The First Fraction of a Second - Crash Course Pods: The Universe #1
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Date: 2024-04-25
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Comments and reviews: 20
josher887
Questions:
1. We all know how mass turns into energy, but how does energy turn into mass
2. I once had an initial hypothesis based on no research; obviously the anti matter to matter ratio had to have been relative close like 499 to 501 ratio.
Most of our reality is dark matter right Like most of the mass is dark matter
What if after the annihilation of matter and antimatter on a massive scale (I once talk to a particle physicist at osu on his lunch break in a Panera and he said these events sometimes emit the energy to higher dimensions) what if this energy went to a higher dimension (this is above my pay grade literally) and if for some it came back to our dimension, something made it easier for it to turn into dark matter or regular matter
Basically could the disparity come from the entropy of these events as it reforms to matter in our universe because for whatever reason it preferences to forming matter and not antimatter
reply
Questions:
1. We all know how mass turns into energy, but how does energy turn into mass
2. I once had an initial hypothesis based on no research; obviously the anti matter to matter ratio had to have been relative close like 499 to 501 ratio.
Most of our reality is dark matter right Like most of the mass is dark matter
What if after the annihilation of matter and antimatter on a massive scale (I once talk to a particle physicist at osu on his lunch break in a Panera and he said these events sometimes emit the energy to higher dimensions) what if this energy went to a higher dimension (this is above my pay grade literally) and if for some it came back to our dimension, something made it easier for it to turn into dark matter or regular matter
Basically could the disparity come from the entropy of these events as it reforms to matter in our universe because for whatever reason it preferences to forming matter and not antimatter
reply
bryandraughn9830
A good way to conceptualize the expansion of the universe is to think in terms of a doubling rate.
If the universe doubles in size over 10 billion years, it's only because 1 centimeter of that space will also double over 10 billion years.
How fast is that centimeter moving
It's not. It's just twice as big after the 10 billion year period.
You line them all up and choose any point along that line, you will never find a spot that's moving very much at all.
If you were viewing our galaxy from a very distant galaxy, you would see it receding very quickly but we are here now and we can see that we are just drifting through the universe at a very ordinary velocity.
reply
A good way to conceptualize the expansion of the universe is to think in terms of a doubling rate.
If the universe doubles in size over 10 billion years, it's only because 1 centimeter of that space will also double over 10 billion years.
How fast is that centimeter moving
It's not. It's just twice as big after the 10 billion year period.
You line them all up and choose any point along that line, you will never find a spot that's moving very much at all.
If you were viewing our galaxy from a very distant galaxy, you would see it receding very quickly but we are here now and we can see that we are just drifting through the universe at a very ordinary velocity.
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steggopotamus
I always thought that the presence of antimatter asymmetry just means it's a indication that we have a hidden universe that's a counterweight to our own.
And that's where I think electrons disappear to when they skip orbit levels (are those called valences) in an atom.
But what I like about this hypothesis is it becomes a place that's like a heaven and it just feels poetic even if once we find it and study it (if it's there) nothing is there. something just feels elegantly poetic about it no matter what is or isn't there.
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I always thought that the presence of antimatter asymmetry just means it's a indication that we have a hidden universe that's a counterweight to our own.
And that's where I think electrons disappear to when they skip orbit levels (are those called valences) in an atom.
But what I like about this hypothesis is it becomes a place that's like a heaven and it just feels poetic even if once we find it and study it (if it's there) nothing is there. something just feels elegantly poetic about it no matter what is or isn't there.
reply
crash_course
What an incredible podcast, I am so stoked to listen to this series! This is going to be amazing and this was an incredible first episode. So many blessings to John and Kate and the crew for making this.
Fans of this series will benefit from the Crash Course on Mythology. For this episode, look for stories about cosmic eggs and world-encircling serpents such as Jormungandr.
Stay curious!
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What an incredible podcast, I am so stoked to listen to this series! This is going to be amazing and this was an incredible first episode. So many blessings to John and Kate and the crew for making this.
Fans of this series will benefit from the Crash Course on Mythology. For this episode, look for stories about cosmic eggs and world-encircling serpents such as Jormungandr.
Stay curious!
reply
oliviawolcott8351
so, wait. the Literal Space is expanding. not just objects are getting far away, but the literal space is expanding. like if I were walking, and while I am walking the ground beneath me is expanding and where things are in space is getting further away. like a dream where I'm running but the hallway keeps getting longer as I'm running
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so, wait. the Literal Space is expanding. not just objects are getting far away, but the literal space is expanding. like if I were walking, and while I am walking the ground beneath me is expanding and where things are in space is getting further away. like a dream where I'm running but the hallway keeps getting longer as I'm running
reply
DarkAlleyDan
I truly love this. I'm a big humanities guy, and I've always struggled to conceptualize alot of these very ephemeral, hard to grasp and properly picture big scale scientific concepts, stories, and systems. I am a stranger in a stranger land (of the universe) and ol' John Green is the guide. to the actual guide.
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I truly love this. I'm a big humanities guy, and I've always struggled to conceptualize alot of these very ephemeral, hard to grasp and properly picture big scale scientific concepts, stories, and systems. I am a stranger in a stranger land (of the universe) and ol' John Green is the guide. to the actual guide.
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Rararawr
Its weird to think that there are atoms in my brain, that collectively have gained sentience. And yet this portion of the history of many of those atoms is a tiny fraction of its lifespan. Gonna give my hydrogen atoms a stern talking to so they appreciate the 2-3E9 seconds they get to know they exist
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Its weird to think that there are atoms in my brain, that collectively have gained sentience. And yet this portion of the history of many of those atoms is a tiny fraction of its lifespan. Gonna give my hydrogen atoms a stern talking to so they appreciate the 2-3E9 seconds they get to know they exist
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miniimaelstrom
I enjoy that in addition to all this wonderful information and the It's A Wonderful Life-ness of the two talking stars as character representations, the tiny stars in the background are moving, just like the real night sky. That was a delightful little find!
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I enjoy that in addition to all this wonderful information and the It's A Wonderful Life-ness of the two talking stars as character representations, the tiny stars in the background are moving, just like the real night sky. That was a delightful little find!
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AnsonPavlov
Amazing design for this podcast. I love the side by side text with a little bit of star glow. It's so immersive and it really gives the audience something to engage with visually while an awesome conversation unfolds. Great job! :)
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Amazing design for this podcast. I love the side by side text with a little bit of star glow. It's so immersive and it really gives the audience something to engage with visually while an awesome conversation unfolds. Great job! :)
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khinojosable
I feel like the idea of why is probably the only term I'm going to be able to understand the physics, math, and theories. So if anyone wants to start their degree in Astrophilosophy, I'll happily pitch in on textbook buying.
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I feel like the idea of why is probably the only term I'm going to be able to understand the physics, math, and theories. So if anyone wants to start their degree in Astrophilosophy, I'll happily pitch in on textbook buying.
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rmdodsonbills
Seems to me, and somebody correct me if I'm wrong, that not only are the hydrogen atoms in my body created in the big bang, but so were all the protons contained in the oxygen, nitrogen, and carbon in my body. That's cool.
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Seems to me, and somebody correct me if I'm wrong, that not only are the hydrogen atoms in my body created in the big bang, but so were all the protons contained in the oxygen, nitrogen, and carbon in my body. That's cool.
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SaulRadford
This is one of the most fascinating things I have ever listened to, thank you for making this, I feel its really opened my eyes about both physics and myself) Utterly Brilliant, with a capital B
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This is one of the most fascinating things I have ever listened to, thank you for making this, I feel its really opened my eyes about both physics and myself) Utterly Brilliant, with a capital B
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levyv2948
This is my favorite thing! I love astrophysics and the Anthropocene reviewed, so this combo is the best! Also Dr. Mack seems like an excellent teacher and I wish I could be one of her students!
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This is my favorite thing! I love astrophysics and the Anthropocene reviewed, so this combo is the best! Also Dr. Mack seems like an excellent teacher and I wish I could be one of her students!
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BirdsOnPowerLines
I love this so much! Thank you! This is quality content. Dr. Mack's analogies combined with John Green's questions and narrated pauses to recap what we just learned is just pure gold.
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I love this so much! Thank you! This is quality content. Dr. Mack's analogies combined with John Green's questions and narrated pauses to recap what we just learned is just pure gold.
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guest_informant
I think Sean Carroll did a solo podcast on Why is there Something Rather than Nothing It also comes up in the first Lex Fridman podcast with Joscha Bach. Maybe existence is the default.
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I think Sean Carroll did a solo podcast on Why is there Something Rather than Nothing It also comes up in the first Lex Fridman podcast with Joscha Bach. Maybe existence is the default.
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rmdodsonbills
John Green is a trinary system. It's going to take me some time to figure out what that means. But, this being a Green Brothers' project, I'm sure it has some significance.
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John Green is a trinary system. It's going to take me some time to figure out what that means. But, this being a Green Brothers' project, I'm sure it has some significance.
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cdanea
It is awesome to see John discover this, and that he never checked the SciShow and SciShow Space playlists and all cosmology updates in the last decade.
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It is awesome to see John discover this, and that he never checked the SciShow and SciShow Space playlists and all cosmology updates in the last decade.
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rolandtowen2595
I love the illustration of John and Dr. Mac sitting in lawn chairs and looking up at the sky. Perfectly fits the vibe of the podcast!
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I love the illustration of John and Dr. Mac sitting in lawn chairs and looking up at the sky. Perfectly fits the vibe of the podcast!
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ajdamronfamily
Man, the editing of this video is just top-notch. I'm so impressed, even though much of it was over my head. Thank you, Crash Course!
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Man, the editing of this video is just top-notch. I'm so impressed, even though much of it was over my head. Thank you, Crash Course!
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666CrackSatan
I could not have asked for a more perfect new John Green narrated podcast series if i tried! Can’t wait for the next episode
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I could not have asked for a more perfect new John Green narrated podcast series if i tried! Can’t wait for the next episode
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