Alpha Beta Gamma: History of Radioactivity [CC]

[@NicleT]

Thanks Kathy. As always, love your history researches. (May I ask what’s the painting behind you? Tx)

[@Kathy_Loves_Physics]

My parents bought it years ago and I have no idea, sorry

[@thomasgibson8025]

I am a CIH suddenly fascinated and plunging into the study of radiation. Your videos are addictive. Thank you so much for the anecdotal info and technical content.

[@rajibkudas123]

The best part of the video is it covers all the relevant events with reference to papers so that one can follow the developments with clear picture....so informative ...

[@ancienttech4603]

I'm so happy I found your videos! Learning dry facts is dull and doesn't stick in my head half as well as learning the how and why of scientific discoveries.

[@climbeverest]

Incredibly nice hand motions, we love it

[@shawnmulberry774]

It is hard to appreciate the amount of research the Curies had accomplished and how brilliant the work was when published. They were so good at describing observed phenomena and then sharing their relevant insights.

[@Kathy_Loves_Physics]

I can't get over how she rearranged her entire Ph.D. thesis with new information that she learned like 4 months earlier. Still blows my mind.

[@mattbartley2843]

As I understand it, Marie Curie is to this day the only person to earn Nobel prizes in two different fields of science: Physics and Chemistry. Her husband Pierre Curie shared the Physics Nobel with her, and later their daughter Irene and son-in-law Frederic earned Chemistry Nobel prizes.

[@bazsnell3178]

@@mattbartley2843 Wow!, just 'WOW'. Many thanks for that info. I'll be going to 'Google' research this amazing family and saving it amongst my Science Computer Archives.

[@pauljancenapplication-conc4487]

Watching your videos has become my hobby these days. There are so much details and information.

[@jamespowell1442]

Kathy,still with you,my grand children are still interested in science and you are a wonderful teacher!Keep up the good work!

[@Kathy_Loves_Physics]

Thanks for the compliment and so glad you can enjoy science history across the generations.

[@pixxelwizzard]

I have been devoting an inordinate amount of time to watching videos on KZbin about radiation. I swear, you made this video just for me because it answers A LOT of the burning questions I've been left with. My only complaint is that the video isn't 2 hours long. :P I enjoyed this immensely, thank you!

[@Kathy_Loves_Physics]

That’s so funny! And so glad I could help (check out my origin of radioactivity video too, might help). Anyway, if you want to watch me blather on for almost 2 hours you can check out my lecture to a science group in India. kzbin.info/www/bejne/bpTXqp6bos-qY8U

[@thomasgibson8025]

I agree with the length. We demand longer videos (lol).

[@j.dragon651]

I go to the radium store every day now. Boy the old days were rough. You do great videos, I am always entertained.

[@sathishb507]

Hi Kathy, I'm Sathish from Chennai,India aged 32.I just left my Bank job after working 10 yrs to pursue degree in school teaching job ( physics). I love physics and especially the way to teach is so fascinating . I wish i could be like u and express like u. Not all teachers teach like u with that much history and interest. Ur igniting the minds . Thank you and I'm ur fan

[@Kathy_Loves_Physics]

So nice to meet you Sathish, and congratulations on your brave change of profession. If you want any high school teaching advice I have a lot of ideas. Cheers and good luck. 👍

[@sathishb507]

Just yesterday i left job with good resignation farewell party. I'm really honoured and privileged to get your reply. Thanks and will surely get ur advice . Take care

[@nandakishore2082]

I am a high school chemistry faculty and I know how tough it's to connect the dots in history. You did it very systamatically. You're simply AWESOME maám. Thank you!

[@android01978]

Love what you’ve done here. So much information out there focuses on just one or two characters in the story. It’s great to see all the back and forth between them all

[@randymack2222]

I have always been interested in physics and chemistry, but your presentations add another level of color to the picture. Keep up the good work.

[@grberendzenproductions312]

I physics class in High School and in learning about electronics, I learned about a lot of the men you discuss, Volta, Ohm, Ampere, Galvani, Tesla, Edison, etc. but only learned a little about why things are named for them. I'm happily learning more in depth about them through your videos.

[@keybawd4023]

I had really no idea of the achievements of Rutherford. I knew that he discovered this and that, of course, but one forgets a name - but your biogs which turn a name into a person, illuminate what an incredible scientist he was. This is my second visit to this video and I don't hink it will be the last!

[@bobmiller7502]

we learn we love we live

[@brucewilliams6292]

I love the way you present things from a historical perspective; it makes learning much easier!

[@meow75714]

Maa'm your stories are the best. A great service to our understanding of evolution of physics. Please keep making more, and if you need any help, happy to do something for you.

[@jackspiker8234]

Wow, it is so nice when I find a new channel that does such an excellent job of telling historical science. I really like your perky and enthusiastic style of telling the story. Really a fantastic job! Thank you so much.

[@225rip]

So much work into this presentation! Thanks

[@Kathy_Loves_Physics]

Thanks. This one took me a while it’s true

[@JohnMcPhersonStrutt]

I am convalescing from a heavy cold. While doing so, I found myself binge watching KZbin, and thus discovered the Kathy Loves Physics & History channel. I am delighted to have done so ! ! 'Tis an ill wind................

[@Economistwa]

This channel has quickly become my favorite channel. I find myself humming eeelekrisity ... eeeellekricitee every now and then

[@markstewart9038]

Wonderful as usual, Kathy! I'm also glad that this one didn't make me cry like the Marie Curie video.

[@Kathy_Loves_Physics]

So glad you liked it, even without the crying ;)

[@willerwin3201]

I defended my dissertation about 6 months ago, and while I covered radiation history, it was more about the history of radiation health effects. This is an excellent rundown on the history of radiation itself; it makes me wish I had dived into these aspects of radiation history as well. Nicely done!

[@tomsadd9864]

Kathy, Christina and I throughly enjoyed your film. Please continue to bring light to the town of nowhere New Zealand. Much love, Dickens

[@ramonescaba4293]

it's fascinating to me having worked in a nuclear power plant for 25+ years and we always discuss all 3 types of penetrating radiation, great job knowing the history where it all started

[@JoeA1974]

Beautifully produced videos. You had me absolutely captivated. I think you are both entertaining and charismatic. What could be more fun than some fantastic moments in science history? I look forward to viewing several more. Thank you for sharing your enthusiasm for science and providing such excellent content.

[@seanbryant2848]

I discovered you today... your content is truly amazing, and I am going to be watching ALL your video presentations! You are amazing!

[@bazsnell3178]

Me too! Just came across it random and am now subscribed.

[@jimmyneql]

Wonderful lecture. Your enthusiasm is contagious!

[@wiregold8930]

"Radium for sale! Get your red-hot Radium here today!" It just blows my mind a pharmacy would have a sample offered. I wonder how much it sold for. Another great video Kathy.

[@alexanderscott9001]

U should see the story on the "radium girls" who actually brushed their teeth with radium infused toothpaste. Didn't turn out to well for them unfortunately...

[@simaocrispim8502]

Hello Kathy, kisses from Portugal! Your video has some of the best storytelling I have ever seen, it kept me awake and interested while learning a lot for my school project. You are a great teacher, byeee

[@kurtpena5462]

Really solid content that is very well-presented. Thanks Kathy!

[@Kathy_Loves_Physics]

Glad you liked it

[@OGCasualClicks]

wow, this video which summarised different researches is awesome. Thanks for this content. however at 16:15, i think there were 2 coworkers i.e H.Geiger and E.Marsden. i may be wrong though

[@Kathy_Loves_Physics]

Marsden was the young undergrad that Geiger was looking for a project for. According to Rutherford, Geiger was the one who came back and said that Marsten found that alpha particles bounce back sometimes. But you are right, both Geiger and Marsden were on the paper. Gave more details in the video about the discovery of the nucleus but I worried that this video had way too many people with way too many names.

[@OGCasualClicks]

@@Kathy_Loves_Physics thanks for clarification. Can't wait for next video

[@wesleydawe15]

Thank you Kathy for all the research you did resulting in this and other subjects.

[@glenmartin2437]

Thank you. I am a retired Ph.D. research scientist. Marie Solamae Sklodowska Curie and Pierre were boyhood heroes. Thank you for your research and videos.

[@hyperdrunk83]

Thank you very much! I've been looking forward to this video for a while and it did not disappoint! I have shared it with my students as well.

[@Kathy_Loves_Physics]

This one was a lot of work, don’t know why so it took me an inordinate amount of time. Glad you feel like it was worth the wait.

[@jsprite123]

Wow, you explained the difference between the 3 types of rays in the first 17 seconds! THANK YOU!!!! Many KZbinrs drag on and on to get the basic point.

[@AttilasWorkshop]

As soon as Kathy says 'Lets go' instant thumbs up.

[@robertfindley921]

I'm marching down all your videos. Wonderful. I learned some of this getting my electrical engineering degree, but forgot most. Kathy is a rock star!

[@erichodge567]

This channel is golden, and so important, because although we learn in many ways, we live by stories.

[@Kathy_Loves_Physics]

I love that!!

[@ton146]

My grandfathers brothers were the first people to make X-ray tubes in the UK and all died of radiation poisoning. My grandfather was the electrician in the glass blowing company. ( GC Aimer and co ) ( still exists today ) My father was born before they started the X-ray tubes so i have been unaffected. My Dad died at 92 about nine years ago. Tony

[@albonyo]

We may never fully the sacrifices made by those who came before us,for the sake of human advancement

[@Boooommerang]

Thanks for so precious information

[@lwcdnman]

I really like your presentation style. It's great to find this great cache of videos I have not yet watched.

[@estoesplena101]

This was Great 👍🏾 your content is amazing. Your personality , voice, paste and the way you put things together is just wonderful. I truly appreciate what you're doing. THANK YOU! Pd. I can also feel how passionate you are about these topics. 🙌🏾

[@Kathy_Loves_Physics]

Thank you for the lovely comment. Cheers, Kathy

[@cortisolsoup]

this was absolutely fascinating to watch. hearing about marie curie and the rest of the gang being so excited about getting access to radioactive materials really put a pit in my stomach, though

[@williampowhida572]

What magic your hand motions have, and I love your teaching, too. Keep it up!

[@Scott-lz3pp]

Just discovered this gem; thank you so much! I am very interested in the history of radiation/radioactive materials. I am a semi-retired degreed and licensed nuclear engineer. Thanks again.

[@thoughtful_criticiser]

Fascinating history and very well told. Thank you Kathy.

[@glennsophie3235]

I've just started viewing your videos and love them. Informative and I feel that I'm understanding the principles.

[@Kathy_Loves_Physics]

So glad.

[@ratnamani8228]

Knowing how Dangerous these Substances are, doesn't give me the Satisfaction of Watching an Informative Video. Appreciate the Content. 👍

[@stephenfoster6940]

Another excellent video with great historical research and context by referring to primary sources. I have sought out some of the original publications as a result of watching your videos Kathy and have enjoyed reading the original papers. I wouldn't credit Rutherford with the "discovery" of the neutron (18:14) however. While it is true that he theorised the existence of the neutron, James Chadwick is credited with its discovery over a decade later. It's a bit like Pauli predicting the existence of the neutrino in beta decay, which was detected 25 years later by Reines and Cowan. Now there's an idea for another video. :-)

[@Kathy_Loves_Physics]

Good point I should’ve said Rutherford created the idea of neutrons not discovered neutrons. I didn’t mean it that way but sometimes it comes out slightly differently than I meant it.

[@ThiwankaWimalasuriya]

This is a great channel. Keep up the good work

[@SpinStar1956]

Excellent video, tying all these events and people together. To me, it makes it easier to remember when it is presented as a chronology rather than disparate facts. SUBSCRIBED!

[@stevenclarke5606]

Hi Kathy I have just started working my way through your videos, really interesting, informative and well presented.

[@RochelleM491]

If anyone is addicted to science (ie..me) .. this channel is a great drug of choice..lol! Good work.. keep the videos coming!

[@MrKidds]

Great thanks to your amazing works! Can't stop watching it all!

[@fromgermany271]

Hi Kathy, took me one video to become a fan. One remark: the German named having an sound „[a͜I]“ in, are written with „ei“ instead of „ie“. But I suppose it’s easier for English natives to speak it correctly with „ie“. In German that would be pronounced as a longer „e“.

[@dirkkruisheer]

Correct, it's pronounced *gayger* not *geeger,* and is spelled "Geiger."

[@yousufnazir8141]

Best explanation of radiation and the history of the series of the scientific discoveries

[@theklown7990]

What makes your videos so great, is your question, how do we know. Understanding their thought process is crucial to have an actual understanding for it. Its one thing for a textbook definition and a math problem, but if you can envision like they did to discover, then and only then do you truly understand.

[@yargonslavter]

I've leard here more than my entire time in school. Thanks Kathy, you're amazing!

[@thundercloud7850]

Fascinating. I really want to know more about radiation. Your enthusiasm for the subject is compelling as well. Thanks

[@shawnmulberry774]

Excellent work as usual. Thank you

[@Kathy_Loves_Physics]

Glad you liked it.

[@briancrabtree9317]

Wonderful job explaining these discoveries

[@krischurch5677]

Just wanted to say thank you and really enjoy your story telling :)

[@sunnyray7819]

Always interesting! Thanks for the great videos! I found your channel a few days ago on my feed. I am a big Tesla fan and it's great to learn more of the truth about him. I think he has been somewhat hyped but still a legend. Steinmetz is someone I have become more familiar the last year or two.. I am really looking forward to that video!

[@DanielMacao]

I enjoy your intensity , how you propagate your knowledge

[@lovinglife3847]

Absolutely love the content of your channel. Looking forward to learning more.

Really good intro into the topic for an average person, thanks! (Hint: the spelling of Friedrich Giesel changes within the video between Giesel and Geisel, and Friedrich and Friedrick. He was named Friedrich Giesel.)

[@nix-tube]

Nice to hear a video where not every little detail needs to be described to a lament.

[@eddshackley8134]

Brilliant video, will be using lots of the history and context with my classes

[@corradoborean]

You are great!! I like your channel. May I suggest you to slow down the pace a bit. You should give a little more details on each paragraph, with that the viewer will have more time to better grasp the story. For example, in this video you gave us a ton of great information that are not easy to digest in 20 minutes. Maybe, with a two part video of 20 minutes each, with the same content but more diluted, you give us more time to appreciate the whole story and your verve. This is only my opinion, keep going!!

[@ronaldroberts7221]

That color of top goes well with your skin tone. The color looks to be close to a wavelength of 505 nm, give or take.

[@wifightit]

Great video! Subscribed. Can't wait to watch the next one. :D

[@danielkaranja7978]

This is an astonishing channel!!

[@Kathy_Loves_Physics]

Thank you

[@madansharma2700]

Great video. Should be compulsory watching for every chemistry beginners.

[@hellstormllc1277]

All you videos are great!! On a different device I have two of your videos I'm watching and now this one just popped up on a new computer and I'm going to watch it.

[@Kathy_Loves_Physics]

Wow! No wonder my views are up ❤️

[@multibusa]

It never fails to baffle me how incredible the handful of people that were that were discovering all the aspects of electricity and magnetism etc especially considering many of these discoveries and experiments took place in the late 1800's. It almost seems to me like these guy's were a century ahead of their time. Even today, the vast majority of people including myself could not make these discoveries or have the wherewithal to carry out the many experiments that they did at the time. Not only were they carrying out said experiments, they were obviously inventing equipment on the fly to enable such experiments in the first place. A fair amount of the content of your videos takes me several watches to begin to understand much of these concepts. It just feels surreal knowing that people from a couple of centuries ago could so easily baffle me with science.

[@Ecotasia]

It was great to meet you a few days ago, the history of experiments and how science has figured things out.

[@Kathy_Loves_Physics]

So nice to meet you too

[@ronkirk5099]

I always enjoy these interesting videos on science history. Thanks.

[@jefffoster3557]

So I love your easy to follow way of teaching.....but how could you not have a vid on Philo Farnsworth yet???

[@mjnp61801]

You should definitely make a video about the Cavendish laboratory and its pivotal role in many of the discoveries related to our understanding of the structure of matter. What was their "secret sauce"?

[@byronfuentes1281]

Hi Kat Thanks for being so creative. I love that you mentioned the Greek God Helios! that must be how we named helium. U rock Kathy. I wonder if each empire’s gods could make love not war

[@markspc1]

Great show Kathy.

[@DazzlinGDemos]

Great video. The history makes the story

[@Kathy_Loves_Physics]

I am glad you liked it, and obviously I agree about the history

[@charleskramer6189]

Kathy is fantastic! Entertaining and clear and enthusiastic. And there are many forms of radiation (neutrinos, Cosmic Rays)... but isn't it more accurate to day there are FOUR major types of radiation? Alpha, Beta, Gamma, and *neutron*

[@brianmyers2667]

Hey Kathy! Love your informative science videos! Thanks for being so awesome! BKM. In Tn.

[@nurulhasan3953]

Literally, you have my pure gratitude from the very bottom of my heart for all the knowledge you giving us. I'm so fascinated as chemistry and physics lover to find myself even falling in love deeper and deeper into this zone. Upps, I didn't mention yet, now I am a history buff. Terima kasih. Salam hangat dari Indonesia.

[@Kathy_Loves_Physics]

Thank you for your kind words.

[@JasonPurkiss]

Im so glad I subscribed your history science stories are amazing thankyou

[@Kathy_Loves_Physics]

Thank you 😊

[@tyharness2527]

cant add anything thats not already said in the comment. Excellent as ever thank you

[@Kathy_Loves_Physics]

I always love a complement so thank you.

[@osmanali8352]

I’m so happy you’re doing good thanks love

[@Hopeless_and_Forlorn]

Whoa--at 18:15 you credit Rutherford with the discovery and naming of the neutron. I cannot find a single source that agrees with you. It is true that Rutherford foresaw many important discoveries that were later made by others, and that he proposed the existence of a neutral particle in the atomic nucleus in 1920, but Chadwick's work in 1932 conclusively demonstrated the existence of the particle and demonstrated its characteristics. Chadwick also named the newly discovered particle as the neutron that same year. Rutherford was not the type of man who would take credit for another person's discovery.

[@hafsabatool8895]

What a lovely person you are thanks for the video !!

[@johnishikawa2200]

Great detective story-the information comes fast and furious! I know just enough physics to enjoy this...nevertheless I'm gonna watch this one several times in order to digest it...the material is that fascinating!

[@David_Lloyd-Jones]

Gotta make up your mind, Kathy: in the graphics, is he Geisel or Giesel? "Guy-zell," which you ay, looks correct. "Ghee-zell," which half thee graphics spell out around 3:50, seems wrong. But I'm not sure. (And keep up the good work: I'm relearning a lot of stuff I forgot fifty years ago, so thanks!)

[@rajushanmugam4528]

You're the greatest teacher 👩‍🏫I ve ever seen. Love and support 👍from India🇮🇳🇮🇳

[@Kathy_Loves_Physics]

Thank you so much Raju! What a lovely complement.

[@MechaStreisand1]

I love your channel so much!

[@Kathy_Loves_Physics]

Thanks so much.

[@johnclayden1670]

Highly enjoyable as always.

[@jenniferbradshaw6704]

Amazing. You're a very engaging speaker.

[@Kathy_Loves_Physics]

Aww thanks

[@kevinbyrne4538]

8:25 -- In 1857 the French scientist Abel Niépce de Saint-Victor (1805 - 1870) discovered that uranium salts could expose photographic plates in the dark. By 1861, Niépce stated bluntly that uranium salts emitted some sort of invisible radiation. In 1868 Edmond Becquerel (father of Henri Becquerel) wrote a book -- La lumière: ses causes et ses effets (Light: its causes and its effects) -- in which he mentioned Niépce's findings.

[@glenmartin2437]

Just remembered - I read about Harriet Brooks born 1876 in Exeter, Canada. She was Rutherford's first graduate student. She is reputed to have discovered or identified Radon. She was inducted into the Canadian Science and Engineering Hall of Fame in 2002.

[@Kathy_Loves_Physics]

I talked about her a bit in my biography of Rutherford. She’s very interesting but then she gave up physics to get married which I found very sad (Rutherford found it sad too).

[@JimCallahanOrlando]

Last night it finally dawned on me the genius of your title for the series, "The Lightning Tamers". I was thinking about how in the late 1800s just before all these rays and particles were discovered, scientists were fairly smug about everything having been discovered. So, if there is some new energy lurking today it could either be completely invisible to us or manifest in a natural phenomenon. It then occured to me that electricity, before it was understood was manifested spectacularly in lightning. Hence, lightning = natural electricity; and the title "The Lightning Tamers" makes sense. We are taught so young that lightning is electricity (albeit discovered by Benjamin Franklin) that lightning was this ubiquitous, but in retrospect little understood natural phenomenon. For thousands of years (generations) humans had seen lightning, heard thunder and the occaisional lightning strike starting a fire; an enigmatic natural power that sometimes transmutates into fire!

[@geraldgibert6814]

here from buenos aires arg. love your videos an watched one with dave eevblog till the end