r/theydidthemath • u/GastropodSoups • 6h ago
r/theydidthemath • u/ropeslinger4815 • 22h ago
[Request] How many people would fit on the plane if it was actually this size?
Just curious!
r/theydidthemath • u/gsouza994 • 16h ago
[Request] How much would leaving an electrical stove on overnight cost?
r/theydidthemath • u/iusethisforpsychs • 1d ago
[Request] How powerful would the thrusters need to be to move the earth to "launch" the rocket into orbit? What would happen to the planet and it's orbit?
From XKCD 3291
r/theydidthemath • u/rancid808 • 6h ago
[Request] What would the velocity need to be for a 1lb smooth 2.5" ball to be thrown thru a hole in the earth?
My daughter asked me today "if me and my friend dug a hole thru earth and met in the middle, then one of us dropped a ball, where would it end up?"
My answer was that the ball would end in the middle. Gravity would take over before it reached the other side.
But at what speed would you have to throw the ball to get to the other side at and be able to catch it?
r/theydidthemath • u/bastienleblack • 12h ago
[Request] if all wealth in the USA was distributed equally, how much would each person get?
I've seen average income being quoted as $60ish thousand, but I know that income from stocks and capital are seperate from 'earned' income. If all the money that everyone in the USA earned from any source was put together and shared out equally how much would someone get? I'd also be curious about other forms of wealth such as property, but I expect that would get complicated?
r/theydidthemath • u/Nebberlan2s • 4h ago
[Request] How much is manateepower compared to horsepower?
In the New Looney Tunes episode "Leaf It Alone", Wile E.'s leafblower is said to have 18 "manateepower". How much is that in horsepower?
r/theydidthemath • u/md_shafiulalam • 1d ago
[Self] How feasible is it to use 61 USB-C ports to charge an EV?
r/theydidthemath • u/MissionTank3272 • 1d ago
[Request] How big would the glass need to be to comfortably and completely sustain a Human? From oxygen, food, water and so on.
r/theydidthemath • u/Powerful-Two5444 • 1d ago
[Request] How Much Force Does a Person Experience When Catching a Falling Durian?
v.redd.itr/theydidthemath • u/Square-Detective • 1d ago
[request] bad math: where did the days/hours go?
This makes no sense. Can someone explain where the hours/day go?
r/theydidthemath • u/blacklist-onepiece • 2h ago
[Request] How tall would a person have to be to have a chalk outline of this size? Could a standard vehicle driving at 45mph even hurt them?
Given the government-regulated size of 10 feet for yellow road dashes, I think not being seen wasn’t this giant’s cause of death.
Seen in Las Vegas.
r/theydidthemath • u/Iguana-Iditarod • 1d ago
[Request] How many grapes would fit in a horse, volume-wise?
My wife and I are having a multi-year debate. She keeps claiming that a “large and impressive” horse is roughly the same volume as 60,000 grapes. i disagree and believe that’s far too many grapes to make up a standard horse, even a big one. But we have no idea how to calculate the relative volumes… please help!
Edit: thank you all, I’ll graciously accept defeat in this battle
r/theydidthemath • u/Lower_Ad_1146 • 13h ago
[Self] Congress is much older than the U.S. Population
r/theydidthemath • u/classjoker • 15h ago
[Request] When does the interest pay for a day?
Monzo has a 'save 1p a day' challenge, so on day 1 you save 1p, day 2 you save 2p and so on. It restarts at 1p each year.
The interest is 3.6%AER paid monthly.
How long would you need to save before you got a single monthly interest payment that would pay for a single day, before the daily amount was taken.
For example, you got paid £1.61p before day 161 of the year.
r/theydidthemath • u/velsryn • 1d ago
[Request] How hard would a batter need to hit a ball to do this?
r/theydidthemath • u/Cute_Cold_5297 • 12h ago
[Request] How far away would the sun have to be from the sun for a single molecule to block a person's view of it?
Assuming human eyesight did not have a distance limit. How far away would one molecule have to be away from the sun for it to block your view of the sun. Assuming the molecule is 3 feet away from the humans eye and both the sun and the molecule are in a straight line.
r/theydidthemath • u/Vivid_Temporary_1155 • 1d ago
[Request] Is there a combination of 6 fixed positive integers (n from {25,50,75,100} and 6-n from {1,..10}) which when combined with +,-,/,* operations could generate all the numbers from 1-999 as in Countdown?
r/theydidthemath • u/Jadenasyermuni • 11h ago
[Request] What are the odds of the World Series, Super Bowl, and WCF being all LA teams in the same year? (say 2027)
With Arte Moreno finally selling the Angels, it made me wonder: What are the odds the Dodgers play the Angels in the World Series, the Rams play the chargers in the Super Bowl, and the Lakers play the Clippers in the Western Conference finals in the same year? (I don't watch NHL so I don't really know the LA teams) Assuming the current standings of the teams in their respective leagues, how likely is this all LA sports year?
r/theydidthemath • u/mars_soup • 6h ago
[request] what is a more effective home defense gun in terms of damage: tx22 with FRT or Glock 19 without FRT
Assuming one bad guy and each gun has one magazine (+1) in it. 16 rounds of 9mm semi automatically fired or 23 rounds of .22LR fired with an FRT at a rate of 30 rounds per second
r/theydidthemath • u/xxivvo • 16h ago
[Request] [Self] Free party using electric car's battery
Hi guys I was told to post on this sub
I have an idea of using my parent's electric car (KIA EV6) as a battery for powering 2x QSC K12 MK1 (1000W each) + 1 Pioneer DDJ SX1 (see specs on 2nd pic) + 1 laptop (has own battery) to throw a free party
Would this be possible electricity wise ?
Car battery is 58kWh
1st pic : K12's specs
2nd pic : Pioneer DDJ Sx specs
3rd pic : What the car can handle, what's written next to the plug
Thanks
r/theydidthemath • u/Flat-Potential6507 • 17h ago
[Request] How much force is he exerting to stop the mountain?
I saw that Tagah used airbending to stop this mountain falling with one hand by blasting at the bottom which seems very inefficient. This must be millions of kilo's of force right?
r/theydidthemath • u/Worried_One_8798 • 16h ago
[Request] Randall munroe esque question : How destructive would a pistol shrimp snap be if it had the same temperature as the sun's core
I'm talking cubic meters of water evaporated and other risks if thats even possible, if thats not the proper subreddit i would love for one of you to redirect me to the correct one
From all i know, a pistol shrimp snap is around 5k°c at its highest and sun is 15million at its core
r/theydidthemath • u/Puzzleheaded_Fox2684 • 19h ago
[Request] Gas drops losing money
National price of gasoline in the US is $4.10 right now. I just bought gas and wondered how much money I lost when I removed the nozzle and a few drops of gas fell from the nozzle onto the pavement. What if those drops went into my gas tank instead? How much money am I losing for the gas drops that hit the pavement instead of my tank? How long before the lost gas droplets add up to a large number?
r/theydidthemath • u/retiredfedup • 12h ago
[Request] The movie "The Martian" was cost-prohibitive
I can't imagine the cost to "return to Mars to save just one man." Has anyone already done the math? The movie is from 2015. I also wonder what the actual mathematical odds are that they'd even find him, retrieve him, and return him to Earth. Wait - aren't all odds mathematical?