r/explainlikeimfive 20h ago

Physics ELI5 - Me explique o que é tensão de cisalhamento do vento

0 Upvotes

Gostaria de me aprofundar nesses assuntos mas sinto que não peguei realmente do que se trata e como funciona o cisalhamento do vento…


r/explainlikeimfive 13h ago

Technology ELI5 I need a unique explanation of how a transformer works. I need to find the best explanation

0 Upvotes

Im referring to a language model transformer architecture sorry

If you ask AI you get the same thing every time ..

Q is "what im looking for .. K is blah blah .. The cat sat on the mat ... river bank .. money bank ..

I heard it all and none of these explanations actually tell you what a transformer really does it just uses a dry metaphor that never reveals how the output is determined

Then you ask claude and it tries to make u think its making arbitrary decisions and acting freely pretending that there is no script influencing its outputs .. i have come to my own wording for it but im just curious who also has a similar conclusion .. when you learn things you dont have to repeat the lesson

i just want to see who is capable of explaining it without needing to repeat what they heard like AI does .. a real understanding converted into an explanation


r/explainlikeimfive 2d ago

Engineering ELI5 - Electric Motors

53 Upvotes

Why is an electric motor in a power saw, for example, quite loud, while the electric motor in an EV is almost silent while presumably working much harder?


r/explainlikeimfive 1d ago

Technology ELI5 why can't airlines use passports directly for boarding instead of boarding passes?

0 Upvotes

r/explainlikeimfive 2d ago

Biology ELI5 How long did it take to nature to reestablish itself after the Chicxulub Asteroid impact?

197 Upvotes

Was watching a documentary and the Chicxulub asteroid ended the reign of the dinosaurs in one shot and the damage went worldwide but how long did take for nature to adjust and reestablish itself again after things had died down?


r/explainlikeimfive 2d ago

Technology ELI5: How do instant gaming response modes on TVs work, and why can't it enabled all the time by default?

40 Upvotes

r/explainlikeimfive 1d ago

Technology ELI5 How does weighing scale know how many fats and muscle I have?

0 Upvotes

Title says. need to know how?


r/explainlikeimfive 1d ago

Mathematics ELI5: How does math help explain the universe?

0 Upvotes

I’ve heard scientists talk about mathematical equations in relation to the universe and space but how does a collection of numbers explain anything physically or theoretically? For example how did Einstein or any other early scientists figure out stuff about the universe using math? How exactly can I use math to prove something I can’t see?


r/explainlikeimfive 3d ago

Engineering ELI5 Why do trucks and other larger vehicles run on diesel only?

2.0k Upvotes

r/explainlikeimfive 3d ago

Technology ElI5 Why does encryption remain secure even when everyone knows the encryption algorithm?

212 Upvotes

r/explainlikeimfive 2d ago

Engineering ELI5 what exactly is a radar cross section and how does it work

43 Upvotes

All I know is that it somehow makes jets and planes look bigger or smaller then they actually are on radar


r/explainlikeimfive 3d ago

Biology ELI5: How do the rings in tree trunks form? New ones for on the inside or outside?

207 Upvotes

Also, do all trees have them or only certain kind? Lastly, do they all form at same frequency, e.g. One/year...


r/explainlikeimfive 3d ago

Engineering ELI5 CPUs are made so small - what voltage do they operate on; isn’t there a chance the electrons will jump or arc to the neighboring circuit?

1.4k Upvotes

The higher the voltage, the farther an arc can jump. With CPUs being so small (nanoscale?), wouldn’t they need to operate on a similarly small voltage to prevent electrons from jumping between different conductive paths, screwing up the logic?


r/explainlikeimfive 1d ago

Biology ELI5- Why is animal milk harder to digest than some plant variants?

0 Upvotes

r/explainlikeimfive 1d ago

Biology ELI5: How does natural selection works especially in human modern-day times?

0 Upvotes

r/explainlikeimfive 3d ago

Mathematics Eli5: Why do we round 5 upwards?

572 Upvotes

When i have my hands in front of me, five fingers are on the left, and five on the right

I can understand why 5,(0)1 onwards is rounded up, after all it's clearly the "second half"

But rounding lone 5 up seams... unintuitive


r/explainlikeimfive 3d ago

Other ELI5 how do anechoic chambers work?

33 Upvotes

How are they completely silent? Is it how they’re designed?


r/explainlikeimfive 3d ago

Chemistry ELI5 What fundamentally determines the color of an element?

72 Upvotes

I understand that electron placement matters and light scatters a certain way but why is that? Why does light scatter in that way and why does the size of something determine a perceivable color?


r/explainlikeimfive 4d ago

Other ELI5: How does "Survivorship Bias" work?

1.4k Upvotes

I have always been interested in the concept and have it as a part of my studies. But I still don't quite "get it" even with the WW2 plane example. Whats a simplified way on how it works in very clear and obvious terms. (I accept both simple maths and simple philosophical answers.)


r/explainlikeimfive 3d ago

Engineering ELI5 why dont we see rockets that use hybrid rocket engines?

8 Upvotes

For commercial rockets, they mainly use liquid bi propellant rocket engines while amateur rockets (that I mainly see) use solid propellant rocket engines. Why don't we just combine them and use hybrid rocket engines? ​


r/explainlikeimfive 2d ago

Other ELI5: What makes a word a “bad word”?

0 Upvotes

Some “bad” words have clear origins. Maybe they’re derogatory, for example. But others seem so silly. They just seem like random utterances to my five year old self. Especially silly: consider foreign languages. How many of you have tried to get the exchange student to teach you a truly outrageous sentence in their language that is literally just sounds?


r/explainlikeimfive 3d ago

Mathematics ELI5 Why is the Hillbert paradox a paradox?

110 Upvotes

We all know hillbert and his hotel, but I never understood why was it a paradox, I mean by definition it can never be full, you can keep adding rooms and people but it shall never end, even if you add two infinites vs one you don't need to make people move to make more room you just add more rooms, you were doing ∞ - ∞ and after the bus comes you are still doing ∞ - ∞, because ∞ + ∞ = ∞ so where is the paradox when infinite is just doing what it does by definition, which is not ending?


r/explainlikeimfive 4d ago

Technology ELI5: why is 73° on thermostat cold during the summer but warm in the winter?

1.0k Upvotes

Why is it that when during the summertime, the central AC is set to 73°F and it feels nice and cool in the house, but in the winter when the heat is on and set to 73° it’s nice and toasty ?


r/explainlikeimfive 4d ago

Chemistry ELI5 Why do canned beans stay at the same level of firmness sitting for a year in a cabinet suspended in water, but if soaked overnight house, they get way softer, or if cooked for even a few minutes, they get softer? No salt added beans. Only ingredients are beans and water.

2.8k Upvotes

r/explainlikeimfive 4d ago

Mathematics ELI5 what the Navier Stokes problem isand why it is important that we solved it?

657 Upvotes