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Shahriar Zayyani

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The English-language Physics podcast of the DNL students of Lycee Notre-Dame de Sion, in Paris, France.

30 thg 5

S5E09 - Superconductivity

Elisa & Karim present the topic of supreconductivity, with great finesse and detail, going over the history of its discovery to some of the current and potential future applications that could revolutionise our society ! -- : : Chapters : : -- 1:30 - What is superconductivity 2:37 - The discovery of superconductivity 5:55 - What is the holy grail of superconductivity 8:00 - how can we explain superconductivity? 11:40 - The Meissner effect and the link to superconductors 15:00 - ceramics and higher temperature superconductors 18:40 - Some applications 20:25 - some of the challenges with cooling super conductors and difficulty of room-temperature SC 22:40 - What is “quenching” and why is it a problem for SC cables 27:00 - Applications -- Credits -- Intro Music : "Feelin Good" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ Episode Music : "Mirage" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/

35 phút
17 thg 5

S5E08 - Quantum Computing

Following up on last week's episode's introduction to Quantum Mechanics, Emma and Colombe dive into one of it's most ambitious and interesting applications : Quantum Computing ! Enjoy the listen and feel free to leave a comment. -- : : Chapters : : -- 1:50 - What is Quantum Computing (QC) 2:55 - A brief history of QC 5:22 - Difference between classical compters and quantum ones 10:58 - is a QC just a really powerful classical computer or something totally new? 15:30 - What is Quantum Noise and why is it such a big deal and a difficult problem? 17:33 - Quantum Algorithms 22:42 - the future for quantum computing 25:29 - What are quantum dots? 26:30 - What is quantum supremacy and when will it arrive ? 27:27 - are we actually currently using quantum computers for anything? What are some applications? 32:15 - Colombe’s thoughts on the topic of Quantum Computers 33:00 - Emma’s thoughts on the topic -- Credits -- Intro Music : "Feelin Good" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ Episode Music : "Mirage" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/

35 phút
8 thg 5

S5E07 - Interpretations of Quantum Mechanics

We launch the Senior Class's episode with some very advanced stuff from two of our science stars, Gabriel & Damien. They aim very high hoping to explain to us what some of the interpretations of Quantum Mechanics are and what they imply, heavy stuff. Enjoy ! --- :: Chapters :: --- 1:50 - Why do we talk about the “interpretations” of quantum mechanics rather than just “quantum mechanics”? 3:05 - Is there a difference between a “theory” and an “interpretation”? 6:05 - Good or bad Theory vs Good or bad interpretation? 7:10 - Damien’s take on the whole “theory vs interpretation” question 8:30 - Does every theory need an interpretation? 11:31 - What are the more essential notions at the basis of Quantum Mechanics that we should know? 14:15 - Quantum complementarity and uncertainty 16:04 - What is a “measurement”?18:03 - What is so special about “Schroedinger’s Cat” anyway? 22:00 - The Copenhagen interpretation : What is it? 25:32 - The “Many Worlds Interpretation” 30:00 - How does the “world splitting” work in the Many-worlds interpretation? 35:00 - Hidden Variable Theories -- Credits -- Intro Music : "Feelin Good" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ Episode Music : "Mirage" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/

43 phút
3 thg 5

S5E06 - SETI & Society

So we have gone over all the science of the various aspects of the the SETI Project as well as a fair bit of speculation about what such E.T.I. civilisation might seem like or what traces they may have left behind that we could discover. But now it's time to turn to ourselves and wonder : What will human society be like if we were to discover an extra-terrestrial civilisation? That is exactly what Maxine, Brune, Anais and Sofia will talk about in this, our final episode of the SETI series for this year! Enjoy. :: Chapters :: 3:05 - What society might think of SETI research 7:00 - when an advanced civilisation meets a less advanced one … 8:30 - are all countries equal when it comes to SETI…? 11:34 - the team gives their opinion on whether we should try to contact an ETI if we find one? 12:34 - Anais believes that the discovery of an ETI would start wars on earth ! 15:00 - if we found out tomorrow that we’ve discovered an ETI close to earth …how will we react? 16:45 - Maxine is very dubitative … 19:40 - the impact on an ETI discovery on Religion 22:25 - would it be comparable to the Copernican and Darwinian revolutions? 24:35 - would such a discovery lead to people becoming more .. or less..religious? 24:50 - the Influence of ETI on … cinema ! 29:50 - the group’s final thoughts and opinion on the topic of SETI & Society -- Credits -- Intro Music : "Feelin Good" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ Episode Music : "Mirage" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/

34 phút
30 thg 4

S5E05 - SETI : Astrobiology

Luca & Stan talk about Astrobiology, the field of biology concerned with the idea of what life would look like on another planet, in anther solar system! :: Chapters :: 1:30 - What exactly is astrobiology 4:17 - How do we study Astrobiology 5:12 - Would life be the same on Earth as on Mars or some exoplanet? 6:17 - looking at life on earth to guess about life elsewhere 7:07 - have we actually looked for life elsewhere according to these precepts? 9:25 - the famous “Miller Experiment” 17:15 - have we seen signs of life out in the universe? 22:20 - Luca’s thought on their topic -- Credits -- Intro Music : "Feelin Good" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ Episode Music : "Mirage" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/

25 phút
20 thg 4

S5E04 - SETI : METI or Messaging Extra-Terrestrial Intelligences

Up until now we've been talking about passively staring into the cosmos, with out eyes and ears, and hoping to catch something and being able to interpret it. But what if we were to take the initiative ! be more active about things ! Well that is what METI is all about. METI (or Active SETI) is all about Messaging Extra-Terrestrial Intelligences. But with that very idea come a whole host of questions, the biggest one of which is : Should we? Because there are dangers associated to it, and ethical questions. Victoria, Scarlett, Juliette, Hermine and Aurelien are here to help guide us through all of this. Enjoy the Listen ! :: Chapters :: 1:35 - What is METI/Active SETI 3:36 - How would we even go about sending a message to another civilisation !? 5:20 - Have there been any attempts in the past to contact extra-terrestrials? 7:47 - Any recent attempts to send a message? 9:38 - Can we trust scientist to decide what to say to extra-terrestrials…? 10:47 - What is the technology necessary to send messages to ET civilisations? 12:45 - Messaging ET civilizations, a project for the future humans … 13:45 - are aliens among us already? 15:53 - the Kardashev scale of galactic civilisations 17:25 - What is the “Great Filter”? 19:27 - What role does Science Fiction play in SETI research ? 22:05 - The “Dark Forest” hypothesis for the cosmic silence from “The Three Body Problem” 26:18 - A defense of human non-violence by Scarlett ! 28:26 - Scarlett’s positive thoughts on the redeemability of humanity when faced with the new and the unknown 29:25 : Victoria’s not quite in agreement 30:37 - Aurelien is much more pessimistic about humanity’s reaction to contact with Extra-Terrestrials 31:51 - Juliette convinces herself to change her mind on the topic ! 32:55 - Hermine reflects on the topic and weighs in with her thoughts on the role of human Ego in all this 34:49 : The big question : “should we engage in trying to contact extra-terrestrials”? Victoria’s answer 37:05 - Hermine’s answer 37:49 - Scarlett weighs in with a plan 41:04 - Juliette in support of her mates … and Stephen Hawking! 41:48 - Aurelien…the only optimist? 42:53 - Scarlett wonders about the risk humans pose to the universe 43:54 - Final thoughts on the project -- Credits -- Intro Music : "Feelin Good" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ Episode Music : "Mirage" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/

47 phút
13 thg 4

S5E03 - SETI : Technosignatures & Xenoarchaelogy

Technosignatures? XENOARCHAELOGY? We are definitely into the heart of the our SETI project, if we're talkgin about these things. But what exactly are ... technosignatures? That's what Augustin, Alice, Anahi and Mathias are here to tell you. They will go over all the variety of signs an extra-terrestrial civilisation may leave behind, anythign from atmopheric markers to giant structures in space ! :: Chapters :: 1:47 - what are technosignatures 2:39 - What are some examples of Technosignatures 8:37 - How do we observe and study the atmosphere of exoplanets? 11:18 - What are energetic technosignatures 16:14 - technomorphological signatures 21:09 - Mega-structures : Dyson Sphres & Dyson swarms 27:37 - What is Xenoarchaelogy? 29:27 - the Oumuamua Object ! 32:14 - the limitations of the search for Technosignatures 36:05 - Mathias’s thoughts on the topic 39:44 - Augustin’s thoughts on the topic of SETI 41:30 - Anahi’s frustrations with her research topic 43:40 - Alice is surprised that we havent found anything despite all we know --- -- Credits -- Intro Music : "Feelin Good" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ Episode Music : "Mirage" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/

46 phút
4 thg 4

S5E02 : SETI - The science of SETI

Having learned a bit about teh history of SETI, this week we set out to learn a bit of the science behind it and how scientists go about studying and searching for extra-terrestrial life. Sophia, Alice, Linh and Matilde take turns tellign us about everything from Radioastronomy to how AI can help. And in the end they share their thoughts, their excitement or reservatiosn about the potential of contact with an alien civilisation ! Chapters : 1:10 - Overview of the topic 2:25 - What is spectroscopy 3:47 - how we use spectroscopy in SETI research 6:21 - the role of Radioastronomy 9:03 - Why radiowaves though? 9:27 - “narrowband signals” as a signature 10:38 - the “hydrogen line” and the WOW signal 12:50 - What is a Radiotelescope? 13:40 - what is a telescope ‘array’? 14:19 - How do we analyse signals from space? 15:56 - what are the signs of a potential alien radio-signal ? 20:04 - signs of intelligence in radio signals 22:23 - how do scientists choose where to look for signals? 24:07 - Radio-interferometry 26:55 - Galaxies that hum 28:38 - Matilde’s thoughts on SETI 29:42 - Linn’s thoughts on SETI 30:52 - Alice’s thoughts on SETI 31:38 - Sophia’s thoughts 33:08 - How can we make SETI more mainstream 33:52 - Sophia’s thoughts on actual contact with an Alien Civilisation 34:30 - Alice’s thoughts on mainstreaming SETI and the potential contact 36:25 - Lin’s reflexions on why we should talk about SETI more and potential contact 37:42 - Matilda’s skepticism for humanity’s capacity to face an alien civilisation --- -- Credits -- Intro Music : "Feelin Good" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ Episode Music : "Mirage" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/

40 phút

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The English-language Physics podcast of the DNL students of Lycee Notre-Dame de Sion, in Paris, France.

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Shahriar Zayyani
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2022 - 2026
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Physics bytes !