Ranked #1
AaS! 14: What is spacetime? (Part 1)
AaS! 14: What is spacetime? (Part 1)
What is spacetime? What was the breakthrough idea that led Einstein to develop Special Relativity? Who was right: Newton... Read more
4 Aug 2015
•
40mins
Ranked #2
AaS! 77: Seriously, what is gravity? (Part 1)
AaS! 77: Seriously, what is gravity? (Part 1)
Part 1! How did Einstein develop General Relativity? What does it mean for different kinds of masses to be equivalent? H... Read more
3 Apr 2018
•
38mins
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Ranked #3
AaS! 115: Is String Theory Worth It? (Part 1: Unify This!)
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5 Nov 2019
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49mins
Ranked #4
AaS! 14: What is spacetime? (Part 2)
AaS! 14: What is spacetime? (Part 2)
How are space and time related? How long would it take to travel the Milky Way? What other tricks can you play with Spec... Read more
18 Aug 2015
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35mins
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Ranked #5
AaS! 24: What's the beef with quantum gravity?
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Why doesn’t quantum mechanics agree with general relativity? Will we ever have a quantum picture of gravity? What are so... Read more
19 Jan 2016
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Ranked #6
AaS! 116: Is String Theory Worth It? (Part 2: Tuning the Strings)
AaS! 116: Is String Theory Worth It? (Part 2: Tuning the Strings)
How did String Theory get started? What has made the idea so popular over the decades? Can we ever truly have a theory o... Read more
19 Nov 2019
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48mins
Ranked #7
AaS! 107: Is interstellar travel possible?
AaS! 107: Is interstellar travel possible?
How hard is interstellar travel? What are the possible ways to achieve the required energy? Is there anything at all fea... Read more
2 Jul 2019
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37mins
Ranked #8
AaS! 17: What banged the Big Bang?
AaS! 17: What banged the Big Bang?
What’s the history of the universe? What is the big bang? What came before? I discuss these questions and more in today'... Read more
6 Oct 2015
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48mins
Ranked #9
AaS! 78: Seriously, what is gravity? (Part 2)
AaS! 78: Seriously, what is gravity? (Part 2)
Part 2! How did Einstein develop General Relativity? What does it mean for different kinds of masses to be equivalent? H... Read more
17 Apr 2018
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34mins
Ranked #10
AaS! 29: Why does E=mc^2?
AaS! 29: Why does E=mc^2?
Why does E=mc^2? Where does it come from? What’s the significance of that famous equation? I discuss these questions and... Read more
5 Apr 2016
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37mins
Ranked #11
AaS! 117: Is String Theory Worth It? (Part 3: Dimension is Destiny)
AaS! 117: Is String Theory Worth It? (Part 3: Dimension is Destiny)
How did String Theory get started? What has made the idea so popular over the decades? Can we ever truly have a theory o... Read more
3 Dec 2019
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42mins
Ranked #12
AaS! 52: Why is the Higgs Boson important? (Part 1)
AaS! 52: Why is the Higgs Boson important? (Part 1)
Part One! What does the Higgs Boson mean? What role does it play in the forces of nature? What makes it so special? I di... Read more
21 Mar 2017
•
37mins
Ranked #13
AaS! 95: Does light experience time? (and other mysteries)
AaS! 95: Does light experience time? (and other mysteries)
What does ‘time’ mean for light? What is the real lesson of the twin paradox? How can we all agree on the true age of th... Read more
1 Jan 2019
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27mins
Ranked #14
AaS! 13: What the heck is a magnetar?
AaS! 13: What the heck is a magnetar?
What’s the difference between a neutron star and a magnetar? How do you make a neutron star? How do they get so magnetic... Read more
21 Jul 2015
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32mins
Ranked #15
AaS! 27: How does gravity make waves?
AaS! 27: How does gravity make waves?
How did Einstein develop General Relativity? What does it mean for space to be curved anyway? And just how do these grav... Read more
1 Mar 2016
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43mins
Ranked #16
AaS! 73: Why should we believe the big bang?
AaS! 73: Why should we believe the big bang?
What did Hubble really discover? Why does redshift imply an expanding universe? Why is the night sky dark? Why is there ... Read more
6 Feb 2018
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30mins
Ranked #17
AaS! 31: How can the universe expand faster than light?
AaS! 31: How can the universe expand faster than light?
How can the universe expand faster than the speed of light? Whatdoes it mean for Special Relativity to be “local”? Is th... Read more
3 May 2016
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35mins
Ranked #18
AaS! 45: Wormholes - deal or no deal?
AaS! 45: Wormholes - deal or no deal?
Are wormholes real or what? How did we even start thinking of them? If we could build one, would it be possible to actua... Read more
6 Dec 2016
•
36mins
Ranked #19
AaS! 79: Seriously, what is gravity? (Part 3)
AaS! 79: Seriously, what is gravity? (Part 3)
Part 3! How did Einstein develop General Relativity? What does it mean for different kinds of masses to be equivalent? H... Read more
1 May 2018
•
42mins
Ranked #20
AaS! 63: How are we to understand quantum spin?
AaS! 63: How are we to understand quantum spin?
What does it mean for an electron to spin? Why do we have such a hard time measuring it? And why doesn’t Paul Dirac get ... Read more
5 Sep 2017
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33mins
