Veritasium - Season 2 Episode 3 : Cathode Rays Lead to Thomson's Model of the Atom

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Veritasium - Season 2 Episode 3

Veritasium 2011 -

Title: Veritasium - Season 2 Episode 3
Genre: Documentary, Reality, Talk
Country: United States of America
Studio: YouTube
Cast: Derek Muller
Crew:
Alternative Titles:
Keyword: technology, experiment, interview, demo, engineering, science

Overview:In the mid 1800's scientists successfully passed an electric current through a vacuum in a glass tube. They saw a glow from the tube that seemed to emanate from the negatively charged plate called the cathode. Since scientists didn't know what the glow was they called it a cathode ray. There was debate over whether the cathode ray was a wave phenomenon like light or a stream of negatively charged particles. JJ Thomson effectively resolved the debate in 1897 by performing a clever experiment that determined the charge to mass ratio of the particles making up the cathode ray. He also showed that this same particle was in all different cathode materials so it must be a constituent common to all atoms. This changed our understanding of the atom from the previous billiard ball model to Thomson's plum pudding model of the atom.

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First Air Date: Aug 15, 2010 Last Air date: Sep 30, 2024 Season: 15 Season Episode: 45 Episode Runtime: 15:20 minutes Quality: HD IMDb: 3 / 10 by 5 users Popularity: 2.247 Language: en

1. Atomic Theory2011-01-07
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2. Thomson's Plum Pudding Model of the Atom2011-01-27
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3. Cathode Rays Lead to Thomson's Model of the Atom2011-02-02
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4. Scientific Notation - Explained!2011-02-02
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5. I'm Atoms (Scientific Cover of Jason Mraz's I'm Yours)2011-02-02
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6. Scientific Notation - Example2011-02-03
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7. The Difference Between Mass and Weight2011-02-07
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8. Egg Experiment to Demonstrate Inertia2011-02-09
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9. Gravity (Scientific Version of John Mayer's Gravity)2011-02-13
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10. How Far Away is the Moon? (The Scale of the Universe)2011-02-17
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11. What is a Force?2011-02-18
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12. What Forces Are Acting On You?2011-02-18
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13. Why Does the Moon Orbit Earth?2011-02-21
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14. What Is Gravity?2011-02-21
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15. Best Film on Newton's Third Law. Ever.2011-02-25
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16. Calculating Gravitational Attraction2011-02-28
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17. Which Hits The Ground First?2011-03-01
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18. Misconceptions About Falling Objects2011-03-03
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19. Is There Gravity In Space?2011-03-08
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20. Three Incorrect Laws of Motion2011-03-10
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21. Experiments A Cappella2011-03-14
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22. Khan Academy and the Effectiveness of Science Videos2011-03-17
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23. What Are Atoms and Isotopes?2011-03-22
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24. Supercooled Water - Explained!2011-03-23
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25. How Damaging is Radiation?2011-03-25
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