FlattopMaker
FlattopMaker t1_jedc15a wrote
When the pH on the tooth surface becomes acidic, the enamel starts to demineralize so your tooth is more susceptible to bacteria. Fluoride in the mouth enhances remineralization of the enamel using the calcium and phosphate ions in the saliva. There's different sources of oral fluoride. Stannous fluoride in certain toothpaste gels sticks to the enamel surface. It's supposed to be stop bacterial proliferation > biofilm > plaque and kill bacteria. Sodium fluoride works better in a toothpaste because it is more abrasive.
In Europe there's biomimetic hydroxyapatite to create a new layer around teeth to harden the existing enamel so fluoride or lack thereof isn't as big a deal.
FlattopMaker t1_jeb8uc8 wrote
Reply to comment by Objective-Mirror2564 in The Brontë Sisters by carrotwhirl
The Tenant of Wildfell Hall is seriously underrated. I wish it was assigned to reading lists for schoolwork.
FlattopMaker t1_je5yl0c wrote
what is required for mankind to harness and store energy from hurricanes?
FlattopMaker t1_je5yapj wrote
Is there an efficient and effective way to trap various greenhouse gases in manmade building structures?
FlattopMaker t1_je5lz7u wrote
2x faster performance with 50% less memory usage would be nice to have.
Interesting that in 2023 when software has half-eaten civliisation Microsoft is described as "the software colossus".
FlattopMaker t1_je5cjyl wrote
Are there any types of rocks that do not eventually turn into sand?
FlattopMaker t1_je5275q wrote
Reply to comment by Toy_Guy_in_MO in TIL that children born earlier in the academic year have a higher chance of participating in upper echelons of sports or academia. This is known as the Relative Age Effect. by ThatFaultyGamer
> For instance, my wife and I both graduated the same year. However, I'm 11 months older than her, because the cut-off in the state she's from was different than the state I'm from. So she, at almost a year younger, started school a year earlier than I did. One of my best friends in school moved to my school at the end of grade school, from out of state. He was in our class because the cut-off in his home state was earlier than our state. He's two months older than I, and a full year and a month older than my wife. So that's three different people, with wildly different birthdates, all in the same class. And at the younger ages, especially kindergarten and first or second grade, even a couple of months makes a huge difference in mental capacity for a child.
This. The grade one is assigned to is a system carried over from the 1800s and does not reflect what we know of child and brain development today, or critical social and physical development needs to realize every child's potential.
FlattopMaker t1_je3afgn wrote
Reply to comment by Asha_Brea in Book Adaptations: Let's Complain or Compliment Together by El_And_Rose
This film has everything I enjoy, just the right balance of deep thinking, humour, character development, mystery, wisdom, self-reflection, beautiful music, historic and beautiful location shooting. ...and it basically shares the title and the character names with the (compiled serials) book!
FlattopMaker t1_je1pw7v wrote
Reply to comment by mytrickytrick in TIL the majority of ancient Greeks and Romans that were literate read out loud. Reasons for this include a lack of space between letters and no formalized system of punctuation that helped with pauses in reading. by Ask_Me_If_Im_A_Horse
or your sibling reading that secret admirer note aloud for the 20th time?
FlattopMaker t1_je0tpy0 wrote
Reply to My problem with The John Wick Series by Edlover203
John Wick films minus 20 minutes that can be tacked on post credits as a gift to fans would hit the sweet spot
FlattopMaker t1_jdywcqn wrote
Reply to comment by razovor in Why are nonhuman erect bipedal animals so rare? by violetmammal4694
No other creature in the fossil record or recorded alive at any point in time can throw like a human and fashion tools to throw like a human with that curved and fragile radius and fragile shoulder held together by ligaments and tendons. It's not just the standing and the walking, the back pain, and the twisting foetus for birthing - the tool use outweighed the disadvantages. Cave guys standing up and bumping in to the stone shelf to grab the good cave drawing soot cursed but kept the verticality.
FlattopMaker t1_jdyjvgw wrote
Reply to comment by the_hell_you_say in TIL that octopuses have three hearts and blue blood by real_aurora_cole
only when the haemocyanin is bleeding out...or it's an octograsshopper (try fiinding a pesticide for *that* one)
FlattopMaker t1_jdyi2oh wrote
I only learned this thanks to Google when I was learning about how we use horseshoe crab blue blood to test that IV drugs and implants are hygenic enough for human use.
FlattopMaker t1_jdy9bnj wrote
Reply to comment by garret126 in TIL that the EU forces soda makers to introduce tethered caps to make sure they are being recycled. by memeiel
commercialize those fungi that eat plastics
FlattopMaker t1_jdtyaf7 wrote
Reply to comment by BreakintotheTrees in 'John Wick' Changed Movies Forever by PooPooRichardson
Gun fu is new to films because it has only been around since the 80s, and popularized in the west through The Matrix franchise.
FlattopMaker t1_jdtqmfz wrote
Reply to 'John Wick' Changed Movies Forever by PooPooRichardson
Gun Fu is a new style and type of filmmaking, and in that sense the genre has changed filmmaking and movies. John Wick happens to be at the forefront of Gun Fu. I get the writer and editor had an assignment to promote John Wick 4, but they should've picked different content to do that because the article actually does Gun Fu as a genre a disservice. I don't find the John Wick world-building to be that deep even taking into consideration the upcoming spinoffs, unlike Guillermo del Toro's stuff, LoTR, Harry Potter, etc.
FlattopMaker t1_jdt9cmi wrote
Reply to comment by zanderkerbal in Around 550 million years ago the earth's magnetic field almost collapsed, but then strengthened a few million years later. Scientists say this may have been due to the formation of the inner core. But why exactly would that cause the magnetic field to get stronger? by somethingX
The magnetic field both causes and impacts the rate and most development as evidenced by magnetosomes in the fossil record and organisms today. Some species exhibit greater function in hypomagnetic conditions, and may have evolutionary impact when combined with known mutagenic effects of radiation exposure. We don't have known mechanism of action identified yet for the HMF (hypomagnetic field) theory and observations. Link to a review of speculations about causes and effects relating the magnetic field to the Cambrian explosion.
FlattopMaker t1_jdppqhu wrote
Reply to What are your thoughts on AI content? I'm so blown away and want to fill my Kindle with it by [deleted]
Publishing: my current view is stratified text ['AI' and 'content' can mean many things so I prefer not to use the terms due to very different understandings] can be published and sold by a software company or an influencer or any individual under a different and new cataloguing system other than ISBNs and ISSNs, such as an expanded Digital Object Identifier (DOI). Copyright laws require urgent review to account for digitization and stratified text.
Rationale: It was once the fashion (and it has become fashionable again) to publish semi-fiction mashups that consist of excerpts of already published works compiled with critique and fiction narration. To be clear, these mashups are not anthologies or collected works but it a literal mashup of different published works with text added. Some will say what does it matter whether it was created through a typewriter, a Word processor, an AI or other tool, as long as the final product is enjoyed by the intended audience? The difference is that organic human folklore and cultural change and part of human evolution and humans connecting to other humans. Stratified text is human-authorized but should not be claimed to represent human culture.
FlattopMaker t1_jdpl1o2 wrote
Reply to comment by FlattopMaker in If sites like Karahan Tepe could date to potentially 12,000 years ago, where inhabitants where hunter gatherers (with maybe minimal early agriculture) and pre-pottery. Then why don't we see anything 15k, 30k, 50k, or even 100k years back? by LevHB
Replying to my earlier post because the we-can't-see-the-decayed-structures-that-were-made-from-trees is speculation extrapolated from history. Greeks started out with temples made of trees. The vertical lines/grooves of the stylized marble columns we are left with were made to mimic tree trunks. The Egyptians started out with leather and chests for crypt or burial funerary goods made from real animal hides and real wood. As materials became more scarce, faux leather was used and wood grain-like grooves made from woven reeds for the chests that we're left with.
FlattopMaker t1_jdpj6bs wrote
Reply to comment by [deleted] in If sites like Karahan Tepe could date to potentially 12,000 years ago, where inhabitants where hunter gatherers (with maybe minimal early agriculture) and pre-pottery. Then why don't we see anything 15k, 30k, 50k, or even 100k years back? by LevHB
Larger groups of people to create and cooperatively share or use the built environment, yes. This requires communication of a certain mutual sophistication. But it does not mean necessarily they were all living together, all the time. We have churches standing today that have taken hundreds of years to build from start to finish. This is even with dense populations, the technology, tools and know-how to construct it in a particular style. Many intervening events delayed the build.
What the changes were that led to larger cooperation, presumably over long spans of time across dozens of generations, are where historical record meets speculation. Some agroforestry researchers believe balanophagy (acorns as the main dietary source of calories and nutrients) declined as demand for trees for other uses became prevalent, which pushed the rise of the less-nutritive and more effortful agriculture. Numerous other options have been suggested. Perhaps structures were initially created from trees for thousands of years before megaliths became the norm.
FlattopMaker t1_jdo8ikm wrote
Reply to comment by Alarmed-Dog3184 in Simple Questions: March 25, 2023 by AutoModerator
Moving Architecture is available through used book websites. If your libraries don't have these perhaps you are able to review them through interlibrary loans.
FlattopMaker t1_jdl9c0d wrote
Reply to comment by 5btg in I hiked the Appalachian Trail in 2020 during Covid (2,200 Miles). Ask me anything by 5btg
Great story - you made it! That is an awesome part of being able to set an independent schedule on the safe AT compared to some other trails in the world. The Via Francigena is the same in that respect. I always appreciate the freedoms we have!
FlattopMaker t1_jdl7knj wrote
How did you keep track of time/days that passed? Did you keep any electronics charged?
FlattopMaker t1_jdl7f5b wrote
Did you get out to Mount Desert Island or Cumberland Island?
FlattopMaker t1_jedkrrw wrote
Reply to What book did you go into thinking you were going to dislike, but ended up loving? (And vice versa) by keep_it_trillani
expected to like: Ficciones and The Book of Sand by Jorge Luis Borges. I can't relate to the curiosity without obsession, but obsessive anyway approach. Didn't expect to not like abstract concepts and themes.
expected to dislike: Love in the Time of Cholera. Now I understand it.