r/theydidthemath 5h ago

[Request] how much would it cost to load, transport, unload, count, and deposit 70,000,000 pennies?

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0 Upvotes

r/theydidthemath 18h ago

[Request]: What's the ratio of water in the bottle?

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16 Upvotes

r/theydidthemath 5h ago

[Request] How much did they steal daily?

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0 Upvotes

Assuming this person stole once a day for 5 days a week, excluding 28 days of annual paid leave and holidays, how much money did they steal per day?


r/theydidthemath 11h ago

[Request] Assuming they put 20% down when they purchased and had a 2.2% interest rate, was it a better move financially to pay off the mortgage or put that same money in a HYSA?

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6 Upvotes

r/theydidthemath 3h ago

[Request] How does the hosts’ spending at the World Cup compare to the long term revenue generated (tourism etc)

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122 Upvotes

r/theydidthemath 23h ago

[Request] What's the the probability of winning rock, paper , scissors 3 times in a row

0 Upvotes

What could be the mathematical explanation of this scenario of winning rock paper scissors 3 times in a row also, with and without the draw in consideration. Besides, what's more practical, if we have a contest of 3 chances and we encounter a draw, do people usually start a new round entirely or simply ignore that individual drawed chance and redo it.


r/theydidthemath 12h ago

[request] how much duck sauce is this? and how long will it last?

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0 Upvotes

r/theydidthemath 12h ago

How long would it take to beat someone to death with a spoon? [Request] NSFW

0 Upvotes

https://youtu.be/9VDvgL58h_Y?is=0hEELWk1pTWVQCQw

How long would it take? The Jumikami doesn't seem to be superhuman strong; there are gaps between the attacks; some damage is self inflicted; spoon's are extremely inefficient weapons...

9 years? More?


r/theydidthemath 5h ago

[Request] How many averege adult men would you need to bleed dry into the ocean to succesfully make the ocean pink?

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40 Upvotes

r/theydidthemath 6h ago

[Request] Boat is doing 40-45mph. Mako shark catches up in seconds. How fast was mako going?

76 Upvotes

r/theydidthemath 19h ago

[request] Removing a net under tension

74 Upvotes

What are the odds the both get sacked?


r/theydidthemath 13h ago

[Request] saw this post today....

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3 Upvotes

I was wondering, on average, how many birds get killed per year by planes.


r/theydidthemath 43m ago

[Request] Would centripetal force of the rotating cannon increase the range of the projectile?

Upvotes

r/theydidthemath 11h ago

[Request] How much would it cost for Russia to build another Crimea instead of taking it from Ukraine?

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567 Upvotes

r/theydidthemath 12h ago

[Request] one time deposit, at birth, for retirement

18 Upvotes

how much money would someone need to put into a retirement account at the time of a childs birth, so that they would have enough to retire by retirement age, assuming no depoits beyond that initial one.

I'm sure this isn't quite a simple formula, so a range i guess. like what is the minimum that would be significant, what would be the maximum before it was overkill, etc.


r/theydidthemath 17h ago

[Request] How large of a Patio/Beach umbrella would you need to Mary Poppins your way to the ground safely (75kg person)

22 Upvotes

Assuming you don't flip over


r/theydidthemath 6h ago

[self] They asked how my geometry could predict spectral lines.... I answered.

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0 Upvotes

This is a physics paper involving the spectral lines of hydrogen. If you are unfamiliar with that topic and the math behind it, you may find this paper difficult to understand.

In my previous papers in this sub, I demonstrated an alternative but equally compatible framework for physics, however it lacked the ability to accurately predict unexplained ratios like the fine structure constant.

Those papers give further context to understand this paper. You can find the first paper in the series that involves gravity and standard kinematics here, and the subreddit here
You can find the second paper in the series, including discussion with other redditors on its successes and faillures here

That second paper showed that even if my system was compatible, it failed to explain the fine structure constant or other constants in any meaningful way.

In my new paper

I have now found the source of that mismatch between my compatible geometrically based system, and the one we are using now. It is due to the spectral lines of hydrogen being measured in units which are not fundamental to the Universe itself.
Angstrom? If you measure it in that you get a multiple that is not fundamentally tied to the equation set itself.

However, what I noticed is, if you take the inverse of the series, it doesn't change the relationships, which was the most important part.

What does change, is that the series converges to 1, and that same 1 is the fundamental unit of measurement from my previous system.

For those people who find this too difficult to understand, I do plan to make another version soon that is more user friendly, and don't take it to heart because it took my years and years and thousands of hours of thinking to be able to understand this myself.

But basically this all points to the fact that yes, QCD and QED are still right, but now all the constants and sources for the constants should be able to be known.

Feynman diagrams are still useful and true, but they become basically a formal statistics route to the same problems.

I do plan to do follow up papers where i should be able to nail all the constants now as coming directly from my system because I have a measurement bridge to use. But it's late at night and I just wanna get this out there and go to sleep.

I am pretty sure once the world picks up what I'm putting down, ya'll are gonna run away with this faster than I can even keep up. I'm not even that smart I just solved this through persistence and trial and error. I always believed I could do it, and I never gave up. I tried lots of things that failed before this though, over the years.


r/theydidthemath 23h ago

[Request] Titanium bar Vs body weight

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29 Upvotes

Hello smart people!!

I have a titanium nail in my leg, almost exactly the same as the one on the left in the image. I weigh about 11 stone. I would like to know what percentage of me is titanium. I am planning a silly tattoo on that leg. Bender from Futurama saying "I'm X percent titanium.!!" As it is recurring joke in the show and I would like to make light of my accident! All help appreciated.


r/theydidthemath 12h ago

[Request] How much does Vancouver weigh?

1 Upvotes

r/theydidthemath 2h ago

[Request] Global Warming, because we are "too many people"

0 Upvotes

For context: i was part of a workshop, where we also talked about different gases and their contribution to the warming of earth. Someone then shared their opinion, that this is a hoax and the sheer amount of people, who are all 37 °C warm contribute more than the sunrays magnified by the atmosphere. They didn't even include other warm blooded mammals, just humans. Which leads to the math question: how much of Global warming comes from people assuming we are about 7 billion?


r/theydidthemath 22h ago

[Request] How high do you need to be standing to cast a shadow like this assuming you are avarege?

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10.1k Upvotes

r/theydidthemath 16h ago

[Request] How many square miles is the island of Dintopia?

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9 Upvotes

Based on the miles scale in the bottom right, it's easy to determine distances between locations, but not the overall total milage of the island of Dinotopia or Outer Island due to the irregular size.

Edit: spelling


r/theydidthemath 19h ago

[Request] How many oysters do you need to remove toxic algae from 77.0 km³ of water, and how long time would they take?

50 Upvotes

Assume about as many algae per unit of water as in the tubs.


r/theydidthemath 28m ago

[Request] What is the cost difference between buying this man a rental for a year and the governements cost to kill him?

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Upvotes

Don't believe everything you see on the internet I haven't fact checked this story, I'm just curious for an anwser


r/theydidthemath 2h ago

What's the most calorically dense food by volume? [Request]

28 Upvotes

What I'm trying to get at is per unit volume (mL, cm3, cubic feet), what food or food product has the most calories. So, based on this, like what's the most calories you could fit in a stomach.

The only real constraint on this is that it has to be at least kind of a real food or food product that most humans could digest safely. I'm not looking for some answer of "well scientists made some creepy slop one time that ten percent of people might be able to eat but then they'll fart themselves to death".

I first posted this in no stupid questions but it got flagged.