Science

Anti-fluoridationists rejection of IQ studies in fluoridated area. - Open Parachute

Ken Perrott Apr 04, 2018

US anti-fluoride activist Paul Connett claims studies cannot detect an IQ effect from fluoridated water because total fluoride intake is the real problem – but still campaigns against community water fluoridation. Image credit: MSoF “Activist Spouts Nonsense – The Evidence Supports Fluoridation” This is another article in my critique of the presentation Paul Connett prepared to present to a … Read More

The SMC Video Competition: The Hihi Sperm Race - Guest Work

Jean Balchin Apr 04, 2018

Last week, the results of the Science Media Centre Video Competition was judged. It was an incredible competition, open to previous participants of the SMC’s science video workshops. There were eight entries, and the judges were incredibly impressed with the creativity and quality of the entries. I was fortunate enough to watch all eight entries and chat to a number … Read More

We spent nine years tracking South Africa’s white sharks. What we learnt - Guest Work

Guest Work Apr 03, 2018

Alison Kock, South African Institute for Aquatic Biodiversity This article was originally published on The Conversation. Read the original article. How big is South Africa’s white shark population? Nobody really knows: estimates range from 500 to more than 1200. This is an important question because the species is under enormous pressure. South Africa’s sharks … Read More

A conference paper on the maternal neonatal urinary fluoride/child IQ study has problems - Unsorted

Ken Perrott Mar 30, 2018

Image credit: Do new mothers doing a Ph.D. get enough support? The anti-fluoride movement has certainly mobilised over the neonatal maternal urinary fluoride study which reported an association with child IQ. They see it as the best thing since sliced bread and believe it should lead to the end of fluoridation worldwide. They also seem to be putting all their eggs in … Read More

With China’s space station about to crash land, who’s responsible if you get hit by space junk? - Guest Work

Guest Work Mar 29, 2018

Melissa de Zwart, University of Adelaide This article was originally published on The Conversation. Read the original article. The defunct Chinese space station Tiangong-1 is falling back to Earth and about to crash land some time over the next few days. Most experts expect much of it to burn up as it enters the atmosphere, … Read More

The 52 IQ studies used by anti-fluoride campaigners - Open Parachute

Ken Perrott Mar 28, 2018

Slide number 30 from Paul Connett presentation prepared for a talk at NZ Parliament buildings in February 2018. Continuing my critique of the presentation prepared by Paul Connett for his much-publicised meeting at Parliament Building in February. The meeting attracted only three MPs but his presentation is useful as it presents all the arguments anti-fluoride campaigners rely on at the … Read More

Why is it so difficult to get an open discussion on fluoridation? - Open Parachute

Ken Perrott Mar 22, 2018

Yes, I know – everyone’s mind is already made up so participants just talk past each other. People’s positions on this and similar issues have become a matter of identity – people are driven by emotions, not information. But, the information is there – and while I agree many people are driven by emotions they often attempt to use that information to … Read More

Black holes aren’t totally black, and other insights from Stephen Hawking’s groundbreaking work - Guest Work

Guest Work Mar 20, 2018

Christoph Adami, Michigan State University This article was originally published on The Conversation. Read the original article. Mathematical physicist and cosmologist Stephen Hawking was best known for his work exploring the relationship between black holes and quantum physics. A black hole is the remnant of a dying supermassive star that’s fallen into itself; these remnants contract … Read More

The technology that gave Stephen Hawking a voice should be accessible to all who need it - Guest Work

Guest Work Mar 19, 2018

Bronwyn Hemsley, University of Technology Sydney This article was originally published on The Conversation. Read the original article. Stephen Hawking was one of the most prominent people in history to use a high-tech communication aid known as augmentative and alternative communication (AAC). His death comes in the year of the 70th Anniversary of … Read More

How tattoos stay put thanks to a war with your immune system - Nano Girl

Michelle Dickinson Mar 16, 2018

Humans have marked their bodies with permanent tattoos for thousands of years to show off their social status, religious beliefs, declarations of love or just an appreciation of art.  For years tattoos were thought to stay in the skin because a dye was injected deep into the dermal layer of the skin staining the skin cells or fibroblasts located there.  … Read More