![Radioactivity: Etymology/History and Physics [CC]](https://i3.ytimg.com/vi/7v5bYFv6Cfk/maxresdefault.jpg)
Radioactivity: Etymology/History and Physics [CC]
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Date: 2022-12-27
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Comments and reviews: 20
education
I'm almost two years late, so maybe you've since learned these things, but I've got some pronunciation advice.
German:
>In German is pronounced like an English long E, as in cookie or chief, but never as in die.
>German is often pronounced as /z/ (a thing English does too. A single before a vowel (so not at the end of the word or before a consonant) is read as /z/
>The easy way to remember both of these is by thinking of a German name you probably didn't know you know: Diesel
As an aside, the long I sound is written as in German, think like Einstein (INE-shtine. EI = I while IE = E. It's kind of the opposite of English; when it comes to words with we read see, and lots of words use for long I (die, lie, cries, flies, ties, etc, although we do have words like chief, achieve, grief too.
French:
> I actually know a lot less about French pronunciation, but one thing I do know is that you never pronounce an at the beginning of a word. Think like the English words: honor, herb (unless you're British, honest, hour. All of these come from French and thus do the same thing of dropping the /h/ at the beginning.
> Thus, Henri should be pronounced more like enri, except I also happen to know this name, having heard it many times, and know that the is not like an English E, but rather more like uh. Henri is more like unRI.
>Obviously, I wouldn't expect you to do the French R-sound correctly. The same goes for German. English R is good enough.
I hope this info will help you not fumble new names as they come up in your videos. If you understand how these languages use the alphabet differently, you don't have look them up or make silly guesses based on your own English understanding of the Alphabet.
reply
I'm almost two years late, so maybe you've since learned these things, but I've got some pronunciation advice.
German:
>In German is pronounced like an English long E, as in cookie or chief, but never as in die.
>German is often pronounced as /z/ (a thing English does too. A single before a vowel (so not at the end of the word or before a consonant) is read as /z/
>The easy way to remember both of these is by thinking of a German name you probably didn't know you know: Diesel
As an aside, the long I sound is written as in German, think like Einstein (INE-shtine. EI = I while IE = E. It's kind of the opposite of English; when it comes to words with we read see, and lots of words use for long I (die, lie, cries, flies, ties, etc, although we do have words like chief, achieve, grief too.
French:
> I actually know a lot less about French pronunciation, but one thing I do know is that you never pronounce an at the beginning of a word. Think like the English words: honor, herb (unless you're British, honest, hour. All of these come from French and thus do the same thing of dropping the /h/ at the beginning.
> Thus, Henri should be pronounced more like enri, except I also happen to know this name, having heard it many times, and know that the is not like an English E, but rather more like uh. Henri is more like unRI.
>Obviously, I wouldn't expect you to do the French R-sound correctly. The same goes for German. English R is good enough.
I hope this info will help you not fumble new names as they come up in your videos. If you understand how these languages use the alphabet differently, you don't have look them up or make silly guesses based on your own English understanding of the Alphabet.
reply
education
Given that you put etymology in the title, it was disappointing to me that you didn't actually talk about the etymology that much. Thus I want to give more detail here:
radi, as in radio, radiation, all come from Latin radius. You probably have an idea of what radius means from mathematics, the radius of a circle right? Radial means going out from a center, like radii of a circle, like rays of the sun. hmm. like spokes of a wheel.
Sure enough, a radius is originally not an abstract mathematical word, but an ordinary one. It meant the spoke of a wheel. From that meaning, it came to metaphorically mean a ray of light, bursting out from the axle of the sun. Ray. hmm, that word again; there's something interesting about it, isn't there? It kinds of sounds like radi doesn't it?
Aha! Ray is the French descendent of the Latin word radius. Rays are things shooting out from a central source, like light from the sun, like spokes from an axle. Radiation is just a more Latinate way of saying rays.
That is the etymology! That's the reason radio/ radiation was chosen to describe these different ray phenomenon.
reply
Given that you put etymology in the title, it was disappointing to me that you didn't actually talk about the etymology that much. Thus I want to give more detail here:
radi, as in radio, radiation, all come from Latin radius. You probably have an idea of what radius means from mathematics, the radius of a circle right? Radial means going out from a center, like radii of a circle, like rays of the sun. hmm. like spokes of a wheel.
Sure enough, a radius is originally not an abstract mathematical word, but an ordinary one. It meant the spoke of a wheel. From that meaning, it came to metaphorically mean a ray of light, bursting out from the axle of the sun. Ray. hmm, that word again; there's something interesting about it, isn't there? It kinds of sounds like radi doesn't it?
Aha! Ray is the French descendent of the Latin word radius. Rays are things shooting out from a central source, like light from the sun, like spokes from an axle. Radiation is just a more Latinate way of saying rays.
That is the etymology! That's the reason radio/ radiation was chosen to describe these different ray phenomenon.
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Rusics
Hello Kathy! I love that you also love physics and history: ) I am actually intrested in physics and I want to understand it thoroughly and what I think is I ought to also go through how the concepts were developed so that I can be clear what the world has an understanding about that concept. You know what I mean Understanding the concept from beginning
I am a high school student and enthusiastic for physics. So I do want to search for relevant history of concepts so would you mind helping me with that?
I have watched your videos and your information is perfect. I loved them.
reply
Hello Kathy! I love that you also love physics and history: ) I am actually intrested in physics and I want to understand it thoroughly and what I think is I ought to also go through how the concepts were developed so that I can be clear what the world has an understanding about that concept. You know what I mean Understanding the concept from beginning
I am a high school student and enthusiastic for physics. So I do want to search for relevant history of concepts so would you mind helping me with that?
I have watched your videos and your information is perfect. I loved them.
reply
Robert
Interesting, but doesn't get at the root of the etymology (which, BTW, has nothing to do with radix in the sense of root) of radio. The way I explained it to my students is to think of the radius of a sphere. A sphere has radii extending from the center in all directions. This is the characteristic of radiation: emission from a point in all directions. We refer to radiation in other contexts, too, as when the pain of a heart attack radiates from there into the arm, for instance.
reply
Interesting, but doesn't get at the root of the etymology (which, BTW, has nothing to do with radix in the sense of root) of radio. The way I explained it to my students is to think of the radius of a sphere. A sphere has radii extending from the center in all directions. This is the characteristic of radiation: emission from a point in all directions. We refer to radiation in other contexts, too, as when the pain of a heart attack radiates from there into the arm, for instance.
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SoosV
In the elliptical orbit of planets we apply the standard elliptical equation. Is there history on this subject on the differences of Ovals, Egg Curves, Conic Sections, and ellipses. I had a calk text book describe all as ellipses and gave only one math equation. I have never seen an equation for an egg, or conical ellipse. Something I have never been able to ferret out but not sure it would make a good topic.
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In the elliptical orbit of planets we apply the standard elliptical equation. Is there history on this subject on the differences of Ovals, Egg Curves, Conic Sections, and ellipses. I had a calk text book describe all as ellipses and gave only one math equation. I have never seen an equation for an egg, or conical ellipse. Something I have never been able to ferret out but not sure it would make a good topic.
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Sadiq
So Marie was the first woman to win a Physics Nobel, and this year we had only the 4th, with Andrea Ghez for her work on the super-massive black hole in the centre of or galaxy. I have been meaning to get hold of a copy of Curie's thesis. I have read the story many times as it has been retold, but I had never noticed the Gamma Ray bit. That really needs to be more widely known. Another excellent video.
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So Marie was the first woman to win a Physics Nobel, and this year we had only the 4th, with Andrea Ghez for her work on the super-massive black hole in the centre of or galaxy. I have been meaning to get hold of a copy of Curie's thesis. I have read the story many times as it has been retold, but I had never noticed the Gamma Ray bit. That really needs to be more widely known. Another excellent video.
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George
Marie was offered three possible PhD projects, two of which were about x-rays which had only recently been discovered and were the most popular choice of research topic. Fortunately (for us) she chose the more puzzling one suggested by Henri Becquerel about the mysterious uranium rays as he called them. The first woman to receive the Nobel Prize and the only person ever to have received two!
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Marie was offered three possible PhD projects, two of which were about x-rays which had only recently been discovered and were the most popular choice of research topic. Fortunately (for us) she chose the more puzzling one suggested by Henri Becquerel about the mysterious uranium rays as he called them. The first woman to receive the Nobel Prize and the only person ever to have received two!
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Robert
Excellent work. Your presentations mix good science with insight into the personalities of all the many players. Science is the thinking of people and no one thinks alone. Your offerings display the ecology of scientific progress. I have read that M Curie was thinking of the radial spokes of a wagon wheel to express the omnidirectional nature of her minerals emanations.
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Excellent work. Your presentations mix good science with insight into the personalities of all the many players. Science is the thinking of people and no one thinks alone. Your offerings display the ecology of scientific progress. I have read that M Curie was thinking of the radial spokes of a wagon wheel to express the omnidirectional nature of her minerals emanations.
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Kevin
Re: 10: 56 Giesel's death from lung cancer
No doubt Giesel was exposed to all manner of dangerous airborne radioactive aerosols in the course of his work, but his lung cancer is certainly consistent with exposure to radium-226's progeny -- the noble gas radon-222 and especially radon's short-lived progeny, polonium-218 and polonium-214.
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Re: 10: 56 Giesel's death from lung cancer
No doubt Giesel was exposed to all manner of dangerous airborne radioactive aerosols in the course of his work, but his lung cancer is certainly consistent with exposure to radium-226's progeny -- the noble gas radon-222 and especially radon's short-lived progeny, polonium-218 and polonium-214.
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Robin
I was born in 1953.
And I've never understood this Great Divide, the gape, so to speak between the basic Equality of all human beings. Not just the MALE/Female division.
It is still, to me, incomprehensible!
So proud of her husband! Refusing to let his wife's incredible contribution to be forgotten.
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I was born in 1953.
And I've never understood this Great Divide, the gape, so to speak between the basic Equality of all human beings. Not just the MALE/Female division.
It is still, to me, incomprehensible!
So proud of her husband! Refusing to let his wife's incredible contribution to be forgotten.
reply
NicleT
What a great research.
I know I commented this awhile ago in another video of yours, but at the 1903 Nobels ceremony in Geneva, there was no chair for Marie Curie, but only for Pierre (and the other men, so she had to stood behind Pierre.
Anyway, cant wait for your next video.
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What a great research.
I know I commented this awhile ago in another video of yours, but at the 1903 Nobels ceremony in Geneva, there was no chair for Marie Curie, but only for Pierre (and the other men, so she had to stood behind Pierre.
Anyway, cant wait for your next video.
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spring
Ms. Kathy, If I only had a science teacher like you back in my high school days science would've been more interesting and I might have become a scientist. You make it more interesting to learn science. Your the best
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Ms. Kathy, If I only had a science teacher like you back in my high school days science would've been more interesting and I might have become a scientist. You make it more interesting to learn science. Your the best
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Richard
Wow Kathy, is amazing at this. Now more than ever we need skilled science communicators, and I'm very happy to have found another one. I'm sure in some way she will help inspire the new generation.
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Wow Kathy, is amazing at this. Now more than ever we need skilled science communicators, and I'm very happy to have found another one. I'm sure in some way she will help inspire the new generation.
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Ace
Marie Curie was an early heroine of mine - a woman scientist who had done something FAMOUS (even though it eventually killed her. I wanted to emulate her when I grew up. Didn't happen
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Marie Curie was an early heroine of mine - a woman scientist who had done something FAMOUS (even though it eventually killed her. I wanted to emulate her when I grew up. Didn't happen
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n2201
Please can you make a video about the myth or truth in first nuclear reactor could have been uranium or thorium based but was based on uranium to build the atom bomb during WW2
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Please can you make a video about the myth or truth in first nuclear reactor could have been uranium or thorium based but was based on uranium to build the atom bomb during WW2
reply
Chuck
I am captivated by every video you make. your wonderful way you present them and the joy you have doing it is infectious and i learn a great deal. Thank you!
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I am captivated by every video you make. your wonderful way you present them and the joy you have doing it is infectious and i learn a great deal. Thank you!
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Lawrence
FYI I have taken radiation safety training which describes both of the radioactivity units Becquerel and the Curie and their mathematical relationship.
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FYI I have taken radiation safety training which describes both of the radioactivity units Becquerel and the Curie and their mathematical relationship.
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AMIT
Wow!
I knew it in my mind that someday You will surely make Vidoe on this topic of Why Name Radioactive.
Thanks, Madam.
Keep Going.
reply
Wow!
I knew it in my mind that someday You will surely make Vidoe on this topic of Why Name Radioactive.
Thanks, Madam.
Keep Going.
reply
Efstathios
Even today Maria's cookbook, her notes are still radioactive. She is buried in a lead coffin because her remains were a radiation risk
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Even today Maria's cookbook, her notes are still radioactive. She is buried in a lead coffin because her remains were a radiation risk
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joao
could you indicate any sources that show that the radium burns didn't hurt? it doesn't makes much sense to me why that is. Thank you
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could you indicate any sources that show that the radium burns didn't hurt? it doesn't makes much sense to me why that is. Thank you
reply
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