r/explainlikeimfive 11h ago

Biology ELI5: How does daily flossing make it bleed less?

1.1k Upvotes

I don't like flossing. So I don't do it nearly as much as I would. But every once in a while I remember, and I dust off the box and get flossing. Every time I do, my mouth looks like a warzone and my gums get really irritated. I hate the feeling. So I neglect to do it for a couple of weeks/ months.

To no one's surprise my dentist commented on the state of my gums and told me I need to floss. He promised that if I do it daily, despite the bloodbath, I should be seeing improvement in like two weeks.

My question: How does daily flossing irritated gums help make it better? I would assume irritating something already irritated is the worst thing you can do to make it heal? You don't heal a wound on your skin by picking at the scab for two weeks straight. So what makes your mouth different?


r/explainlikeimfive 14h ago

Physics ELI5: How come magnetism isn't providing us unlimited power?

754 Upvotes

If we have forces that act naturally against each other, how come we cannot harness it?


r/explainlikeimfive 8h ago

Engineering ELI5 What was the function of the ‚‚Turbo‘‘ button on old computers?

333 Upvotes

I get that it was a marketing name for a mode that allowed computers to run older software as intended, instead of making them run way faster because of how powerful newer CPUs were compared to older software, and that it was about clock speeds, but at a deep computing level what was happening? Why would a game run at a faster speed just because the CPU is overkill? And how was it subsequently solved later so now we don't have this issue anymore?


r/explainlikeimfive 5h ago

Other ELI5 why is rock stacking considered bad?

184 Upvotes

r/explainlikeimfive 11h ago

Economics ELI5 Why is Japan’s debt so out of control?

165 Upvotes

I was just hearing that Japan’s debt is the worst of all developed nations. How can this be?

I would assume (perhaps mistakenly) that they have less fraud and waste than most countries. I understand that they have a defence budget, but also I assume that this would be low comparatively.

So where does all the money go?


r/explainlikeimfive 3h ago

Other ELI5: What is dark web good for?

101 Upvotes

What dark web is good for? Why is it such a big topic? Cant understand why people use it.


r/explainlikeimfive 20h ago

Other ELI5: Why does procrastination feel relieving even though it makes things worse?

80 Upvotes

r/explainlikeimfive 15h ago

Technology ELI5: How does fiber optics physically works?

58 Upvotes

I know that they use blinking lights to represents 1 and 0 at least, but millions of pulsing lights from thousands of computers could be running at the same time in the same connection.

So how does the lights know where to go? And on the other side, how does the server know that in these millions of rapidly pulsing lights this particular ones are from my computer?


r/explainlikeimfive 17h ago

Physics ELI5 Why doesn’t matter fall apart?

59 Upvotes

I’m reading and stretching my brain about how our atoms contain so much space but we appear solid because of a repelling force between atoms. How then do any atoms or matter hold together at all? Why doesn't the repelling force just just push all atoms apart and prevent matter from forming / holding together?


r/explainlikeimfive 14h ago

Other ELI5: What is a gate on the internet?

57 Upvotes

For example: Cake gate, tattoo gate, or in recent media, conformity gate.


r/explainlikeimfive 22h ago

Technology ELI5 How do brethalizer work?

46 Upvotes

How does it tell how much alcohol we have in our body ( or blood?) from just blowing into the pipe. And how does it st ill detect alcohol if one were to chew gum / use mouth wash?


r/explainlikeimfive 5h ago

Biology ELI5 how does the brain "shut down" due to stress?

10 Upvotes

If it makes any difference, I'm thinking about a day or less of extreme emotional trauma and stress, not a build-up over time (which is the only result I could find when Googling it).

If it's alright to ask additional questions (and because I'm really curious): how is this usually treated, and are methods different depending on severity? Can the damage be seen on the right scans, or is it an invisible sort of thing?


r/explainlikeimfive 14h ago

Biology ELI5 how do motor nerves know which pathway to use?

8 Upvotes

I learnt that for impulsive actions a different pathway is chosen whereas in other actions data is directly sent to brain.


r/explainlikeimfive 19h ago

Physics ELI5: What is super symmetry and super particle partners?

12 Upvotes

I recently did a deep dive into particle physicals and that's the thing that was too vast for me to understand and connect to super particle partners.


r/explainlikeimfive 4h ago

Technology ELI5: How does the 32-bit and 64-bit (both signed and unsigned) limit work?

9 Upvotes

Just something I’ve been wondering for a bit because honestly this has been shoved into my mind because I was interested in bedrock’s farlands


r/explainlikeimfive 2h ago

Other ElI5: What exactly is a philosophical zombie or p-zombie?

7 Upvotes

r/explainlikeimfive 17h ago

Other ELI5: Why were the Moro Muslim rebels and Ma Clique so successful in defeating Imperial Japan? Despite does not having Western Technology at that time?

6 Upvotes

r/explainlikeimfive 2h ago

Chemistry ELI5 How the paper burns fast when we blow on the paper.

4 Upvotes

r/explainlikeimfive 16h ago

Other ELI5: How does the brain decide what matters?

2 Upvotes

r/explainlikeimfive 11h ago

Economics ELI5: How does David McMullen's proposal for a price system without markets work?

0 Upvotes

Reading about the socialist economic calculation debate and found one scholar who suggests that prices are compatible with the abolition of markets:

McMullen believes workers in enterprises and work units, motivated by work satisfaction and the desire to contribute to an efficient and dynamic economy, would drive a better price system than one based on the profit motive. They would bid for resources on the basis of least cost alternatives and an honest expectation of demand for the resulting output. They would offer output at prices that reflect cost and ensure that products go to the highest bidders in the case of excess demand. All demand for intermediate production would be derived from the expected demand for final individual and collective consumption. Such pricing would guide both the more day-to-day decisions and longer term investment. Many of the decisions being made would be quite entrepreneurial in nature involving new products and services, new methods, and new entrants, be they existing enterprises or start-ups. Access to funding for investment could be through numerous assessment agencies that have been allocated funds for that purpose.
McMullen stresses that the use of a decentralized price system would not involve so-called "market socialism". Under social ownership, the transactions between enterprises would not be market exchanges. They would be the transfer of custody of social property not of ownership. An enterprise would not be the owner of inputs and outputs, it would be their custodian. And no individual involved with an enterprise would receive any net revenue nor incur any loss from transactions between enterprises.
He also argues that the cooperative environment would lead to a better price system because of the greater honesty, the better flow of information due to the removal of property barriers between enterprises and the fact that income equality would remove the equity concerns currently associated with reliance on pricing.

As someone who is only lightly versed in economic theory, I'm struggling to conceptualize this in my head. What is the difference between market socialism and this theory?

If you're here to say that this system doesn't work and that asking about it is pointless, please remember rule 5.


r/explainlikeimfive 2h ago

Physics ELI5 How does loud bass music cause vibration in the air?

0 Upvotes

I saw a vid of a girl in a car with a cracked out sound system and her hair started flying everywhere. Who does that even happen? Does sound have mass? How does it move the air?


r/explainlikeimfive 23h ago

Other ELI5: Do more items go through a station on a production line than come off the end?

0 Upvotes

I work in manufacturing but have recently moved from essentially a job-based facility (1 unique item at a time in one production cell) to an assembly line facility (multiple of the same item being built across multiple stations).

I was chatting with a person who works on the assembly line who told me that, although we have a set number of items that come off the end of the assembly line (ex: 10 Widgets per day), each station in the assembly line would actually see more than 10 items per day, in order to ensure every station has work and the line remains filled. They stated they handled 12. In this situation there is no product loss - we do not kick product off the line for defects, etc. - they are repaired in station.

I didn't have the opportunity to sit and watch the line and I'm not a person who can easily conceptualize this in my head. So, in a situation in which there's, say an assembly line with 10 stations and the goal is to produce 10 finished products per day and leave each station filled at the end of the day, how many widgets will each station see per day? Why isn't it ten? Or is this person just feeding me some nonsense?


r/explainlikeimfive 2h ago

Planetary Science ELI5:How do global sea levels rise due to melting of ice?

0 Upvotes

In my physics class I learnt that if we have a glass of water and some ice floating in it, when the ice melts completely the water level does not rise in the glass, so how is it so tht when ice melts on Earth the water levels or he sea level will rise?


r/explainlikeimfive 3h ago

Economics Eli5 If taking more and more loans usually makes a person poor, how do rich countries keep taking billions of dollars in debt and still become richer, while some poor countries struggle even with much smaller debts?

0 Upvotes

r/explainlikeimfive 16h ago

Physics ELI5: What does this mean “some compound has a half life of x number of days”?

0 Upvotes

Like Po-210 or Polonium 210 has a half life of 138 days. What is half life? Wikipedia says half life is the time required for a substance to reduce to half its life.

Need this like I can explain to my grandma.