r/explainlikeimfive • • 21h ago

Mathematics ELI5 when non trivial zeros of a function are

6 Upvotes

like, I know what a zero is, and also what a function is sometimes even how to calculate them, bo idea of the difference between a trivial zero and a non trivial one


r/explainlikeimfive • • 23h ago

Biology ELI5 What is ADHD physically in the brain and how much merit does the “hunter vs farmer” theory hold in modern research?

0 Upvotes

r/explainlikeimfive • • 28m ago

Biology ELI5: What goes on inside the mind of someone who has never learned a language? Do they have an inner voice, hear anything in their head, or think in some completely different way?

• Upvotes

r/explainlikeimfive • • 3h ago

Technology Eli5 how do hardware issues affect software

5 Upvotes

I understand how hardware determines limits on what software can run, but how can it also affect software security?


r/explainlikeimfive • • 14h ago

Engineering ELI5: Why do some places, like airports, spend money on architecturally aesthetic designs, rather than spend it on more amenities, supplies, gates, etc?

0 Upvotes

r/explainlikeimfive • • 19h ago

Engineering ELI5: If we can broadcast information wirelessly through an entire house, like WIFI, Bluetooth, why can't we broadcast enough energy to charge every phone in it, without cables, charging pads, or even putting the phone in a particular spot?

782 Upvotes

r/explainlikeimfive • • 56m ago

Economics ELI5: Why do stock prices sometimes drop when a company announces record profits?

• Upvotes

r/explainlikeimfive • • 25m ago

Biology ELI5: If muscle is so essential to human health and longevity, why is it so difficult to gain and maintain?

• Upvotes

r/explainlikeimfive • • 17h ago

Biology ELI5 What determines neuron polarity and the factors controlling neuronal circuit layouts

2 Upvotes

What is the benefit of having the cell body in different locations? What factors do neurons used to communicate with each other so that they can for complex circuits, and what determines if a neuron is stimulatory or inhibitory?


r/explainlikeimfive • • 12h ago

Other ELI5 What is "high-density life"?

0 Upvotes

I randomly came across this term "high-density life" in a self-help kind of article or speech. It says strong people live their lives with more "density". And these strong and successful people manage to experience more, create more, complete more and stuff. I feel anxious when I read it because I can't help feeling that I'm wasting my life.

What do you know about "life density”? Do you think the whole concept exists? What do you do to make your life "denser" if you agree on this concept?


r/explainlikeimfive • • 15h ago

Technology ELI5: Why can X-rays easily pass right through our skin and muscles but get completely stopped by our bones?

125 Upvotes

r/explainlikeimfive • • 13h ago

Engineering ELI5: aside from aerodynamics, what determines how fast a car goes? why can some cars have the similar engines in power but differ completely in their performance?

79 Upvotes

r/explainlikeimfive • • 21h ago

Other ELI5, why did NFL footage from the 1920s and 30s look so sped up or slowed down?

213 Upvotes

r/explainlikeimfive • • 23h ago

Biology ELI5: If millions of cattle are consumed yearly why arent there more human cases of prion disease?

521 Upvotes

For example the Variant Creutzfeldt Jakob Disease


r/explainlikeimfive • • 3h ago

Biology ELI5: Why do humans have birthmarks?

20 Upvotes

r/explainlikeimfive • • 1h ago

Physics ELI5: Exponential Time Hypothesis (ETH)

• Upvotes

Hopefully this is properly flaired. People have been talking about ETH and AI lately and I don't understand what ETH really is.

Bonus for ELI5: How did AI supposedly disprove ETH—But I'm mostly interested in knowing what ETH is on its own.


r/explainlikeimfive • • 13h ago

Other ELI5: Why keep Staten Island part of New York City?

0 Upvotes

Given the rather distinctive makeup of Staten Island vs. the rest of New York City, there must be some good reasons why secession hasn’t been allowed to happen and why SI hasn’t been preemptively kicked out of NYC.

I’m interested in understanding what those reasons could be at a basic level.


r/explainlikeimfive • • 20h ago

Physics ELI5 Space and Gravity's affect on light

0 Upvotes

Connecting two other ELI5s. This is something that I've always struggled with.

Space is nothing. There is no actual "fabric" of space. There are things in space, and the "space" in between is.. nothing.

Nothing, as I understand it, is without mass, energy, information, anything. There is no thing to bend.

But! Gravity doesn't bend light because light doesn't have mass. It bends space and we see light bend along it.

How can nothingness be bent?

And why doesn't light just pass through empty nothingness on the same trajectory, if it isn't being acted on by gravity? OR is it that it does do this and it's only our 3D perception that it has changed trajectory?

When we talk about gravity bending space, are we actually talking about the distribution of Stuff within a given area, as it relates to another body, due to the effect of gravity? e.g. the distribution of Stuff around a random planet

I know this is very long and contains multiple questions. My hope is that by including all of this, it will make clear where my misunderstanding is. The real question is, how can nothing be bent?


r/explainlikeimfive • • 21h ago

Biology ELI5: Exploding head syndrome

0 Upvotes

r/explainlikeimfive • • 4h ago

Technology ELI5: If a fiber optic cable or something of the sort gets damaged underground, how do people know where along the line its broken and how do they fix it?

310 Upvotes

r/explainlikeimfive • • 9h ago

Biology ELI5: Are digestive enzymes produced all the time or only when we eat? What happens to them if we skip a meal like breakfast?

50 Upvotes

r/explainlikeimfive • • 1h ago

Engineering ELI5: Sorry if this is a dumb question but.. why doesn't the straw in thermal cups/tumblers screw onto the base?

• Upvotes

I have an Owala cup. I've never been a cup girl but I seen the color, bought it and never drunk out of anything else since.

However- the damn plastic straw thing inside is always falling off inside the cup.

Imagine a mouth full of the most vile, disgusting liquor (corn liquor) and the instant relief you feel when you realize you have a refreshing chaser next to you, you open the lid, and nothing comes out bc the straw isnt attached. Now I had to swallow satan piss, raw dog.

Anyway- maybe this is just an Owala thing but all the cups i've ever seen and owned but never used all have the same mechanics of just pulling it for it to come apart.


r/explainlikeimfive • • 3h ago

Biology ELI5: How do some insects reproduce incestually for multiple generations without complete genetic degradation?

236 Upvotes

As an example, a cockroach might lay an egg somewhere that hatches hundreds of cockroaches which are all siblings, but then dozens of those siblings will mate with each other, and then their children will mate with each other, and some with their aunts/uncles potentially, and this will just go on and on with seemingly no issues. How is this possible?


r/explainlikeimfive • • 57m ago

Biology ELI5 does water diffuse through a cell membrane only by passing through aquaporins?

• Upvotes

Studying osmosis stuff for an exam, I thought water was able to slip through gaps in cell membranes, but a quiz question my professor posted said to cross the cell membrane water must pass through aquaporins.


r/explainlikeimfive • • 22h ago

Biology ELI5 Why do some musical chords sound sad and some sound happy? Is it learned or do our brains come this way from the factory?

1.1k Upvotes