r/theydidthemath • • 21h ago

[Request] How much speed does she need?

9.1k Upvotes

r/theydidthemath • • 13h ago

[RDTM] What is your masturbation mileage?

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271 Upvotes

r/theydidthemath • • 6h ago

[Request] These numbers seem fishy to me.

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71 Upvotes

Can anyone shed some light on the truth of these numbers


r/theydidthemath • • 15h ago

[RDTM] how many Scaramuccis did Kate Zacharia last as White House press secretary?

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402 Upvotes

r/theydidthemath • • 2h ago

[request] is this technically possible? What’s the math behind this?

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30 Upvotes

For context, this was found under an Instagram video of a nuclear engineer reacting to a low poly shorts video. Curious to see what the math looks like for this proposed situation!


r/theydidthemath • • 19h ago

[Request] On average, how fast would you need to drive to make it to each city in said time frame?

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447 Upvotes

Saw this and now am genuinely wondering how fast you'd need to drive.


r/theydidthemath • • 1d ago

[Request] How many children could he realistically educate with that amount of money?

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5.4k Upvotes

r/theydidthemath • • 22h ago

[Request] In 'Project Hail Mary', Grace gives Rocky a laptop that has "All of Human Knowledge". How much Storage (Terabytes) would that Laptop need, since we do not have internet access.

477 Upvotes

There is probably a bunch of digitial archives or something for universities or researchers, like Encyclopedias or Britannica's. But my first thought was "how about downloading the entirety of wikipedias database?"
So i suppose thats my secondary question too.


r/theydidthemath • • 11h ago

[Request] How much would Lady Gaga’s meat dress cost at today’s grocery stores?

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27 Upvotes

r/theydidthemath • • 12h ago

[Request] You're not winning the lottery, guy.

26 Upvotes

I was in a discussion with a co-worker about the lottery. He plays once a week and has for a number of years. I mentioned that I didn't. He said he always plays the same numbers every week, not because they're lucky, but because he believes that playing the same numbers every week somehow increases his odds of winning. I couldn't get any sort of rational explanation for this and I tried to explain to him that because every lottery drawing is from all the possible numbers available in the drawing, he has the same possibility of winning regardless of the numbers that he plays. Only if he bought more than one ticket with different sets of numbers, in any one drawing, did he actually increase his chance of winning. He refused to believe that I was right and he was wrong. Neither of us really has the math to justify our opinions. Can someone help prove me right?


r/theydidthemath • • 1d ago

[Request] I genuinely wanna know

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3.7k Upvotes

r/theydidthemath • • 18h ago

[Request] How many Stephensons Rockets would it take to pull one Union Pacific Big Boy?

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42 Upvotes

r/theydidthemath • • 2m ago

What are the chances of this happening? [Request]

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• Upvotes

Curious if this is as unlikely as it seems at first glance.


r/theydidthemath • • 1d ago

[Off-site] I will be infinitely rich in ∞ years!

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2.0k Upvotes

@GLabsPlus on Twitter (X) calculates the total amount of money you can get if you were to receive the amount specified by that term of the harmonic series every minute.


r/theydidthemath • • 10h ago

[Request] My friend asked if an object 7.5x the Mass of Earth could replace Jupiter and still hold it's largest moons, and I set out to do the math. Can anyone here smarter than me point out if there's anything wrong?

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6 Upvotes

This assumes this object remains the same velocity and is in the same position that Jupiter was in. This also assumes it will keep the same orbit as well. Also sorry for the terrible handwriting.


r/theydidthemath • • 2h ago

[other] You can slice the real number line into an infinite number of infinite slices, each of which can be sliced the same way ad infinitum

0 Upvotes

r/theydidthemath • • 1d ago

[REQUEST] How much money could you reasonably make every day donating blood and still live a healthy life?

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876 Upvotes

r/theydidthemath • • 1d ago

[Request] : how large would a building have to be before the curvature of the earth would have to be taken into account during design and construction?

136 Upvotes

There’s a big warehouse/fulfillment center thing being built near my house and every time i drive past it I think about how the curvature of the earth must be measurable across it, though obviously only in millimeters so it wouldn’t impact design or construction. How big would a building have to be to have to take it into account?


r/theydidthemath • • 14h ago

[Request] What is the size of the trolls in this Swedish children song?

3 Upvotes

Translated it goes like this:

Once there was an ugly, old and wicked troll,
who came to this country in a hot-air balloon.
He settled down in Småland,
with his head on Åland,
and his feet, at the very same time, in Lund.
And the old troll had a troll wife, too.
Her nose was as big as all of Amsterdam.
She cooked up the food
and served it on plates,
a cake made out of sand,
as big as all of Svealand.
And the old troll had an old tomcat,
who was as big as the whole Kattegat.
Far away in Yokohama,
you could hear him yowling,
and his tail was as round
as the whole Öresund.
And so this little tale ends for now,
for the trolls have already left in their balloon.
Now they must be near the North Pole,
or perhaps right in the middle of the Sun.
And dear friend,
they'll never come back again.

I can see that the geographic references is both here and there but could the size of the trolls be decided?


r/theydidthemath • • 8h ago

[request] Downforce to lift a 2 ton car

0 Upvotes

The rocket has massive thrust generated by fuel to lift it off. If the Tesla roadster thrust is purely generated by air and electricity how much energy is needed to lift the car like how it was shown in the demo? How much air will it take to lift it up?


r/theydidthemath • • 9h ago

[Request] if the powerball lottery was hidden in a building instead, what are the equivalents of guessing the right building/home?

0 Upvotes

For example, getting 1 red powerball number gets you 4$, a 1 in 38 chance

The buildings are something close to

100 million single family homes (SFH).

5.2 million multifamily residential buildings (everything from duplexes to large high rises), containing 40 million housing units.

5.5 million commercial buildings.

350,000 industrial buildings.

240,000 military buildings.

So the question is, what powerball odds are equivalent to things like “guessing the right state” or “guessing the right street” or “guessing the right county”


r/theydidthemath • • 1d ago

[Request] Is coal waste really that radioactive?

101 Upvotes

Sounds extreme when compared to actual nuclear energy


r/theydidthemath • • 1d ago

[Request] What percent grade is the incline?

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17 Upvotes

r/theydidthemath • • 1d ago

[Request] How hot would the surrounding air and rock Frodo and Sam are on be with all that lava from Mount Doom be? Lord of the Rings Return of the King.

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343 Upvotes

Something I’ve always wondered was could people actually survive being on that rock with all that lava spilling down the mountain side? From what I see lava can be anywhere from 1300 degrees Fahrenheit to 2200, I mean that’s hot right? I’d expect the heat to rise up and warm the air around them and even more so the lavas heat would conduct through the rock they’re on and burn them. Could they even breathe the air? I know it’s fantasy and all but let’s put people in that exact scenario in real life.


r/theydidthemath • • 12h ago

[other] you can slice the set of all numbers (positive and negative) into an infinite number of infinite slices, each of which can be sliced the same way ad infinitum.

1 Upvotes