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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
ignores engineering and construction cost. but we can assume that all people involved would work for free, because its a massive honour
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.
2b2t players:
It would also crack instantly. Obsidian's not durable.
yeah right. it takes a long time to mine, even with a diamond pickaxe
Thats funny because more than 2%, more like 40%, of our defense budget is going into a black orb never to be seen again and is completely unaccounted for.
Would be a far better use of the 'defense' budget than what they're currently spending it on.
Just imagine the size we could build if we used all of the defense budget. It's resonant frequency would blow the eardrums of everyone on the West Coast and kill all marine life. One day when I'm presadent...
How much is that in dollars?
$817 billion in Defense Department spending For 2022.
2% is then $16.34 billion.
How much of that on other units? Please add those below.
A big obsidian orb!
the only true currency.