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4,602 results

David Butler
How Far Away Is It - Chapter 16 - The Cosmos (4K)

Text - http://howfarawayisit.com/the-cosmos-2020/ Index ...

40:37
How Far Away Is It - Chapter 16 - The Cosmos (4K)

2,251,757 views

5 years ago

David Butler
The Chemistry of Life Basics

text - https://howfarawayisit.com/wp-content/uploads/2025/08/The-Chemistry-of-Life.doc music free version ...

25:50
The Chemistry of Life Basics

21,904 views

5 months ago

David Butler
How Old Is It - Chapter 3 - Big Bang ΛCDM Cosmology (4K)

Text - http://howfarawayisit.com/wp-content/uploads/2013/05/Big-Bang-%CE%9BCDM-Cosmology-2.pdf Credits ...

42:18
How Old Is It - Chapter 3 - Big Bang ΛCDM Cosmology (4K)

668,023 views

8 years ago

David Butler
How Small Is It - Chapter 3 - The Atom (4K)

Text - http://howfarawayisit.com/wp-content/uploads/2021/05/The-Atom-2021.pdf Music free version ...

35:48
How Small Is It - Chapter 3 - The Atom (4K)

386,376 views

4 years ago

David Butler
How far away is it - Chapter 10 - The Milky Way (4K)

Document - http://howfarawayisit.com/wp-content/uploads/2019/04/The-Milky-Way-2019-edition-1.pdf Index ...

41:31
How far away is it - Chapter 10 - The Milky Way (4K)

1,938,130 views

6 years ago

David Butler
How Fast Is It - Chapter 8 - Gravitational Waves (4K)

text - https://howfarawayisit.com/wp-content/uploads/2024/06/Gravitational-Waves.pdf Music Free Version ...

47:41
How Fast Is It - Chapter 8 - Gravitational Waves (4K)

123,575 views

1 year ago

David Butler
How Small Is It - Chapter 5 - The Higgs Boson (4K)

Text - http://howfarawayisit.com/wp-content/uploads/2021/09/The-Higgs-Boson-2021.pdf Music free version ...

44:39
How Small Is It - Chapter 5 - The Higgs Boson (4K)

456,144 views

4 years ago

David Butler
How Old Is It - Chapter 6 - The Solar System (4K)

Text - http://howfarawayisit.com/wp-content/uploads/2020/06/How-Old-is-it-The-Solar-System-2.pdf Index ...

32:07
How Old Is It - Chapter 6 - The Solar System (4K)

192,250 views

5 years ago

David Butler
How Old Is It - Chapter 4 - The Epoch of Reionization (4K)

text - https://howfarawayisit.com/wp-content/uploads/2024/12/The-Era-of-Reionization.pdf Music Free Version ...

26:30
How Old Is It - Chapter 4 - The Epoch of Reionization (4K)

39,102 views

1 year ago

David Butler
How Old Is It - Chapter 2 - Big Bang Cosmology Fundamentals (4K)

Text - http://howfarawayisit.com/wp-content/uploads/2013/05/Big-Bang-Cosmology-Fundamentals-1.pdf Credits ...

34:08
How Old Is It - Chapter 2 - Big Bang Cosmology Fundamentals (4K)

390,594 views

8 years ago

David Butler
How Far Away Is It - Chapter 6 - Distant Stars (4K)

Text - http://howfarawayisit.com/wp-content/uploads/2018/05/Distant-Stars-1.pdf Index ...

27:27
How Far Away Is It - Chapter 6 - Distant Stars (4K)

699,758 views

7 years ago

David Butler
How Fast Is It - 02 - The Speed of Light (1080p)

Text at http://howfarawayisit.com/documents/ Music free version ...

31:26
How Fast Is It - 02 - The Speed of Light (1080p)

271,332 views

10 years ago

David Butler
How Fast Is It - Chapter 5 - General Relativity II - Tests (4k)

4:25 Error in the metric spacetime interval in polar coordinates. Should be sin(theta) instead of cos(theta). text ...

32:32
How Fast Is It - Chapter 5 - General Relativity II - Tests (4k)

65,646 views

2 years ago

David Butler
How Small Is It - Chapter 4 - Elementary Particles (4K)

Text - http://howfarawayisit.com/wp-content/uploads/2021/08/Elemetary-Particles-2021.pdf Music free version ...

42:12
How Small Is It - Chapter 4 - Elementary Particles (4K)

301,990 views

4 years ago

David Butler
James Webb 1st Release

Text - http://howfarawayisit.com/wp-content/uploads/2022/08/JWST-First-Images.pdf Music free CC version ...

19:55
James Webb 1st Release

194,813 views

3 years ago

David Butler
Classroom Aid -  CANUCS-LRD

text - https://howfarawayisit.com/wp-content/uploads/2025/12/2025-Review.pdf 2025 was another big year for astronomical ...

1:53
Classroom Aid - CANUCS-LRD

776 views

1 month ago

David Butler
How Small Is It - Chapter 6 - Superposition and Quantum Entanglement (4K)

Text - https://howfarawayisit.com/wp-content/uploads/2025/11/Quantum-Entangelment-2025.pdf ERROR at 26:00. Equation is ...

46:56
How Small Is It - Chapter 6 - Superposition and Quantum Entanglement (4K)

92,544 views

3 years ago

David Butler
Classroom Aid - Old Accretion Disk in the SMC

text - https://howfarawayisit.com/wp-content/uploads/2025/01/How-Far-Away-Is-It-2024-Review.pdf 2024 was another big year for ...

2:38
Classroom Aid - Old Accretion Disk in the SMC

1,354 views

1 year ago

David Butler
How Fast Is It - 05 - General Relativity II - Effects (1080p) old

Text at http://howfarawayisit.com/documents/ Music free version ...

29:33
How Fast Is It - 05 - General Relativity II - Effects (1080p) old

197,177 views

10 years ago

David Butler
Classroom Aid - Bell's Inequality

Text - https://howfarawayisit.com/wp-content/uploads/2025/11/Quantum-Entangelment-2025.pdf Index ...

5:51
Classroom Aid - Bell's Inequality

3,293 views

2 months ago