Accessing Earth's Core (Narration Only)

Science & Futurism with Isaac Arthur

Isaac Arthur

Science, Futurism, Sci Fi, Future, Scifi, Technology, Space, Engineering

4.8 • 739 Ratings

🗓️ 12 December 2019

⏱️ 26 minutes

🔗️ Recording | iTunes | RSS

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Summary

All of our civilization exists only a thin layer of Earth's surface, and our deepest mines barely scratch our planet. We often talk about finding new mineral resources on other worlds or asteroids in the future, but are we ignore a treasure beneath our feet, and what other technologies and engineering might we utilize in Earth's depths? Watch the video version:https://youtu.be/jZQP2oNDkAM Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Credits: Accessing Earth's Core Episode 216, Season 5 E50 Written by: Isaac Arthur Editors: Darius Said Jerry Guern Keith Blockus S. Kopperud Victoria Kelly Cover Art: Jakub Grygier https://www.artstation.com/jakub_grygier Graphics: Jarred Eagley Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana Katie Byrne Ken York https://www.facebook.com/YDVisual/ Sam McNamara Sergio Botero https://www.artstation.com/sboterod?fref=gc Produced & Narrated by: Isaac Arthur Music Courtesy of Epidemic Sound http://epidemicsound.com/creator See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Transcript

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0:00.0	Hello, SFIA audio listeners. In this month's Nebula exclusive, big alien theory,
0:05.2	we're asking the reason alien civilizations might be rare is because most aliens are huge.
0:10.5	To hear it and every episode early and add free, plus hours of bonus content,
0:15.1	check out go.nebola.tv slash Isaac Arthur and use my code, Isaac Arthur.
0:20.4	This episode is sponsored by Brilliant.
0:23.4	The deepest hole mankind has ever dug was 12 kilometers deep.
0:28.1	We'll have to do several hundred times better to get to Earth's center, but if we can do it,
0:32.9	we'll gain access to resources beyond our imagining.
0:38.3	So today we'll be looking at how to go about accessing the Earth's mantle and core,
0:43.0	and the reasons why we might do that.
0:45.5	We should start by acknowledging that Earth is immense.
0:49.0	So often on this channel we look at the scales of celestial bodies that dwarf our pale
0:53.1	blue dot, which makes it easy
0:54.8	to forget that that dot is still huge. If you could somehow explore 2,000 new square miles
1:00.8	of Earth's surface every day, it would take you 80 years just to see all of the land,
1:05.9	and those would be busy days because there are over a million mountains to climb on this planet,
1:10.7	and over 100 million freshwater lakes climb on this planet, and over
1:11.1	a hundred million freshwater lakes to swim in.
1:14.4	But the Earth's cement volume is even harder to visualize than its surface area.
1:18.9	Humans occupy only a tiny portion of that volume, a few tens of meters above and below the
1:23.9	wrinkly surface.
1:25.4	Beneath us is the real Earth, a trillion times more mass in space than we use on the surface.
	...

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