When Will Time End? (Version 1)
Synopsis
The average human lifespan has increased to 65 years, up from just 20 years during the Stone Age, amid rapid changes in the environment.
Synopsis
Philosophers have long debated the nature of time, questioning whether it is a property of the universe or a human invention. As life on Earth evolves, the average human lifespan has increased to 65 years, a stark contrast to just 20 years in the Stone Age. The documentary discusses the implications of Stephen Hawking's theories on the universe's future, suggesting that humanity exists within a fleeting moment in the vast timeline of existence. Footage from Ivan Bridgewater enriches the narrative, illustrating the cosmic scale of time.
Deep Dive
Why Watch
- Find out how Earth's rotation affects our timekeeping.
- See how circadian rhythms influence our daily lives.
- Meet scholars debating the nature of time.
Did You Know
- The global average human lifespan is 65 years, up from 20 in the Stone Age.
- The Earth rotates once every 23 hours, 56 minutes, and 4.1 seconds.
- A year during the time of the dinosaurs was 370 days long.
- Only about one billionth of the Sun's energy actually reaches the Earth.
Perfect For
Frequently Asked Questions
What is the global average human lifespan?
The global average human lifespan is 65 years.
How long does it take for the Earth to rotate once?
It takes approximately 23 hours, 56 minutes, and 4.1 seconds for the Earth to rotate once, when judged by the stars.
How often do we add a leap second to our clocks?
We add a leap second to our clocks about every 18 months.
What are people saying?
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