4.5 Billion Years in 1 Hour
Kurzgesagt – In a Nutshell・2 minutes read
Earth is 4.5 billion years old, with an experiment illustrating that every second equates to 1.5 million years passing, allowing one to witness Earth's history in an hour. The text details Earth's evolution from a lava-filled planet to the rise of mammals after the extinction of dinosaurs, highlighting key events such as the Great Oxidation Event and the Cambrian explosion.
Insights
- The Earth's history can be compressed into a single hour, with each second representing 1.5 million years, showcasing the planet's transformation from a lava-filled world to one teeming with life and diversity.
- The dominance of mammals on Earth was established 66 million years ago after the extinction of dinosaurs due to an asteroid impact, marking a significant shift in the planet's ecosystem and paving the way for the evolution of diverse mammalian species.
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Recent questions
How old is Earth?
4.5 billion years old
What caused the formation of the moon?
Collision with Theia, a Mars-sized object
When did life potentially begin on Earth?
Few hundred million years after Earth's formation
What event introduced oxygen to Earth's atmosphere?
The Great Oxidation Event 2.5 billion years ago
What marked the rise of mammals on Earth?
The Paleogene era, 66 million years ago