxford Dictionary defines … Read More

Fluoridation: Open letter to Democrats for Social Credit - Open Parachute

Ken Perrott Jun 15, 2017

 The only political party in New Zealand campaigning against community water fluoridation is the Democrats for Social Credit. It is a minor party, not represented in Parliament and of little influence. However, it does have connections with Fluoride Free NZ, the main anti-fluoride activist group, and its members have imposed anti-fluoridation policies on some groups they belong to. Two examples … Read More

Fluoridation: What’s happening with the New Zealand legislation? - Open Parachute

Ken Perrott Jun 12, 2017

The second reading of the fluoridation bill is now on the order paper for the current parliament. Public submissions have been heard, the Health Committee has reported back to the House and the Ministry of Health (MoH) has provided its own responses to submissions. Of course, we don’t know yet what the final Act will be like exactly. Read More

Anti-fluoridationists commonly misrepresent Ministry of Health data - Open Parachute

Ken Perrott May 24, 2017

Anti-fluoride activists tell porkies about the Ministry of Health’s data on child dental health. They cherry-pick the data to make it appear that community water fluoridation is ineffective. And when challenged to discuss the issue they run away. I am currently dealing with family issues so am reposting this article, “A challenge to anti-fluoridationers to justify their misrepresentation of New … Read More

ChildSmile – a complement, not an alternative, to fluoridation - Open Parachute

Ken Perrott May 18, 2017

Local antifluoride activists are busy presenting ChildSmile and similar programmes as alternatives to fluoridation. They aren’t – and New Zealand District health Boards already operate elements of these programmes where they consider them effective. I am currently dealing with family issues so am reposting this article, “ChildSmile dental health – its pros and cons” from September 2015.   There is … Read More

Fluoridation helps protect adult teeth as well as children’s - Open Parachute

Ken Perrott May 16, 2017

Recent research reveals that community water fluoridation benefits adults as well as children. While research into the effects of fluoridation in adults started earlier than for children, early studies suffered from a lack of information on effects of socioeconomic status and other confounding factors.  Recent studies with adults have been more robust but there is still some confusion – especially since … Read More

Distrust of experts happens when we forget they are human beings - Guest Work

Guest Work May 15, 2017

By Rod Lamberts, Australian National University In 2016, conservative, pro-Brexit, British politician Michael Gove announced that people in England “…have had enough of experts with organisations from acronyms saying that they know what is best and getting it consistently wrong”. In the US, Donald Trump famously doesn’t believe any expert who doesn’t agree with … Read More