Tagged: Science

Maternal urinary fluoride/IQ study – an update - Open Parachute

Ken Perrott Sep 24, 2017

 The maternal urinary fluoride/IQ study  (Bashash et al., 2017) continues to get attention – but mainly from anti-fluoride organisations. The scientific community will evaluate the published report after giving it due consideration and there have already been criticisms. But anti-fluoride campaigners consider it the best thing since sliced bread. The Fluoride Action Network (FAN) describes it as … Read More

Facts about fluorosis – not a worry in New Zealand - Open Parachute

Ken Perrott Sep 20, 2017

A recent issue of the Fluoride Exposed Newsletter gives us the facts about dental fluorosis – a subject very often misrepresented by opponents of community water fluoridation. Ever notice how words ending with “-osis” sound a bit scary?  That’s because “-osis” is a suffix (from the Greek) commonly used to describe disorders or abnormal states. Tuberculosis, multiple sclerosis…no fun. Those … Read More

We need more post-publication peer review - Open Parachute

Ken Perrott Sep 18, 2017

We often tout peer review as the reason for accepting the veracity of published scientific studies? But how good is it really? Does it ever match the ideal picture people have of it? And what about peer review before and after publication – are we neglecting these important stages? Pre-publication peer review Here I mean the collective process of evaluating … Read More

Cassini plunges into Saturn tonight – a grand finale - Open Parachute

Ken Perrott Sep 15, 2017

After two decades in space, NASA’s Cassini spacecraft is nearing the end of its remarkable journey of exploration. Having expended almost every bit of the rocket propellant it carried to Saturn, operators are deliberately plunging Cassini into the planet to ensure Saturn’s moons will remain pristine for future exploration. Watch live coverage of Cassini’s end of mission on … Read More

Fluoridation not associated with ADHD – a myth put to rest - Open Parachute

Ken Perrott Sep 01, 2017

 The myth of community water fluoridation causing attention deficit hyperactivity disorder (ADHD) is just not supported by the data. I show this in a new paper accepted for publication in the British Dental Journal. This should remove any validity for the claims about ADHD by anti-fluoride campaigners. Mind you, I do not expect them to stop making those claims. The … Read More

When artists get involved in research, science benefits - Guest Work

Guest Work Aug 17, 2017

By Craig Stevens and Gabby O’Connor When artists and scientists get together, creative sparks can fly. Collaborative sci-art projects are increasingly popular and one obvious benefit is the greater visibility of the research through the artist’s work. Our project explored scientific and artistic aspects of Antarctic ice crystals. But what’s in it for the … Read More

Are fluoride researchers sacked for their findings? - Open Parachute

Ken Perrott Aug 11, 2017

Heard the one about the scientist who was doing excellent research but was sacked by her Institute because her discoveries shattered the prevailing “scientific orthodoxies?” Yes, it is a common claim. Often made by activists promoting conspiracy theories.  But it is an easy one to make and it is always worth checking the facts in such cases. Of course, the … Read More

Fluoridation and cancer - Open Parachute

Ken Perrott Aug 08, 2017

We all know the phrase “Lies, damned lies, and statistics.” If nothing else, this should warn us not to take on faith arguments which rely on statistical analysis for their credibility. Wikipedia uses this phrase to illustrate the “persuasive power of numbers, particularly the use of statistics to bolster weak arguments.” Yes, you have. And one lie is the claim that fluoridation causes … Read More

Local anti-fluoride activists tell porkies yet again - Open Parachute

Ken Perrott Aug 03, 2017

Well, I suppose that’s not news. A bit surprising, though, because they are claiming the absence of research on fluoridation and IQ – which sort of conflicts with the previous attempts to actually condemn and misrepresent the actual research on fluoridation and IQ. Fluoride Free NZ’s (FFNZ) face book page is claiming: Would you be interested to know that no studies … Read More

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