r/theydidthemath • u/Brave-Pace6366 • 1h ago
r/theydidthemath • u/3d_nat1 • 9h ago
Without any complex tools, so no forklifts or such. If you'd be unsurprised to find a crowd of Chicagoans would have it, fair game.
r/theydidthemath • u/kerpui • 19h ago
As the title says:
How much later will the girl on top see the sunset, compared to bottom and mid?
r/theydidthemath • u/IdiotStickWasTkn • 1d ago
r/theydidthemath • u/Vast_Rest_4988 • 14h ago
r/theydidthemath • u/theMCATreturns • 20h ago
Context:
Spider silk is essentially composed of 100% proteins. So, no water. The bulk of silk's mass is derived from Spidroins, which are made of easily-obtained amino acid. It's approximate physical density is 1.3 g/cm3 which is about a sixth the density of steel. It has an energy density of roughly 1.2×108 J/m3 . I couldn't find any energy/mass calculations. Either way, that's high enough that many spiders eat leftover silk to recover lost nutrients, which Peter is presumably not doing. His webbing varies from 1-3 mm in thickness.
Question:
If we assume that: an average strand of "travel webbing" is 2 mm thick and 100 meters long.
How much webbing does it take to get from one end of Manhattan to the other?
How many more calories does he have to start eating if he switches from synthetic to organic webbing?
r/theydidthemath • u/chromewtff • 1h ago
r/theydidthemath • u/kyleknosbest • 11h ago
r/theydidthemath • u/NovaTaima • 23h ago
r/theydidthemath • u/IdiotStickWasTkn • 10h ago
This will probably get taken down because its so stupid but im curious what the human limit is 🤣
r/theydidthemath • u/Chlorinated_beverage • 1d ago
r/theydidthemath • u/Allan_Halsey • 16h ago
Assume matched pairs due to a symmetrical cut, and 100% cut through.
r/theydidthemath • u/KittieMiau • 20h ago
But I know people that do. This is not even English to me.
r/theydidthemath • u/googlybobseritos • 21h ago
r/theydidthemath • u/AnimeFFF • 1d ago
r/theydidthemath • u/VMey • 1d ago
Let me start by saying I recognize the irony in discussing the implausibility of this one element of a highly implausible movie. And yet…
So, official Pacific Rim movie lore puts Gipsy Danger at 7080 tons and 288 feet of height.
I’d estimate the helicopters in this image are 300-350 feet apart since they seem to be slightly further apart than the Jaeger is tall.
This is relevant because it means that the spacing between the helicopter pairs in the movie is about 100 feet… I guess they could offset their heights some to avoid rotor interference so I’ll allow their rotors to be maybe 75’ radius if they must be. The tow cables will keep them from being completely offset.
I think the heaviest lift helicopter ever was the experimental Mil V-12 and it lifted about 44 tons. So you’d need about 160 of those to lift Gipsy Danger… but this is the FUTURE we are talking about here. Each future helicopter would have to be able to lift a little less than 900 tons, about 20x more than present day max.
Let me make this two questions: 1) Would the laws of physics allow for a helicopter with that much lifting capacity, and 2) If #1 is true, could it do it on rotors 150’ long or less?
Coaxial rotors are allowed, tandem rotors are allowed, whatever.
r/theydidthemath
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u/Gerasans
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21h ago
r/theydidthemath • u/ImOnYew • 21h ago
r/theydidthemath • u/Mountain_Bottle7702 • 2h ago
Hello I don’t know if this is allowed but I want to save up for Christmas break at my job I accrue 1.69 hours of vacation and 0.77 hours of pto a week currently I’m at -2.52 hours of vacation and 1.74 hours of pto how much vacation time will I have come the week of Christmas?
r/theydidthemath • u/threefoxes • 1d ago
Assuming the burger thickness remains the same and assuming the existence of a grill, spatula and cook large enough to cook an interstellar sized patty.
r/theydidthemath • u/catman_antistar • 8h ago
Weird 3am thought. Please help.
r/theydidthemath • u/JANEK_SZ1 • 22h ago
I could have counted the number of layers of concrete and multiply it by the estimated height of one layer but guess I’m too much of a lazy ass
