r/explainlikeimfive

ELI5: how do surgeons transform female genitals into male genitals and vice versa?

With this post I DON'T want to offend or insult anyone, in any way.

How do surgeon actually do that? If we're talking about the breasts, I think (I might be wrong though) that they insert in you some implants, and for the other genre, they do the opposite. But when it comes to the proper genitels, what do they do?

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u/anonimo110110 — 7 hours ago
▲ 222 r/explainlikeimfive+1 crossposts

ELI5 Why the Riemann hypothesis is one of the 7 Millennium Prize Problems

Like title.

Ofc, I don't understand the math, but I am curious why some number patterns are regarded so highly"

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u/47edits — 6 hours ago

ELI5: Why does our body sometimes hide pain until you’re somewhere safe?

How can someone get injured but barely feel it while they’re in danger, only for the pain to suddenly become intense once they reach safety?

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u/virahok993 — 6 hours ago

ELI5: Are You Using Your Ears When You Hear Something In Your Head?

I’ve asked my family and close friends this but they’re the “are you high? Lmao” kinda people just because i wanna have interesting conversations and questions so im hoping for a detailed scientific answer. But like when you play a song or movie or anything in your head that wasn’t from an outside source, are you using your ears to process that sound? I feel like the answer is obviously yes i just don’t understand HOW your ears process it and want answers. Any answers would help! Also sorry if this doesn’t necessarily fit in the type of questions posted here.

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u/bagobeans17 — 9 hours ago

ELI5: How does ants determine how many ants are needed for a lifting job?

When faced with a large food item they need to transport back to the colony, how do ants determine how many of their fellow comrade are needed to lift it? Do the first scout ants guesstimate the amount and call for backups, or do they just keep adding more ants until they're able to lift it?

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u/SinisterKidz — 8 hours ago

ELI5 - Do we slow down the rotation of the Earth?

Do we slow down the rotation of the Earth?

I read that the Three Gorges Dam in China slows down the rotation of the earth by 0.06 µs, because of it being massive. But this is where my question comes in. Massive in what way? Does the weight of the structure make the earth slow down? If so, has the amount of buildings we have built over time not slowed down the earths rotation massively, and thus made our days longer? And did the boom in population we have witnessed, especially in the 20th century not have an influence? If the word "massive" refers to size, then wouldn't the same be true? I have surely missed something in my way of thinking, but what have i missed? Explain it like im 5 years old please.

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u/LegalGeneral7817 — 9 hours ago

ELI5 How large was the "danger zone" in WW1?

Im reading Junger Storm of Steel. In the Guillemont chapter, his group marches to some front line trench. But well before they get there, already there is massive destruction and abandoned dead. Its what I thought no man's land was supposed to be but its on their side still! They stop at the village Combles, but this too is practically a complete ruin and wholly unsafe. When they finally reach the front line trench it seems hardly much worse than anything behind it. How large an area was victim to artillery fire? Ive been accustomed to think it could only be so bad a bit near the front.

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u/Worried_Party_7588 — 18 hours ago

ELI5: What is “good fat”?

I see this term used all the time when talking about healthy foods to eat, but I have no idea how it’s different from “bad fat”.

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u/Cuddly_Rudder — 20 hours ago

ELI5: If skyscrapers are designed to sway in the wind, how do things like elevator rails, pipes and windows not get damaged?

I understand the building itself can flex a little instead of being completely rigid, but everything inside it seems way less flexible. Elevator rails have to stay aligned, pipes connect through dozens of floors and huge glass panels can't exactly bend much.

I was watching videos about skyscraper engineering and this part confused me. When the top of a building moves in strong wind, are all those systems actually moving with it somehow, or do engineers build special gaps and connections that let different parts move separately?

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u/FunNo9452 — 23 hours ago

Eli5 Can a simple loop of water circulate by itself forever if one end of a small tube is at the bottom of a big container and the other end goes back to the top?

Imagine a big bucket of water with a tiny tube connecting the bottom back to the top. Would the water keep moving, or would the circulation eventually stop?

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u/arztnur — 14 hours ago

ELI5: Why do houses with solar panels also experience complete power outages?

Recently, my neighborhood had a power outage lasting several hours. About 1/3 of the neighbors have solar panels. I realize some are just for the hot water heater or pool, but some have extensive systems and sell power to the utility company (in my understanding. None of the homes with solar had any power during the outage. Are there some solar systems that would retain power in an outage?

UPDATE: You all are so awesome. I’ve been wondering for the last few weeks. We don’t have solar, and it’s something I’ve been considering adding and you all have given me great insights to consider. Thank you!

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u/Leecypoo — 1 day ago

ELI5 What does " niche " even mean ?

Ok guys I've been hearing the word " niche " a lot recently. I've never heard that word before a year. I simply don't understand what niche means at all .

Here are few sentences for context

  1. 10/10 habits to improve your productivity but they get progressingly niche

  2. Are there any niche places in my city ?

English is not my mother tongue so that's why I never heard of it before

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u/Emmet6912 — 18 hours ago

ELI5: HoldCo vs Private Equity

A Private Equity Firm buys companies, and sells them over a span of time.

A Holding Company buys companies, and holds them for an indefinite amount of time, AND can also sell them over a span fo time if the opportunity arises.

So a HoldCo has the option to hold companies permanently and/or sell them. But a PE firm is limited to just selling the company.

So is there really any advantage to opening a PE firm, when you could open a HoldCo and have more freedom and options?

Whats the advantage or difference in opening a PE firm, when eveything in a PE firm can be done in a Hold Co?

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u/joelpaul_09 — 13 hours ago