Thanks for the great content Professor. Somewhat off topic: Would you make a video telling us the story of John L. Leal and how he revolutionized public health with science, in the face of some of the toughest adversity for the time? Cheers from 🇨🇦.
I studied the basics of this waaaaaaaaay back in high school, but nowhere near in depth like this, so... here's this playlist, and here I am, so I might as well make sure I don't waste a day. 😉 Daddy told me when I was really young (6 or 7) that if I learned something, the day wasn't wasted. I've tried to make sure every day since to not waste a single day!
I've always had trouble with understanding the periodic table. Will have to watch the first 7 to catchup. Great breakdown of this though as it was easy to follow.
"Periodic" because the elements, as they get more massive, have recurring or periodic sets of chemical properties. So this set falls at the same point in the recurring set and, therefore, all have similar chemical properties.
Great coverage of the halides, Professor Dave. As I am a civil engineer with an environmental engineering background, I thought I'd add one other tidbit about fluoride that has been making lots of headlines in the environmental world lately. I'm talking about PFAS and PFOA, which you glanced on in this video as they are compounds found in, among many other things, teflon. Polyfluoroalkyl substances, or PFAS, as well as perfluorooctanoic acid, or PFOA, are present in many drinking water sources and are chronically toxic to human health in concentrations as low as a few dozen parts per trillion. If you've ever eaten something that was first cooked on a "non-stick" (think teflon) pan, then chances are quite high that you have some amount of PFAS in your system. Unfortunately, like so many other manmade substances that turn out to have long-term side-effects, PFAS and PFOA are compounds that are difficult to break down (through high heat, chemical, or biodegradation) and are readily absorbed into human tissue. For those who want to learn a bit more about PFAS and PFOA, start here: www.epa.gov/pfas/pfas-explained
Yeah, and those PFAs were already ubiquitous in most homes before the dangers were known. I did learn that birds couldn't be in or near a kitchen when a Teflon pan was being used or they could die, especially the smaller the bird is. That was when I started looking for a replacement for that particular non-stick coating, since I sometimes hatch eggs from everything from turkeys all the way down to Coturnix quail, and that always made me nervous. Sadly, I haven't found a decent replacement other than really well-seasoned and well taken-care-of cast iron cookware, but their weight makes them really difficult for me to handle, and just as difficult for my adult but disabled youngest son to handle, as well. Therefore, I'm stuck using it, or using glass or something similar that doesn't work as well as any nonstick coated cookware. Ugh!
@@MaryAnnNytowlceramic coating, you could probably look into how to do it yourself as well because they just don't last very long that's the big problem they work but they don't last.
The Halogens are my favorite element group, because I find it hilarious (though a bit scary) howuch the anti Fluoride crew misunderstand how they work. :p
Even though I have a Chemistry degree, it always amazes me that the Halogens are required for life but on their own can be some of the most toxic elements on earth.
@@ProfessorDaveExplains when i was 19 years old i do penis enlargment exersise by home made penis pump in 2012 and after some time with over pumping. I discover That i did not have erection by arousel or morning wood or spontenouse erection with lower erection quality and numbness. What happen to me i didn't get better or worest. I can have erection by masterbation. But i can not have intercourse even with good result from penile doppler but i can not have erection by arousel. Or by sexual imafination. I am lone without partener too i am now 31 years old. And i want to now the true of what happen to me can you explane it by your biology knowledges.
Could you please react to the last 15 minutes of “did dinosuars walk with man” from genesis apologetics because it has me really confused on where i stand, i would really appreciate it if you could explain it simply, thanks man love your vids. :)
What do you want to know? There is NO basis for YEC other than as an echo chamber for the literal "belief" of Genesis or other similar ancient texts. There MANY other much older mythologies that are SO similar to Genesis that you have to be willfully blind not to see that Genesis is just a derivative of them with some embellishments. Realize that the Hebrew Torah, the Christian Old Testament, was not finally codified and that Yahweh wasn't finalized as a SINGLE god until after the "Babylonian" exile of the upper classes of Jewish people, about 500 BCE. And not ALL the Jews were taken to Babylon during this time though the bible doesn't say that. And that MONO theistic belief came from Zoroastrianism, which Darius the Great was, and it was he who let the Jews leave Babylon and go back to Palestine when he defeated Nebuchadnezzar. All of the older texts than that originally had a pantheon of gods, which was then modified to ONE god. So anyone who wants to maintain the "dinosaurs walked with men" is just ludicrously and willfully ignorant. Genesis is pure mythology.
This is an aside - take some time to learn about the Bible itself. People tend to think of it as a book, but it is really an anthology. Each book written at a different time, for a specific people. Genesis itself is an anthology. A collection of a multitude of stories about beginnings. It is often taught that it was written by Moses - and that is simply not true. That is why there are two creation stories that are different. To take its sacred stories of beginnings and treat them like factual history creates many of the problems such as you are trying to unravel. Always read with a lexicon. You’d be surprised at the inaccuracies in translation that you’ll find. And don’t let others dissuade you from your questions. Questioning scriptural teaches doesn’t mean you are “ losing your faith”.
![[LIVE] : ONE ลุมพินี 88 | คู่เอก "ป้อมเพชร vs อัสลามจอน"](http://i.ytimg.com/vi/1ZqTVVbMgbo/mqdefault.jpg)
🎶he knows a lot about the science stuff professor Dave explain 🎶
Thanks for the great content Professor. Somewhat off topic: Would you make a video telling us the story of John L. Leal and how he revolutionized public health with science, in the face of some of the toughest adversity for the time? Cheers from 🇨🇦.
Your methods of teaching, knowledge, and use of visual effects are outstanding. I will have my class watch the video. Thanks, Rick
MUHS Science, Iowa
I studied the basics of this waaaaaaaaay back in high school, but nowhere near in depth like this, so... here's this playlist, and here I am, so I might as well make sure I don't waste a day. 😉 Daddy told me when I was really young (6 or 7) that if I learned something, the day wasn't wasted. I've tried to make sure every day since to not waste a single day!
I've always had trouble with understanding the periodic table. Will have to watch the first 7 to catchup. Great breakdown of this though as it was easy to follow.
"Periodic" because the elements, as they get more massive, have recurring or periodic sets of chemical properties. So this set falls at the same point in the recurring set and, therefore, all have similar chemical properties.
Great coverage of the halides, Professor Dave. As I am a civil engineer with an environmental engineering background, I thought I'd add one other tidbit about fluoride that has been making lots of headlines in the environmental world lately. I'm talking about PFAS and PFOA, which you glanced on in this video as they are compounds found in, among many other things, teflon. Polyfluoroalkyl substances, or PFAS, as well as perfluorooctanoic acid, or PFOA, are present in many drinking water sources and are chronically toxic to human health in concentrations as low as a few dozen parts per trillion. If you've ever eaten something that was first cooked on a "non-stick" (think teflon) pan, then chances are quite high that you have some amount of PFAS in your system. Unfortunately, like so many other manmade substances that turn out to have long-term side-effects, PFAS and PFOA are compounds that are difficult to break down (through high heat, chemical, or biodegradation) and are readily absorbed into human tissue.
For those who want to learn a bit more about PFAS and PFOA, start here: www.epa.gov/pfas/pfas-explained
Yeah, and those PFAs were already ubiquitous in most homes before the dangers were known. I did learn that birds couldn't be in or near a kitchen when a Teflon pan was being used or they could die, especially the smaller the bird is. That was when I started looking for a replacement for that particular non-stick coating, since I sometimes hatch eggs from everything from turkeys all the way down to Coturnix quail, and that always made me nervous.
Sadly, I haven't found a decent replacement other than really well-seasoned and well taken-care-of cast iron cookware, but their weight makes them really difficult for me to handle, and just as difficult for my adult but disabled youngest son to handle, as well. Therefore, I'm stuck using it, or using glass or something similar that doesn't work as well as any nonstick coated cookware. Ugh!
@@MaryAnnNytowlceramic coating, you could probably look into how to do it yourself as well because they just don't last very long that's the big problem they work but they don't last.
Thanks for your help to understand this concept
Fluorides make beautiful glasses for optical applications from UV to mid-IR. ❤️
#number 1 science TH-camr
Yay, more chemistry videos!
Would it be possible for you to make a computer science playlist?
Last time I paid attention to this Tennessine didn't exist 😂
Halfway through the video: “I have no idea what any of this means”
At the end of the video: “I kind of know what all of this means”
The Halogens are my favorite element group, because I find it hilarious (though a bit scary) howuch the anti Fluoride crew misunderstand how they work. :p
Mentioned as Tn in description go through it
Even though I have a Chemistry degree, it always amazes me that the Halogens are required for life but on their own can be some of the most toxic elements on earth.
One of the few things I remember from college. I specifically remember thinking that thought and then studying low grade food and how horrific it is.
@Professor Dave it'd be good to put this series as a play list so people can just watch over and over until we memorize it
It's in the inorganic chemistry playlist.
@@ProfessorDaveExplains cool thanks professor Dave
@@ProfessorDaveExplains when i was 19 years old i do penis enlargment exersise by home made penis pump in 2012 and after some time with over pumping. I discover That i did not have erection by arousel or morning wood or spontenouse erection with lower erection quality and numbness. What happen to me i didn't get better or worest. I can have erection by masterbation. But i can not have intercourse even with good result from penile doppler but i can not have erection by arousel. Or by sexual imafination. I am lone without partener too i am now 31 years old. And i want to now the true of what happen to me can you explane it by your biology knowledges.
Everything is categorized into playlist even the debunked ones which are under miscellaneous, yes im a fan and prof dave is my hero
Thnkew so much professor 🙏
I always find it weird that in the US we say io-DINE and not io-DEEN like the rest of the halogens. It sticks out like a sore thumb
flore-EEN
klore-EEN
aiyo-DYNE
bro-MEAN
My chemistry teacher would say "aSTATin"
thanks
Tennessine isnt tn. Its ts
Halogens?
I ate some "Halogen Mushrooms" one time.
Man.
I tripped for hours.
Time to get really salty
Having received my undergraduate degree in chemistry it is embarrassing how little I recall 😅
hm
Could you please react to the last 15 minutes of “did dinosuars walk with man” from genesis apologetics because it has me really confused on where i stand, i would really appreciate it if you could explain it simply, thanks man love your vids. :)
What do you want to know? There is NO basis for YEC other than as an echo chamber for the literal "belief" of Genesis or other similar ancient texts. There MANY other much older mythologies that are SO similar to Genesis that you have to be willfully blind not to see that Genesis is just a derivative of them with some embellishments. Realize that the Hebrew Torah, the Christian Old Testament, was not finally codified and that Yahweh wasn't finalized as a SINGLE god until after the "Babylonian" exile of the upper classes of Jewish people, about 500 BCE. And not ALL the Jews were taken to Babylon during this time though the bible doesn't say that. And that MONO theistic belief came from Zoroastrianism, which Darius the Great was, and it was he who let the Jews leave Babylon and go back to Palestine when he defeated Nebuchadnezzar. All of the older texts than that originally had a pantheon of gods, which was then modified to ONE god. So anyone who wants to maintain the "dinosaurs walked with men" is just ludicrously and willfully ignorant. Genesis is pure mythology.
I've ran into their content a while ago. Fair to say I lost braincells over it.
@@rickkwitkoski1976 thanks man, appreciate you for taking your time to right that all :)
This is an aside - take some time to learn about the Bible itself. People tend to think of it as a book, but it is really an anthology. Each book written at a different time, for a specific people. Genesis itself is an anthology. A collection of a multitude of stories about beginnings. It is often taught that it was written by Moses - and that is simply not true. That is why there are two creation stories that are different. To take its sacred stories of beginnings and treat them like factual history creates many of the problems such as you are trying to unravel. Always read with a lexicon. You’d be surprised at the inaccuracies in translation that you’ll find. And don’t let others dissuade you from your questions. Questioning scriptural teaches doesn’t mean you are “ losing your faith”.
🙏😌
😊👏
1st! Hello!
G'day.
So you didn’t come to learn?
👋
🏆
🎹🎶🎶
K