r/theydidthemath • u/Rich-Recognition-814 • 6h ago
r/theydidthemath • u/Downtown-Security-11 • 4h ago
[request] Vali Graham's world record 42.5-meter freestyle waterfall dive in Blue Mountains, Australia.
He sustained a fractured skull, a fractured T11 vertebra (spine), a fractured sternum (chest), a concussion, and a burst eardrum- as per google.
How fast was he traveling at impact? And how hard of an impact would that have been?
r/theydidthemath • u/winkysocks21 • 8h ago
[Request] Hypothetically speaking, how big would a gas voucher need to be to fully offset the increase in gas prices
r/theydidthemath • u/Mean_Initiative_5962 • 12h ago
[request] How much cooking would offset the emissions for building it, compared to keep using an electric/gas stove?
Not sure if the wording is right but didn't want to make a walltext title, the point is: making a parabolic mirror is still consumption, but once you have it that's a literal 0 emissions from heat. How long (let's say hours of gently simmering) would it take to balance the emissions for building it, compared to not building but still using a regular induction plate or gas stove?
(yeah, I know the energy mix makes a difference for induction, choose what you want)
r/theydidthemath • u/VoceDiDio • 7h ago
[Request] Could a Holmes-Patel Stare-Off PPV pay off the national debt?
r/theydidthemath • u/thelouvre_20 • 13h ago
[Request] What would the price difference equate to? How would preparation time and labor influence the cost?
r/theydidthemath • u/maquna • 20h ago
[request] is this technically possible? What’s the math behind this?
For context, this was found under an Instagram video of a nuclear engineer reacting to a low poly shorts video. Curious to see what the math looks like for this proposed situation!
r/theydidthemath • u/capilot • 4h ago
[Request] How much energy do you get per acre of solar panels vs an acre of corn grown for ethanol
I googled that, but the difference seems too much to believe. Google says an acre of solar panels will produce 250-500 MWh/year while an acre of corn produces about 12.3 MWh/year.
So an acre of solar panels replaces 20-40 acres of ethanol corn? That seems too good to be true. And TBH, I trust the Google AI about as far as I can throw it.
r/theydidthemath • u/Independent-Cup1763 • 10m ago
[Request] total number of unique minecraft recipes
i saw some attempts online but none of them got an actual answer and just said that the math was too complicated , i am also happy with an answer which uses code , also just ignore the spelling , english is not my first language
r/theydidthemath • u/Academic-Pie-1040 • 1d ago
[Request] These numbers seem fishy to me.
Can anyone shed some light on the truth of these numbers
r/theydidthemath • u/XNonameX • 10h ago
[REQUEST] Since the bot farm was bombed, how much has internet traffic across social media sites dropped?
I'm sorry if this isn't the right place to ask, I think this sub fits best, but I also didn't see the same request in the subs history.
Thank you.
r/theydidthemath • u/DonkeyBallExpert • 1d ago
[RDTM] how many Scaramuccis did Kate Zacharia last as White House press secretary?
r/theydidthemath • u/Ill_Machine_8599 • 2h ago
[Request] calculate cumulative net cost of car lease vs finance scenario w/ investing
Hoping you brilliant minds can calculate this out over something like a ~20 year horizon to see what the difference in cumulative net cost is between these two options!
I’ve tried to run it myself and having a hard time accepting how much better Option 1 seems and it’s not something you hear people taking into consideration (factoring potential investment income off the difference/extra you’d be “saving” monthly on the lease option vs the higher payments on the finance option) during debates on lease vs finance…or maybe I’ve just always overlooked this.
I know a big variable is the assumption made in option 2 on only holding the vehicle for 1 year debt free before starting a new loan vs keeping the vehicle “debt free” for longer and investing all the money that would otherwise be going to a car payment, but, this is intentional as it assumed a 5 year warranty and avoids any significant amount of time out of warranty before getting a new vehicle.
Eager to hear your thoughts and if I’m missing anything critical.
Option 1: continuous leases + investing the difference between what financing payments would be vs lease payments
Option 2: recurring financing + 1 year of investing every sixth year
- 5 year term to pay off completely
- keep car for 1 year after 5 year financing term
- every month during the sixth, debt free year, invest equal monthly payments to what the financing payments were
- sell car after 6 years of having it and finance new one
Assumptions:
Monthly lease: $803
Monthly Finance: $1207
Resale value every 5 years: $18000
Annual investment return rate: 7%
Lease term: 60 months
Finance term: 60 months
Option 1 monthly investment amount: $404
Option 2 monthly investment amount during the year following end of 5 year financing: $1207
Maintenance: no significant out of warranty maintenance on either option
r/theydidthemath • u/__TheNoob__ • 1d ago
[Request] On average, how fast would you need to drive to make it to each city in said time frame?
Saw this and now am genuinely wondering how fast you'd need to drive.
r/theydidthemath • u/IamNotaSmart • 1d ago
[Request] How much would Lady Gaga’s meat dress cost at today’s grocery stores?
galleryr/theydidthemath • u/monakaliza • 1d ago
[Request] In 'Project Hail Mary', Grace gives Rocky a laptop that has "All of Human Knowledge". How much Storage (Terabytes) would that Laptop need, since we do not have internet access.
r/theydidthemath • u/Such-Ferret5175 • 2h ago
[request] how far away would a black hole have to be for a planet the size of our Jupiter to receive the same amount of "sunlight" as earth?
On the second part (idk if this is calculable so I'm leaving it in the body) how big would that be on the firmament compared to our sun?
I'm writing a book and this would be extremely helpful
r/theydidthemath • u/HadestheRea • 11h ago
[Request] Roughly how many G-forces would a human body experience during a sharp turn on a gliding Maewing
I was playing ark last night and tamed a Maewing, it was the first Maewing I've tamed and it seemed absurdly fast, crossing the ocean of Fjordur in a couple seconds, so I was curious as to how fast a Maewing actually is and how crazy the G-forces would be turning on one, I'm not knowledgeable enough to even estimate the first question. (Edit) According to this post, https://www.reddit.com/r/ARK/s/iQLwbEncOQ it's top speed is 248 miles per hour.
r/theydidthemath • u/Shockatweej • 1d ago
[Request] You're not winning the lottery, guy.
I was in a discussion with a co-worker about the lottery. He plays once a week and has for a number of years. I mentioned that I didn't. He said he always plays the same numbers every week, not because they're lucky, but because he believes that playing the same numbers every week somehow increases his odds of winning. I couldn't get any sort of rational explanation for this and I tried to explain to him that because every lottery drawing is from all the possible numbers available in the drawing, he has the same possibility of winning regardless of the numbers that he plays. Only if he bought more than one ticket with different sets of numbers, in any one drawing, did he actually increase his chance of winning. He refused to believe that I was right and he was wrong. Neither of us really has the math to justify our opinions. Can someone help prove me right?
r/theydidthemath • u/radiodurance • 9h ago
[Request] how much suction is psi was required to keep Tesla Roadster to stay inverted on track and what should be the capacity of pump to generate that much vacuum ?
r/theydidthemath • u/Massive-Albatross823 • 13h ago
[Request] How does one simply calculate the speed needed to successfully (at least in theory) to do a loop-the-loop on foot?
r/theydidthemath • u/dappershwarz • 15h ago
