70: The Core of the Earth & Planned Obsolescence

What's actually going on in the center of the Earth, and just how interesting and useful could it be?  And how did the now ubiquitous Planned Obsolescence start with... bicycles??

Images we Talk About:
An Early Bicycle
Bilhert's Animations

Timestamps:
(00:00:00) Intro
(00:05:06) The Core
(00:58:24) Planned Obsolescence
(01:45:52) Outro

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We also learn about: Core Memories, we live on the zest of a lemon, there’s something neapolitan icecreamy about the Earth, Bridgmanite is 38% of the Earth, The Iron Catastrophe sounds metal as hell, an audio journey to the center of the Earth, “Eat My Ass Out Radiolab”, Earth’s Internal Heat Budget is half original energy and half nuclear, the Earth won’t cool down for at least another 10 years,  the American Miscellaneous Society’s Project Mohole, in 20 years we dug 12 km and escaped the solar system, when you don’t have earthquakes- use grenades! the shadow in the center of the Earth, Inge Lehmann kicks ass, “the master of a black art”, the inner core wobbles, the core is grainy and grows faster under Indonesia, the 2 most magical things: cold beer and hand warmers, the Inner Core Nucleation Paradox, “how wonderful that we have been met with a paradox, now we have some hope of making progress” - Niels Bohr, the Earth’s magnetic dynamo, Planetary Habitability is uh pretty important, everyone say thank you to the core, the innermost inner core, sometimes the one you’re looking for has been right below you this whole time, Tom falls hook line and sinker for a sudden 175 page bicycle paper, the first bikes without pedals or steering, the boneshaker, older men used tricycles, only the rich and adventurous used bikes, the safety iphone, you’re still using a bike 8? 10% of ads had a bicycle, Bernard London coined phrase the phrase 100 years ago, Planned Obsolescence was a legal proposal, contrived durability, there’s so many flavors and they all suck, e-waste, fast fashion is a vicious cycle, please I’m so full no more obsolescence words, car scrapping, why can we only help the planet when we also make a ton of money too, I’ve never seen someone so excited over Right to Repair, what do you mean you didn’t check every country’’s legal system? 

Source
SEG Wiki on the Layers of the Earth
Forbes: Bridgmanite
“Six ‘Must-Have’ Minerals for Life’s Emergence”
Olsen Lecture on the Iron Catastrophe
Bureaeu of Economic Geology on Mohole & Kola
Science Article on Bridgmanite
Britannica on Richard Dixon Oldham
AMNH's Wonderful Article on Inge Lehmann & Earthquakes
Don Anderson Paper Review of the Inner Core
Smithsonian Mag on Inge Lehmann