LeBron asks about comparing Earth's history to a basketball game | Summary and Q&A

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September 4, 2012
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Khan Academy
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LeBron asks about comparing Earth's history to a basketball game

TL;DR

Humans have been on Earth for a fraction of a second in the "basketball game" timeline, while the extinction of the dinosaurs occurred with less than a minute left in the game.

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Questions & Answers

Q: How long is an NBA basketball game in terms of regulation play?

An NBA basketball game consists of 48 minutes of regulation play, equivalent to 2,880 seconds.

Q: How old is the Earth and the estimated age of the solar system?

The Earth and the entire solar system are estimated to be 4.54 billion years old.

Q: How long have anatomically modern humans been on the surface of the Earth?

Anatomically modern humans have been on Earth for approximately 200,000 years.

Q: When did the extinction of the dinosaurs occur relative to the Earth's history?

The extinction of the dinosaurs, caused by an asteroid impact, occurred 65.5 million years ago, which is about 41 seconds before the end of the "basketball game" timeline.

Summary & Key Takeaways

  • The duration of an NBA basketball game is 48 minutes of regulation play, equivalent to 2,880 seconds.

  • The Earth is estimated to be 4.54 billion years old, while anatomically modern humans have been around for approximately 200,000 years.

  • The extinction of the dinosaurs due to an asteroid impact occurred 65.5 million years ago, which is about 41 seconds before the end of the "basketball game" timeline.

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