MinuteEarth: The Story of Our Planet
Our first video ever! Agriculture, hula hoops, SARS, and THIS video: how long did they take to get around the earth? Please subscribe to see all our new videos (they're FREE!) - http://goo.gl/EpI...
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As far as we know, around 4,500 million years ago this rock that we live on coalesced from the dust and debris left over from the formation of our sun. Without airplanes, pizza delivery, or the Internet, things moved more slowly across the early earth than they do today. For example, from isolated puddles of water, the oceans formed over the course of 400 to 800 million years. That's how long it would take for your hair to grow around the earth - twice. In that same time, bacterial life did spread across the watery globe. Higher plants and animals, on the other hand, took much longer to develop and disperse. But we're going to skip those 3 billion years (during which your hair would have grown to the moon) and talk about us, Homo sapiens. We wer...
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As far as we know, around 4,500 million years ago this rock that we live on coalesced from the dust and debris left over from the formation of our sun. Without airplanes, pizza delivery, or the Internet, things moved more slowly across the early earth than they do today. For example, from isolated puddles of water, the oceans formed over the course of 400 to 800 million years. That's how long it would take for your hair to grow around the earth - twice. In that same time, bacterial life did spread across the watery globe. Higher plants and animals, on the other hand, took much longer to develop and disperse. But we're going to skip those 3 billion years (during which your hair would have grown to the moon) and talk about us, Homo sapiens. We wer...
