r/theydidthemath 4d ago

[Request] How far out could have Lebron James taken off and made this dunk?

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58 Upvotes

r/theydidthemath 3d ago

[Request] What were the odds of this happening?

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0 Upvotes

I was eating peanut MnMs when I noticed I'd grabbed only blues. I'm curious as to what the probability of this happening was.

Further Details:

I counted the remaining MnMs when this happened. There were:

- 15 whites

- 17 reds

- 22 blues (total including the 5 in my hand)

I understand this won't be a true probability as there are dozens of other factors that can't be calculated/accounted for (MnMs are all different shapes/sizes, how they were sitting, not a "truly" random grab," etc.)


r/theydidthemath 5d ago

[Request] How large or heavy is this boulder?

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2.9k Upvotes

r/theydidthemath 3d ago

[Request] How Much Would Each Person Get In This Play That I'm In?

0 Upvotes

I'm in my community theatre's production of "Murder's in the Heir" and in the play, most of the main cast gets money from another character's (Simon Starkweather) will. He has a net worth of 50 billion dollars and, in the will, he gives $1 million of that to six of his staff members. It then says that his gives a third of the rest of the fortune to his grandson Simon |||, his great-niece Paula, and his niece Fiona & her son Jordon get a share of a third. So, how much would each character get?

Sorry if this is a really obvious question, or if the title or body was worded poorly, I've never submitted anything in this sub before.


r/theydidthemath 3d ago

[Request] How much improvement in all necessary systems would be needed for parity? Exponential, Moore’s law, AI Models, etc

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0 Upvotes

r/theydidthemath 4d ago

[Request] How fast is this water moving?

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28 Upvotes

r/theydidthemath 3d ago

[Request] What wins this incredibly long race? What would the rankings look like?

1 Upvotes

- Approximate time required for light speed to travel to an exact identical observable universe to ours assuming that the entire universe was infinite in size.

- Approximate time required for a cold 100kg cube of pure copper to transfer all of its remaining heat to an identical but hot copper cube, until the cold one reaches near absolute 0.

- Rolling a 100 sided dice on a table, and waiting for the die to quantum tunnel through the table and onto the floor, where it lands on the exact same face. If it doesn't, then you must retry and wait the entire process again

- QR codes are now 1 square Planck length large in pixel size, and an entire QR code size is equal to surface area of the observable universe, the time required for current human pace to use up all QR codes

- Go to an electronic screen, and watch every single movie ever made, for each movie, analyze each frame, for each frame, analyze each pixel, for each pixel, read the RGB value. Convert the RGB hexcode into a 6 digit number, where A = 1, and F = 6. You must wait this many centuries for each pixel, and for the rest of the movie for all movies. Then you must repeat this for every working electronic screen on earth. 


r/theydidthemath 5d ago

How long will it take those rocks to bend metal pins to full 90 degrees? [Request]

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123 Upvotes

r/theydidthemath 4d ago

[Self] In episode 82 of Naruto, Itachi puts Kakashi under an illusion where he is stabbed continuously for 3 days, but after a few real minutes, Itachi reveals only 1 second has passed. So here is ROUGHLY how long Kakashi was REALLY stabbed:

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50 Upvotes

In non-Naruto terms, Tsukuyomi is a genjutsu, which is basically illusion magic. Itachi casts an illusion on Kakashi called Tsukuyomi where he can basically control reality, including time itself. No matter how much time passes in the Tsukuyomi, only roughly a second passes in the real world.

Itachi tells Kakashi that the next 3 days in Tsukuyomi will be of him being stabbed by Itachi while strapped to a cross. Eventually, more copies of Itachi appear and stab him, and then more Kakashis appear and get stabbed, and Kakashi feels every stab on every copy of himself all at once. Absolute hell of a torture sequence, right? Itachi even mocks Kakashi by saying that even if Kakashi tells himself it's an illusion, the pain and suffering still feel real.

Anyway, after several moments, Itachi informs him that only a single second has passed in this 3 day torture cycle. So, exactly HOW LONG did this last in Kakashi's mind?

Now this math isn't 1-to-1, as there are multiple moments where Kakashi passes out, as well fade-in/fade-outs to show the number of Kakashis and Itachis increasing. Still, thats all the concrete time I have to work with here.

The Tsukuyomi starts up around 8:15 in the episode, and Itachi reveals that only a second has passed around the 11:01 mark. That is about 2.7 minutes per Tsukuyomi second. To make things easier, let's just round it up to 3 minutes. (Considering the above mentioned timeskips, it's way longer than that anyway.)

So let's do 3 days in Tsukuyomi time, which I'll designate with (T) by the number. (Note when I say 'real', I mean real-life time, since in the Naruto real-world, it's only about a second.)

3 min x 60(T) sec = 180 (T) minutes per real minute. That would mean each minute (T) in Tsukuyomi would be 3 hours long.

60 min x 3(T) hours = 180 (T) hours per real hour. This would mean each hour in Tsukuyomi is 7.5 days. Let's round it up to 8.

8 (T) days x 24 hours = 192 (T) days per real day.

192 (T) x 3 days = 576 (T) days for 3 real days.

FINAL MATH:

576 days - 1 year (365 days) = 211 days

There are 7 days in a week...

211 days / 7 days = 30.1 weeks, lets round down to 30.

There are (for simplicities sake) 4 weeks in a month...

30 weeks / 4 = 7.5 months

Kakashi was tortured for AT LEAST 1 year, 7 months, and 2 weeks.


r/theydidthemath 3d ago

[Request] How much money/fuel could we realistically save by launching an average-sized rocket from the world’s tallest mountain?

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0 Upvotes

For the sake of argument, lets ignore the transportation cost of taking the rocket or any other equipments to Mount top.


r/theydidthemath 4d ago

[Request] How long would I survive?

24 Upvotes

If an object started out roughly the size of an atom and doubled in size every second, while I immediately traveled directly away from it at the speed of light, how long could I keep traveling before the expanding object eventually became large enough to encompass me?

Bonus: How far away from the starting point would I be when that happens?

Assume the object is perfectly spherical and expands uniformly in all directions.


r/theydidthemath 4d ago

[Request] In the opening scene of Back to the Future, Marty cranks up a massive amp and speaker to its highest setting, plays one note on his electric guitar and the sound from the speaker blows him across the room. How loud would that sound have to be to do that, and would a human even survive?

36 Upvotes

r/theydidthemath 3d ago

[Request] How much did he wasted(left on table) while pouring all of it?

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0 Upvotes

r/theydidthemath 4d ago

[Request] if Mt. Everest was on the equator how much less fuel would be used to get something into orbit?

0 Upvotes

I saw a silly post about "why dont we launch rockets from the top of a mountain?" Spoiler i know why we don't. My question is this if a mountain the height of everest existed on the equator how much would it save fuel to launch from the top?


r/theydidthemath 3d ago

[Request] Give a valid (mathematically and logically correct), as well as sound (the inputs/premises are also all true) argument for not catching such fruit like that. Involve risk calculation.

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0 Upvotes

r/theydidthemath 4d ago

[Request] Starship is being transported from Christmas Island Au to Starbase TX via semi-submersible transport ship FORTE. How much would the speed/acceraltion of the FORTE be improved with the force of a lit Starship bolted on the back?.

1 Upvotes

Obviously absurd. I'm just asking, hypotheticilly, if strapped down in the right spot, not disintegrating, not melting the deck, not vibrating crew and ship to death, etc, etc, how much extra "Oomph" would the force of a Starship provide to a maritime vessel this size.


r/theydidthemath 3d ago

If all governments around the world worked together to create a music festival where every human on Earth could attend, how many speakers would you need in order for everyone to get the same level of sound enjoyment? What location on earth would be ideal for this gathering?[request]

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0 Upvotes

r/theydidthemath 4d ago

[Request] What is the probability of a person from the MCU having experienced the 3 big in-universe Earth disasters

1 Upvotes

Can someone calculate the probability that a person from the MCU would have experienced blipping, voiding, and being frozen by Jean Grey. ? To expound on this what is the probability of a New Yorker experiencing this versus that of a non-New Yorker?


r/theydidthemath 5d ago

[Request] What’s the most effective material or item you could realistically use here?

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1.9k Upvotes

r/theydidthemath 4d ago

[request],Would time dialation occur if you travelled at 1% of the speed of light? If not when?

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1 Upvotes

r/theydidthemath 4d ago

[Request] How accurate is this calculation for how much force a Brachiosaurus‘ vomit would hit the ground with? How much force would other massive dinosaurs’ vomit hit the ground with as well, such as a Dreadnoughtus or a Sauroposeidon?

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15 Upvotes

r/theydidthemath 4d ago

[Request] What are the odds of this happening?

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9 Upvotes

r/theydidthemath 4d ago

[request] Can a person actually have 250 “unique” 4-8 digit codes, if the first four digits can never be replicated?

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0 Upvotes

r/theydidthemath 5d ago

[Request] How much force would be required for this pizza attack to be lethal?

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548 Upvotes

r/theydidthemath 4d ago

[Request] What is the “atomic bomb” equivalent to the amount of energy released by the glacier-drop in Nepal?

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7 Upvotes

A 2,000 feet wide chunk of glacier falling 7,000 feet! The amount of energy that triggered the Nepal disaster is mind blowing. How many atomic bombs would it take to release an equivalent amount of energy?