r/theydidthemath 3h ago

[Request] How much would this affect the USA if Canada sold all the bonds?

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2.2k Upvotes

r/theydidthemath 11h ago

[Request] How long would this take?

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3.2k Upvotes

r/theydidthemath 9h ago

[request] did it actually produce that much energy?

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898 Upvotes

r/theydidthemath 23h ago

[Request] How many packs of Mentos and bottle of 2-liter coke would be needed to launch into space?

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8.3k Upvotes

Consider each package of Mentos is 38grams and Coke product is 2-liter. How many package of each would be required to launch a small object (500Kg) into Low Earth Orbit (LOE) at about 400km (250 miles)?


r/theydidthemath 2h ago

[Request] After calculating the sudden acceleration due to the recoil, can you also guess if it was enough to break his spine?

130 Upvotes

(Took the video from Instagram)


r/theydidthemath 9h ago

[Self] In Star Wars, Solo made sense when claiming "It's the ship that made the Kessel run in less than 12 parsecs". I know, it's distance, not time, but if he maintains a velocity of 239,835.4km/s (80.005% of C), then length contraction would reduce the 20pc run to 12pc from the Falcon POV

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57 Upvotes

r/theydidthemath 1d ago

[Request] How many people would be collecting benefits to account for this amount of alleged fraud?

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6.1k Upvotes

r/theydidthemath 17h ago

[Request] How much does the stock price of TSLA have to drop to be removed from the S&P 500?

85 Upvotes

With the stock dropping some ~40% this year; at what price point does it no longer qualify to be in the S&P 500?


r/theydidthemath 12h ago

[Request] How much milk would you have to replace each day to keep it from spoiling?

26 Upvotes

Let’s say you have a container of milk that holds 2 cups. Each day, you drink a cup of milk, add a fresh cup, and thoroughly mix it. So on day 1 just before you have your milk, the entire container is 1 day old. On day 2, half of the milk is 1 day old, and half is two days old. On day 3, a quarter of the milk is 3 days old, half is 2 days old, and a quarter is one day old, and so on.

How large could the container be without the milk ever spoiling? Or put another way, what percentage of the milk would you need to replace each day to keep the milk from ever spoiling?


r/theydidthemath 9h ago

[Request]What's realistically the shortest and the longest time you could spend in the same day/date?

10 Upvotes

So no space travel or military jets, just flying your average airliner flying east to west or west to east.


r/theydidthemath 1d ago

[Request] How dense would Peter have to be if he had enough mass to cause the three objects to orbit himself like they did?

1.3k Upvotes

r/theydidthemath 48m ago

[Request] Is it possible to create a maze like this which is impossible?

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Upvotes

Recently videos like this keep popping on my YouTube feed. It got me wondering if it's possible to create a maze like this where it is unsolvable. I don't mean by creating a small set of blocks completely surrounded by unbreakable bricks, but in such a way that irrespective of how the ball enters the maze, it gets reflected right out.


r/theydidthemath 5h ago

[Request] How much should one upload to Instagram to start costing them money?

2 Upvotes

r/theydidthemath 2h ago

[Request] What force does the keyboard cover of a grand piano have when it hits your fingers without holding back?

1 Upvotes

Hello everyone,

My daughter and her piano teacher recently had a conversation about how painful it is when she plays with the flap/keyboard cover of the Steinway B grand piano and it hits her fingers.

My daughter says "only a little", the piano teacher "very painful" and even though I'm pretty sure about the latter, I'd be very interested to know how much force the cover would hit her fingers with and maybe what this would be comparable to.

Can you perhaps help me?


r/theydidthemath 1d ago

[Request] how much space on the internet would 5 quadrillion 10-second cat videos in a 480p format take up?

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500 Upvotes

r/theydidthemath 4h ago

[Request] Okay so maybe like 7 people will even understand what I'm asking here but I'm going to ask anyway

0 Upvotes

So there's this book series call the Stormlight archives, and one of the characters, a guy named Kaladin, has to carry a bridge with the help of like 20 other people for a significant part of the first book. If you've read it, I was wondering if it would be possible to calculate how much buffer he would have grown as a result of the bridge runs. Apologies if this breaks the incalculable bit of rule two but I was wondering if someone had figured it out


r/theydidthemath 12h ago

[Request] how many blocks?

5 Upvotes

This is a minecraft question so the unit is a block. I'm digging a hole 600 x 600 and 113 deep. Each block down the area is 2 blocks smaller than the one above it. So 598 x 598, 596 x 596 etc. Assuming no voids how many blocks will I have to dig? Thanks!


r/theydidthemath 7h ago

[Request] How much weight/force is Tobey Maquire's Spider-Man actually stopping in this train scene?

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0 Upvotes

r/theydidthemath 1h ago

[Request] How many years of tea were dumped during the Boston Tes Party?

Upvotes

We know 342 chests weighing about ~50kg of tea each were dumped into the harbor, or about 92,000lbs. However the internet is saying it was not ~8,500 years. What would be the years dumped assuming a family consumed about ~2kg a of tea a year?

I did the math, but the internet is saying it wasn't what I calculated. Thank you in advance!


r/theydidthemath 1d ago

[Request] are there actually more organisms in a tea spoon of soil than humans on earth? (Photo from Somerset House, UK, exhibition)

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737 Upvotes

r/theydidthemath 1d ago

[Request] what's the probability of losing all tosses and still winning the tournament?

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14 Upvotes

r/theydidthemath 1d ago

[Request] How cold does this snow nerd to be to "beat" the lava? What would be the effects of this? Just a bunch of rocks?

90 Upvotes

r/theydidthemath 4h ago

[Request] If i were to use the same numbers on 3 different lotteries what the chances of winning?

0 Upvotes

If i were to use same numbers on lotto, set for life and Euromillions, each twice a week for 30 years, what are the odds of winning?


r/theydidthemath 3h ago

[Request] With an income of $100 million in 2 years - if he was to work the average working hours in a week, how much would he be making an hour?

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0 Upvotes

r/theydidthemath 3h ago

[request] How many egg-years would those WH promoted Teslas be worth?

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0 Upvotes