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Budget Rule (lemmy.blahaj.zone)

submitted 11 months ago by Mr_Mofu to c/196

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[-] Hedgehog 109 points 11 months ago* (last edited 11 months ago)

Turns out it'd be a dissapointingly small sphere:

US annual defence budget = $800 billion

2% = $16 billion

Obsidian cost per kg = $5

Total kg in budget = 3.2 billion kg

Density of obsidian = 2.6 g/cm3 = 2600 kg/m3

Total volume of sphere = 3.2b/2600 = 1230769 m3

Volume of sphere = 4/3 π r^3

Radius = (3V/4π)^(1/3) = 66.48 m

The sphere would only stand at 133m tall, I propose we instead utilise the entire defence budget for a much more skyscraper like 490m tall orb

[-] MargotRobbie@lemmy.world 73 points 11 months ago

Nobody said it had to be a solid sphere, how else would you get it to emit the ominous hum without attuning its natural frequency by carefully designing the thickness of the obsidian layer?

[-] lseif@sopuli.xyz 68 points 11 months ago

ignores engineering and construction cost. but we can assume that all people involved would work for free, because its a massive honour

[-] Confused_Emus@lemmy.world 7 points 11 months ago

Obsidian Orb is really Roko's Basilisk. Allowing you to live is your payment for building it.

[-] pokemaster787@ani.social 41 points 11 months ago

Well that's assuming it's completely solid and not hollow. Hollow would probably be pretty huge, although the structural rigidity might not be great. Maybe we make a giant obsidian 3D printer and print it at like 10-15% infill.