Lex Fridman Podcast

#213 – Barry Barish: Gravitational Waves and the Most Precise Device Ever Built

Aug 23, 2021

02:30:12

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Highlights

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Episode notes

Detection of Gravitational Waves

04:19

Is the Idea of Bombing With Neutrons an Experimental Idea?

01:54

Is Antimatter Like a Gravitational Field?

02:03

Introduction

3min

Give Directly Gives Money to People Living in Extreme Poverty

3min

Forsegmatic - The Maker of Delicious Mushroom Coffee and Plant-Based Protein

2min

The Lex Friedman Podcast - Barry Barish

2min

How to Keep That Flame of Curiousness Going?

2min

Is There a Moment When You Wondered About Water

2min

What Are Some Questions About the Universe That You're Teaching Offline

3min

The Last Physicist of Note Enrico

6min

Is the Idea of Bombing With Neutrons an Experimental Idea?

2min

10.

The Virtues of Curiosity

2min

11.

Artificial Intelligence or Machine Learning Is the Ratchet of Curiousness

2min

12.

Is There a Family Paradox?

2min

13.

Communication Is Harder Than You Think

3min

14.

The Fifth Force of Physics

2min

15.

Newton's Theory of Gravitational Waves

4min

16.

What Is Gravitational Wave Theory?

2min

17.

Do Gravitational Waves Exist?

3min

18.

General Relativity - Einstein's Letter to Physical Review

4min

19.

What Kind of Events Would Generate Gravitational Waves?

2min

20.

What Does It Feel Like to Ride a Wave as You Get Closer to the Source or Experience It

2min

21.

Is This a Therapy Session?

2min

22.

Is There a Disturbance in Space?

3min

23.

The Gravity of Earth

2min

24.

Gravitational Waves and Einstein's Interferometer

3min

25.

Measurements in Time - One Part in 10 to the 21 That's 21 Zeros and a One Okay Okay Okay So the Distortion in Time Is a Distorsion in Time and It's a Distortion in Time

2min

26.

The Laser Interferometer Gravitational Wave Observatory

3min

27.

How Do You Isolate Yourself From the Earth?

3min

28.

How Do Earphones Noise Cancelling Work?

2min

29.

How Much Do We Reduce the Shaking of the Earth?

2min

30.

Is This the Most Precision Precision Instrument Ever Built?

2min

31.

Active Cancelling

2min

32.

How Do You Make the World's Biggest High Vacuum System?

2min

33.

Evolution Started With Single Cell Organisms

2min

34.

What Does It Take to Lead a Team Like This?

3min

35.

Detection of Gravitational Waves

4min

36.

I Think It's a Ureco Moment

2min

37.

Is It a Pandemic or a Success Story?

5min

38.

How Important Is the Nobel Prize in All of This?

3min

39.

The Nobel Prize Is a Good Thing

2min

40.

How to Improve LIGO in the Future?

3min

41.

The Big Bang and Its Origins

2min

42.

Is Antimatter Like a Gravitational Field?

2min

43.

I'd Be Shocked if There Wasn't Gravity Away

2min

44.

The Engineering of Lasers in Space

2min

45.

What Are Binary Black Hole Systems?

4min

46.

The Origins of Black Hole

2min

47.

The Origin of Black Hole and Gravitational Waves

2min

48.

How Do You Feel About Black Hole?

3min

49.

The Problem With String Theory Is It Has No Predictability

2min

50.

Is It Possible That Humans Will Colonize Mars?

3min

51.

The South Pole Station in the U.S.

3min

52.

The Paradox Family's Paradox

3min

53.

Are We Able to Go for Another Couple Thousand Years at Least?

2min

54.

The Most Important Book That I've Read in the Last Year

3min

55.

The Idiot

2min

56.

I Think the Nobel Prize Isn't Fiction but It's a Very Valuable Lesson

3min

57.

Is There Advice You Can Give to Young People Today?

2min

58.

I Don't Know What a Metaphor Is

2min

59.

The Dead and Finnegan's Wake

2min

60.

What Is the Meaning of Life?

2min

61.

Are You Afraid of Death?

2min

62.

What Do You Hope Your Legacy Is

2min

Barry Barish is a theoretical physicist at Caltech and the winner of the Nobel Prize in Physics. Please support this podcast by checking out our sponsors:
– MUD\WTR: https://mudwtr.com/lex and use code LEX to get 5% off
– GiveDirectly: https://givedirectly.org/lex to get gift matched up to $300
– BiOptimizers: http://www.magbreakthrough.com/lex to get 10% off
– Four Sigmatic: https://foursigmatic.com/lex and use code LexPod to get up to 60% off
– Magic Spoon: https://magicspoon.com/lex and use code LEX to get $5 off

EPISODE LINKS:
Barry’s Nobel Prize entry: https://www.nobelprize.org/prizes/physics/2017/barish/facts/
Barry’s Caltech profile: https://pma.caltech.edu/people/barry-c-barish
LIGO’s Website: https://www.ligo.caltech.edu/
LIGO’s Twitter: https://twitter.com/LIGO

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OUTLINE:
Here’s the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time.
(00:00) – Introduction
(08:27) – Early Math and Physics questions
(18:02) – Enrico Fermi
(24:34) – Birth of the Nuclear Age
(29:42) – The Fermi Paradox
(34:45) – Gravity
(51:28) – Philosophical Implications of General Relativity
(58:34) – Detecting Gravitational Waves
(1:01:47) – LIGO
(1:34:45) – Nobel Prize
(1:49:34) – Black Holes
(2:01:53) – Space Exploration
(2:09:48) – Books
(2:18:37) – Advice for young people
(2:24:33) – Meaning of life