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Articles by Timothy Schmidt
Mineral vs chemical sunscreens? Science shows the difference is smaller than you think Original
“Mineral-only” sunscreens are making huge inroads into the sunscreen market, driven by fears of “chemicals”, a belief that “mineral” products are inherently safer, and confusion about how sunscreens actually protect our skin. How mineral sunscreens actually work is not widely understood, and neither is what’s actually in them. We tested ten of these sunscreens in the lab and reviewed the ingredient lists of over 100 more to clarify what’s going on.
New Evidence Reveals Unexpected Origins of Horse Domestication
Across human history, no single animal has had a deeper impact on human societies than the horse. But when and how people domesticated horses has been an ongoing scientific mystery. Half a million years ago or more, early human ancestors hunted horses with wooden spears, the very first weapons, and used their bones for early tools.
What causes the different colours of the aurora? An expert explains the electric rainbow
Last week, a huge solar flare sent a wave of energetic particles from the Sun surging out through space. Over the weekend, the wave reached Earth, and people around the world enjoyed the sight of unusually vivid aurora in both hemispheres. While the aurora is normally only visible close to the poles, this weekend it was spotted as far south as Hawaii in the northern hemisphere, and as far north as Mackay in the south.
Think all chemicals are bad? From our food to your phone, modern life relies on them
The icebreaker of many a barbeque conversation is something like “what do you do for a crust?” “I teach chemistry at university,” is what we usually reply. Then silence. Our new friend will usually go on to say they either hated or did terribly in chemistry at school. Or, depending on what’s been in the news lately, they might start talking about parabens in shampoo, or BPA in plastic poisoning our dogs, or the “forever chemicals” PFAS in everything.
Don't fall for the snake oil claims of 'structured water'. A chemist explains why it's nonsense
Tue Aug 9 Written by Timothy Schmidt, Professor of Chemistry, UNSW Sydney Is there a “fourth phase of water”? From time to time you might see people talking up the health benefits of so-called hexagonal water, or structured water, or exclusion-zone (EZ) water. A few weeks ago Kourtney Kardashian’s Poosh website was spruiking a US$2,500 “structured water filter”.
Don’t fall for the snake oil claims of ‘structured water’. A chemist explains why it’s nonsense
Is there a “fourth phase of water”? From time to time you might see people talking up the health benefits of so-called hexagonal water, or structured water, or exclusion-zone (EZ) water. A few weeks ago Kourtney Kardashian’s Poosh website was spruiking a US$2,500 “structured water filter”. Last weekend even Australia’s Sydney Morning Herald got in on the act, running a now-deleted story on the virtues of “structured water”. So what’s going on?
'Structured Water' Is Not What People Claim. Don't Believe The Hype, Scientist Says
Is there a "fourth phase of water"? From time to time you might see people talking up the health benefits of so-called hexagonal water, or structured water, or exclusion-zone (EZ) water. A few weeks ago Kourtney Kardashian's Poosh website was spruiking a US$2,500 "structured water filter". Last weekend even Australia's Sydney Morning Herald got in on the act, running a now-deleted story on the virtues of "structured water". So what's going on?
Is ‘structured water’ better for your health? A chemist explains why the claim is nonsense
Is there a “fourth phase of water”? From time to time you might see people talking up the health benefits of so-called hexagonal water, or structured water, or exclusion-zone water. A few weeks ago Kourtney Kardashian’s Poosh website was spruiking a US$2,500 “structured water filter”. Last weekend even Australia’s Sydney Morning Herald got in on the act, running a now-deleted story on the virtues of “structured water”. So what’s going on?
Don't fall for the snake oil claims of 'structured water.' A chemist explains why it's nonsense Original
Is there a "fourth phase of water"? From time to time you might see people talking up the health benefits of so-called hexagonal water, or structured water, or exclusion-zone (EZ) water. A few weeks ago Kourtney Kardashian's Poosh website was spruiking a US$2,500 "structured water filter." Last weekend even Australia's Sydney Morning Herald got in on the act, running a now-deleted story on the virtues of "structured water." So what's going on?
Don't fall for the snake oil claims of 'structured water'. A chemist explains why it's nonsense Original
Is there a “fourth phase of water”? From time to time you might see people talking up the health benefits of so-called hexagonal water, or structured water, or exclusion-zone (EZ) water. A few weeks ago Kourtney Kardashian’s Poosh website was spruiking a US$2,500 “structured water filter”. Last weekend even Australia’s Sydney Morning Herald got in on the act, running a now-deleted story on the virtues of “structured water”. So what’s going on?
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