Stephen Hawking thought an asteroid impact posed the greatest threat to life on Earth. Thanks to Kiwico for sponsoring this video. For 50% off your first month of any crate, go to kiwico.com/veritasium50
For other potential world ending catastrophes, check out Domain of Science: ve42.co/DoS
Special thanks to:
Prof. Dave Jewitt from UCLA Earth, Planetary, and Space Sciences
Prof. Mark Boslough from Sandia National Labs
Scott Manley: www.youtube.com/user/szyzyg
Ryan Wyatt at Morrison Planetarium
Prof. Amy Mainzer
Alexandr Ivanov for the opening shot of Chelyabinsk Meteor
What would we see if we could journey through time, from Earth’s birth up to its death? Join us today on a voyage through time, from planetary creation to the blossoming of life, from the first civilizations to the planet’s ultimate demise.
Дорогой мир,
Давай поговорим о времени.
Когда я загрузил мое первое видео на YouTube 7 лет назад, Я бы никогда и не подумал, что оно получит так много внимания. Имел много обсуждений, встретил новых людей, продолженных, чтобы сделать видео о вещах, которые заинтриговали меня. Или испытал эффекты.
Я наслаждался им много, и я все еще читаю каждый комментарий, который появляется. И они продолжают приходить. Я очень рад, что начал это хобби. И я смущен вниманием.
Ну, поскольку время проходило, я находил все меньше времени для работ над видео, боролся с другими вещами в жизни и задался вопросом, найду ли я когда-нибудь время снова.
Но я всегда знал одну вещь:
Я кое-что должен Вам. Все время люди спрашивали о продолжении к сравнению размеров звёзд. И да, я пообещал однажды.
Я держу свои обещания. Так, каждый раз, когда я находил время в прошлом году, я тратил его на проект. И вот он.
Я надеюсь, что Вам понравится. Я пытался сделать его в немного другим способом. Любопытствую об отзывах. Я знаю, что едва ли буду в состоянии победить музыку из первой части, но позвольте мне сказать, Вангелис Альфа — часть, которая очень дорога моему сердцу, я всегда держал её в памяти.
Все еще ищу возможности контакта с музыкантами.
Я не знаю, что принесёт будущее, но я надеюсь, что мы получим вести друг от друга. Наслаждайтесь!
The world around us is made of atoms. Did you ever wonder where these atoms came from? How was the gold in our jewelry, the carbon in our bodies, and the iron in our cars made? In this lecture, we will trace the origin of a gold atom from the Big Bang to the present day, and beyond. You will learn how the elements were forged in the nuclear furnaces inside stars, and how, when they die, these massive stars spread the elements into space. You will learn about the origin of the building blocks of matter in the Big Bang, and we will speculate on the future of the atoms around us today.
Speaker: Dr. Edward Murphy, University of Virginia
Date: November 13, 2012
In the beginning — before the 1920s, these words had no place in our scientific understanding of the universe. Astronomers believed the cosmos to be eternal and unchanging. We knew of only one galaxy and a few million visible stars, and this was the scope of our observable universe.
Then astronomer Edwin Hubble observed, courtesy of redshift, distant galaxies speeding away from each other and formulated Hubbles Law to explain the universes uniform expansion. Redshift just refers to a distant celestial bodys shift toward longer, or redder, wavelengths, compliments of the Doppler effect.
From the award-winning team that brought you The Secret Life of Chaos comes a unique television event on the physics of gravity, featuring unexpected historical insights, cutting-edge science and exciting new experiments.
With the brilliant Professor Jim Al-Khalili as our host, we visit the LIGO lab in the USA where gravity waves were discovered and uncover the latest theories about our cosmos that have come from studying the most intense sources of gravity imaginable – black holes.
Elsewhere, Jim even uses Albert Einstein’s theories of special and general relativity to work out how the rate at which you age is affected by gravity and the speed at which you move about.
Content Provided By TVF International. Any Queries Please Contact Us at hello@littledotstudios.com
Subscribe to Spark for more amazing science, tech and engineering videos — goo.gl/LIrlur
Revised edition: youtu.be/SkeNMoDlHUU
This is a documentary which portrays the birth of the solar system, the birth of the Earth, and the emergence and evolution of life on Earth depicted through latest research activities.
Executive producer: prof. Shigenori Maruyama. Supported by Hadean Bioscience Project.
1. The Origin of the Earth. 00:00
4.567 billion years ago: The formation of the Solar System.
4.56 billion years:ago: The formation of the Earth.
4.55 billion years ago: Giant impact.
2. Initiation of Plate Tectonics. 02:53
4.37-4.20 billion years ago: The formation of the atmosphere and ocean.
4.37-4.20 billion years ago: The initiation plate tectonics.
3. Birth of Proto-life. 06:57
4.10(4.20?) billion years ago: The birth of first proto-life.
4. The Initial Stage of Life. 10:53
4.37-4.20 billion years ago: The loss of the primordial continent and the generation of a strong geomagnetic field.
4.20 billion years ago: The emergence of sun-powered life.
4.10 billion tears ago: Mass extinction.
5. Second Stage of Evolution of Life. 16:36
2.90 billion years ago: The emergence of photosynthetic life.
2.70 billion years ago: Mantle overturn.
6. Third Stage of the Evolution of Life. 20:35
2.30 billion years ago: Mass extinction by snowball Earth.
2.10 billion years ago: From prokaryotes to eukaryotes.
7: The Dawn of the Cambrian Explosion. 25:07
1.90-0.80 billion tears ago: The Formation of a Supercontinent.
700-600 million years ago: The Sturtian Glaciation
700-600 million years ago: The Leaking Earth.
8: The Cambrian Explosion. 30:57
640 million years ago: The Origin of Multicellular Life. The Marinoan Glaciation.
580 million years ago: Appearance of Ediacaran Fauna. The Gaskiers Glaciation.
550 million years ago: Evolution Responds to Environmental Changes
540 million years ago: The First Cambrian Organisms
9: The Paleozoic Era. 37:06
600 million years ago: Expanding Habitats.
540 million years ago: The Co-evolution of Planets and Insects
550-540 million years ago: The Evolution of Vertebrates
260-250 million years ago: The Largest Mass extinction of the Phanerozoic Eon. Collision with a Dark nebula
10: From the Mesozoic to the birth of human beings. 43:23
Dispersion and amalgamation of continents, and the evolution of life.
The birth of primates.
11: The Humanozoic eon: the appearance of human beings and civilization. 50:26
Evolution into primates.
The birth of human beings, the fourth animal category: the Humanozoic eon.
10000 years ago: The Agricultural Revolution.
5000 years ago: The Urban Revolution.
2400 years ago: The Religious Revolution.
300 years ago: The Industrial Revolution.
The Information Revolution.
12: Future of the Earth. 57:54
Challenges for Human society.
Future of Human society.
Future of the Earth.
200 million years later: Formation of the supercontinent.
400 million years later: Extinction of the C4 plants.
1 billion years later: Cessation of plate tectonics.
1.5 billion years later: Disappearance of the ocean.
4.5 billion years later: Collision between the Milky Way Galaxy and the Andromeda Galaxy.
8 billion years later: Annihilation of the Earth.
@Kaoru GreenEmerald
For the last 12 years, Carter Emmart has been coordinating the efforts of scientists, artists and programmers to build a complete 3D visualization of our known universe. He demos this stunning tour and explains how its being shared with facilities around the world.