r/theydidthemath • • 4h ago

If we placed every single man made object currently in existence on the lunar surface (everything from every thumbtack to every skyscraper), how crowded would the Moon’s surface be? Would we be able to see the objects from earth with a naked eye?[request]

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0 Upvotes

r/theydidthemath • • 15h ago

[Request] Can someone check if this is actually true?

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888 Upvotes

r/theydidthemath • • 18h ago

[Request] How far did this fool fly, then tumble?

113 Upvotes

r/theydidthemath • • 16h ago

[Request] Cell Division in the Planck Time - how long would it take to form a new body?

1 Upvotes

As the title says, if your cells would split in the planck time 5,391247 ⋅ 10⁻⁴⁴ seconds and it starts with just a single one cell (not already a formed body with a lot of cells), how long would it take to form all cells of the average human body?

The body has, depending on the source, 30-36 trillion cells, let's just go with 30 trillions for the calculation here. Let's ignore the different forms of cells and different parts of the body in this example

I'm very bad at math, but does it not even become much faster with splitting of the cells, because after the first one, there are two cells and from there on, there are four cells and so on?

Thanks for any replies!


r/theydidthemath • • 16h ago

[Request] What is the computational load of the observable universe?

3 Upvotes

In other words, how much computing power would it take to compute the exact position and orientation of every elementary particle down to the Planck length at a refresh rate of 1 per Planck time?

Edit: People are getting hung up on the simulation analogy so I removed it


r/theydidthemath • • 13h ago

[Request] The federal budget allocates roughly 10 times more per capita to Americans over the age of 65 than to those under 26.

48 Upvotes

That is a pretty mind-blowing statistic, if true.


r/theydidthemath • • 3h ago

[Request] - How far did this guy travel during the video? A Bugatti Chiron accelerating to 417kph (260mph) on the German autobahn

10 Upvotes

r/theydidthemath • • 7h ago

Line graph [request]: use of the word “unhinged” yearly since 2000

0 Upvotes

r/theydidthemath • • 16h ago

[Request] how many male pages vs female wikipedia pages are listed as “for promotional content”?

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1 Upvotes

r/theydidthemath • • 18h ago

[Request] Can Minecraft methods be used in the deep ocean?

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0 Upvotes

Hi guys. Can someone calculate the amount of pressure that a very strong hypothetical material would be subjected to at the bottom of the Mariana Trench? Thanks


r/theydidthemath • • 2h ago

[Request] I am genuinely curious how much distance this person crossed over the course of the video.

2 Upvotes

r/theydidthemath • • 13h ago

[Request] Is my calculation of a 1-ton asteroid's kinetic energy at 20 km/s correct?

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0 Upvotes

r/theydidthemath • • 3h ago

[Self] Lottery Probability

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0 Upvotes

My husband and I have been doing these tickets lately, as the are super fun to scratch! I know we are not going to win, but I was wondering what the probability of getting a bingo - a big one (>$1000) off a card like this?


r/theydidthemath • • 13h ago

[Request] If this where to be rendered at the minimum necessary resolution to mantain 1080p at the last drawing, what whould be the file's final size?

0 Upvotes

r/theydidthemath • • 13h ago

[Request] How Much Storage Would It Take to Store Every Possible Chess Game as a Video?

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0 Upvotes

r/theydidthemath • • 7h ago

[Request] Can anyone workout how fast that spiders strike is?

216 Upvotes

r/theydidthemath • • 4h ago

How many mosquitoes would it take to suck the entire human population dry? [request]

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47 Upvotes

r/theydidthemath • • 9h ago

[Off-site] sea men math

0 Upvotes

r/theydidthemath • • 14h ago

[Request] realistically how long would it take to roll that thing out of the ocean to steal it?

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4.0k Upvotes

r/theydidthemath • • 2h ago

[Request] Would the cube really be millions of degrees?

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982 Upvotes

Also would you be full? What would happen if you tried to eat it?

I suppose that first question could be disregarded if the grilled cheese cube is in fact millions of degrees lol

Feel free to answer it anyway tho!

Edit: Phrasing


r/theydidthemath • • 11h ago

[Request] How powerful would a human legs need to be in order to do this?

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3 Upvotes

A 15 kg caracal launches vertically and reaches a takeoff velocity of 7 m/s. Assume its centre of mass accelerates uniformly from rest over a vertical distance of 0.50 metres.

Using Newton's laws of motion, estimate its average upward acceleration and the average net force acting on its centre of mass during takeoff.

Then calculate the average upward ground-reaction force required to produce that acceleration, including the force needed to counteract gravity.

How would the results change if the acceleration distance were only 0.25 metres?

How powerful would a humans legs need to be in order to do this?

Assume they are 80 kg person.


r/theydidthemath • • 15h ago

[Request] Intercontinental Ballistic Trebuchet?

2 Upvotes

I've had an ecofriendly idea to replace Trident!

How big would a trebuchet have to be to lob a nuclear warhead from London to Moscow? Beijing? Paris? How fast would it have to be moving?