Recent comments in /f/explainlikeimfive
extacy1375 t1_j2cnraq wrote
Reply to comment by carcigenicate in Eli5: Why when you yawn your hearing goes down? by Big_carrot_69
Wait!!-- So that thing I can do where I make my ears have a sound like a low thunder roll(I assume the rumble) is a common thing?!?
ChickenEnthusiast OP t1_j2cno8s wrote
Reply to comment by KoastPhire in ELI5: Tech billionaires lost $400 billion this year. Where does it go? Does anyone gain? by ChickenEnthusiast
Thanks. But speaking a bit more philosophically, do we non-millionaires and -billionaires gain anything when the super rich lose great deals of "on paper" money?
[deleted] t1_j2cnkrc wrote
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Gladianton t1_j2cnilq wrote
Reply to ELI5: Tech billionaires lost $400 billion this year. Where does it go? Does anyone gain? by ChickenEnthusiast
They didn’t actually lose it. The more accurate way to say it is “the current market value of their assets decreased” by $400 billion. It’s called an unrealized loss.
If they sold their assets at the deflated vale it would become a realized loss.
KoastPhire t1_j2cn9ok wrote
Reply to ELI5: Tech billionaires lost $400 billion this year. Where does it go? Does anyone gain? by ChickenEnthusiast
No one gained it, its just "on paper". It works as the same principle as a house. My house when I brought it was 280k, it peaked at 500k so technically on paper I gained 220k. Now it dropped to about 420k and I lost on paper 80k. No one gained the 80k I lost.
[deleted] t1_j2cn6y0 wrote
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ForwardMembership601 t1_j2cmt61 wrote
Reply to comment by RevaniteAnime in ELI5: How do services like YouTube simulatenously stream to thousands of users? by NativeSonSF
I feel like I understand streaming better than I ever have before. Thank you for writing this.
adept-grumblefish28 t1_j2cmitq wrote
Reply to comment by dkf295 in ELI5: Why can't cell phones come standard with a thermometer? by [deleted]
Not sure on the external probe bit. I have a garmin watch that does ambient air temperature without an external probe.
[deleted] t1_j2cmh5e wrote
Reply to ELI5: How do services like YouTube simulatenously stream to thousands of users? by NativeSonSF
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RevaniteAnime t1_j2cmdjz wrote
Reply to ELI5: How do services like YouTube simulatenously stream to thousands of users? by NativeSonSF
A video that is very "in demand" will distributed it to data centers and "peers" across the world. Peers meaning YouTube/Google makes agreements with ISPs to host popular videos on their servers which are as close as possible the end users, this applies to pretty much all big streaming services.
Streaming doesn't require the server to send the whole video at once, it only needs to send a steady stream of little chunks of the video to each individual viewer every so often.
jaa101 t1_j2cmclf wrote
Reply to Eli5 : is the order of the colors in a real rainbow always the same? and why , whichever it is? by Just_a_happy_artist
The brightest rainbow always has the same colour order, with red on the outside, but in ideal conditions a secondary rainbow can become visible outside the primary. The colour order of the secondary rainbow has the red on the inside, the opposite to that of the primary.
The reason for the difference is that the secondary rainbow involves the light being bent through more than 180°, i.e., it's bent back on itself.
Necessary-Fudge-3218 t1_j2cm86z wrote
It's like buying in bulk. The more you buy, the cheaper it is per unit. But you're still spending more money, aren't you? That iced tea probably cost 10 cents (maybe) to produce. At the end of the day, it's an incentive to buy more.
sterexx t1_j2cm1f2 wrote
Reply to comment by usrevenge in ELI5 How do companies make money by selling products at a low price and competing with other companies? by [deleted]
I can visualize the econ 101 graphs right now!
And this is almost too obvious to mention, but those computers aren’t exactly the same. They’re generally differentiated in at least some way, even if it’s just aesthetically.
But if we’re talking about precisely equivalent products, yeah economies of scale can get so interesting. My favorite is that Amazon can sell items at cost and still come out ahead.
Because they’re such a big (and reliable) customer to their vendors, they can get great terms on their invoices where they don’t have to pay for like a couple months after receiving their inventory.
So Amazon gets this $1000 TV in inventory but doesn’t have to pay yet. They sell it to me for $1000. They now have $1000 they can invest and earn interest on (or otherwise do whatever they want with) and don’t have to pay it back for a while
I don’t know exactly what scale they’re doing that at these days but it’s still amazing to me
Choice-Mountain-2389 t1_j2cm03o wrote
Reply to ELI5: Alzheimer's is dementia, but not all dementia is Alzheimer's. So what is the difference? by degobrah
Dementia is the symptom, Alzheimers is the disease. Alzheimers is the chronic degeneration of brain matter. As the brain slowly falls apart, symptoms of Dementia begin to occur.
Dementia is loss of memory and personality changes from Alzheimers and other sources.
sundays_sun t1_j2cln1i wrote
Reply to comment by usrevenge in ELI5 How do companies make money by selling products at a low price and competing with other companies? by [deleted]
They can also value engineer their product "upgrades" by improving a few important specs, while installing cheaper parts elsewhere - allowing them to lower the retail price. They lower the cost of production in order to make the same profit margin despite selling the product a lower price.
[deleted] t1_j2clfcm wrote
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Manyelynn13 t1_j2cl1ps wrote
Reply to comment by Jormungandrs-bite in ELI5: Why is it that, at some gas stations, it’s cheaper to pay with cash instead a credit card? by tgjj530
It's not illegal in the US to charge a credit card surcharge in all but five states.
ThatOneGuy308 t1_j2ckvhk wrote
Reply to comment by biggsteve81 in ELI5: Why is it that, at some gas stations, it’s cheaper to pay with cash instead a credit card? by tgjj530
Ah, I misread and thought you meant cash was unsafe for customers to carry around, lol
Rangermatthias t1_j2ckhyc wrote
Reply to comment by Buttleston in Eli5 : is the order of the colors in a real rainbow always the same? and why , whichever it is? by Just_a_happy_artist
To remember the colors, think of it as a person's name, ROY G. BIV: Red, Orange, Yellow, Green, Blue, Indigo, Violet.
BurnOutBrighter6 t1_j2ckcte wrote
Reply to Eli5 : is the order of the colors in a real rainbow always the same? and why , whichever it is? by Just_a_happy_artist
Yes the order is always the same.
A light's colour is determined by its wavelength. "White" light, like sunlight, is a combination of all the different colours.
Rainbows happen when the suspended drops of water in the air act like prisms and refract the light. When light goes through a prism, it gets bent by an amount that depends on its wavelength. The longer the wavelength the less it is bent, the shorter the wavelength the more it is bent. That means the light gets "fanned out" according to colour. Red has the longest wavelength and gets bent the least, orange gets bent a little more, etc etc.
One_Impression_5649 t1_j2cjy7e wrote
Reply to comment by sterlingphoenix in ELI5: How do we get such detailed pictures of planets and space? by thegoodnamesRtaken9
You can also read this fun article that explains it here: https://www.theverge.com/2022/10/10/23393194/nasa-image-processing-jwst-astrophotography
uawithsprachgefuhl t1_j2cjwm2 wrote
Reply to comment by AllergicToStabWounds in ELI5: How did we realise the mind is in the brain? by theembryo
This! I don’t think it took people long to notice what happens to a person’s mind after a serious head injury. Babies dropped on their head didn’t fair well, but the ones who had a broken bone grew up fine. I’m sure if a person lost all their ability to communicate, express emotions or have any sort of meaningful life after a serious leg injury, people would assume the mind must be in the leg.
[deleted] t1_j2cjn0d wrote
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captain_joe6 t1_j2cj5wr wrote
We are, but medical development takes a loooooooooong time.
Some of the treatments just now being approved and hitting market, in 2022, began human trials in the mid 2010’s, which means that base research probably started a few years before that.
KoastPhire t1_j2cnsei wrote
Reply to comment by ChickenEnthusiast in ELI5: Tech billionaires lost $400 billion this year. Where does it go? Does anyone gain? by ChickenEnthusiast
No, if anything we lose more. Usually this comes with a recession and job cuts which we are seeing now.