Видео с ютуба David Butler

How Fast Is It - Chapter 7 - Black Holes (4K)

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

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

How Old Is It - Chapter 5 - How Old are Stars (4K)

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

The Chemistry of Life Basics

How Far Away Is It - 2023 Review

How Far Away Is It - 2014 Review - Comets & Oort Cloud (1080p)

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

Nerves, knowledge and theratube - With David Butler

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

David Butler / 19 years old bodybuilder rocking ROY FIRE / showing his pumped muscle

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