Recent comments in /f/explainlikeimfive
bfwolf1 t1_jefm4dc wrote
Reply to comment by [deleted] in ELI5: If the chemical dopamine stimulates a 'feel good' sensation, is there a chemical that makes us angry? by Kree_Horse
Some people’s anyway 😉
RockstarAgent t1_jefm4bl wrote
Reply to comment by [deleted] in ELI5: If the chemical dopamine stimulates a 'feel good' sensation, is there a chemical that makes us angry? by Kree_Horse
Does this explain people who love to have angry sex - or like to fight to then have angry makeup sex?
Steamer61 t1_jeflyd1 wrote
Reply to ELI5:Why do we exclude the price of things like Food, Housing and Energy costs when looking at the total number for inflation? by DeludedRaven
Because the government never wants to look bad.
Statistics are often manipulated to make things look better or worse than they actually are. The Federal government is especially good at this.
Sometimes it is also just complicated as hell to ascribe a number to something.
There is almost always more to the story than any 1 number that describes something like "Inflation".
avalon1805 t1_jeflsvl wrote
Reply to comment by atomfullerene in ELI5: How do we continue to grow seedless fruit if they don't contain seeds? by CuriousHuman111
Wait, pineapples have seeds?! Damn, you just messed my head real good
whomp1970 t1_jeflppv wrote
Reply to comment by Priceiswrongbitches in ELI5 The New Shape - The Hat by 13artzklauser
It's a lot more complicated than that, and I'm not really the best to explain that. I don't really understand the math myself, but I do understand the basic idea they're explaining.
But I think of of the keys is, you have to look at a much larger patch. Like, everything in that image, plus a few more equally sized blocks, together, don't repeat.
JustAnotherRedditAlt t1_jeflo38 wrote
Reply to comment by MurkDiesel in ELI5: If the chemical dopamine stimulates a 'feel good' sensation, is there a chemical that makes us angry? by Kree_Horse
Or become productivity coaches
[deleted] t1_jefll48 wrote
enjoyoutdoors t1_jeflixr wrote
Reply to ELI5: How does a DNR work? by HalloweenLover
Licensed medical practitioners are, somewhat simplified, taking an oath that they will always, always, always try to protect lives and help someone else avoid death.
In some beliefs, it's considered sinful to get medical help instead of accepting that your time has come.
This has created the need for some sort of middle ground gray area.
And that's what the DNR is for. If you tell your hospital that "if my heart stops, allow me to go peacefully", they will attempt to respect your wish to go when it's time to go, instead of attempting to keep you alive.
It's probably a hint mentally complicated for nurses and doctors, knowing that they COULD save someone, if that person actually wanted to be saved.
Ippus_21 t1_jefldmx wrote
Reply to comment by psychrolute in ELI5: If benzodiazepines are CNS depressants, why is it so hard to die from a overdose of them alone? by psychrolute
F'n hell, man. This makes me really glad I never got into that scene in my young-and-dumb years. Worst I ever did was get a little too drunk here and there.
Sounds like you had to roll successive Nat 20s to survive all that...
Youwillgotosleep_ t1_jeflcph wrote
Reply to comment by SkyARKy in ELI5: If benzodiazepines are CNS depressants, why is it so hard to die from a overdose of them alone? by psychrolute
As someone with a working knowledge of pharmacology and anesthesia, this right here.
Edited for terminology and corrections: The GABA receptor has a maximum effect that can be elicited from benzos. Once the receptors on it are bound by benzos there can be no further action, a ceiling effect. When other substances are added such as alcohol and narcotics they cause respiratory depression by means of other receptors, in the case of narcotics the opioid receptors, mu, kappa and delta. In the case of alcohol it ties up a different receptor on the same GABA neurotransmitter so it potentiates the effects caused by GABA activation. Other substances can also have the same effect as alcohol. This is essentially what happened to Anna Nicole Smith.
nighthawk_something t1_jefl9tp wrote
Reply to comment by stixxplays in eli5 what does an inverter invert? by [deleted]
Modern equipment is a bit more complicated and is more efficient but this is the gist of it.
spikecurtis t1_jefl68l wrote
Reply to comment by satans_toast in eli5 why is file/folder size is in bytes but speed counts are mostly in bits? by ArchariosMaster
Some modulation schemes send multiple bits at a time. For example in phase shift keying, the phase of an oscillating wave encodes the information. If you do this with 4 phases, 90 degrees apart, then you send 2 bits at a time, 8 phases 3 bits, etc.
Emyrssentry t1_jefkwkh wrote
Reply to ELI5:How electrecution happen at high voltage in near proximity without touching( HV lines). by ReferenceThin6645
High voltage lines have the ability to ionize the air around them, and turn the air into a wire. If that area of ionized air can reach something that grounds the wire, you'll get an arc. This is lightning.
And so if you get too close, the wire could ionize the air around them, and that ionized air touches you, and since you can ground the wire, it arcs to you, causing electricity to flow through you, potentially stopping your heart.
stixxplays t1_jefkrpk wrote
Reply to comment by nighthawk_something in eli5 what does an inverter invert? by [deleted]
I see
nighthawk_something t1_jefkp8a wrote
Reply to comment by stixxplays in eli5 what does an inverter invert? by [deleted]
First you use diodes to turn the negative part of the AC wave positive.
So now you have a bunch of bumps that are all from 0 to 110V (in the case of 110VAC).
Next you use capacitors to store energy from the bump so the voltage doesn't drop anymore.
Then you add resistance to bring the voltage down to what you want to use.
Jason_Peterson t1_jefkoji wrote
Reply to comment by stixxplays in eli5 what does an inverter invert? by [deleted]
It is called so because its operation is the opposite of a rectifier used to make DC, which already existed when the word was introduced. A rectifier flipped around or inverted.
Ape_Togetha_Strong t1_jefkk3e wrote
Reply to comment by [deleted] in eli5 what does an inverter invert? by [deleted]
This feels like a completely post-hoc explanation. If you have a real source, I would love to read it.
Seems much more likely its called an inverter because it performs the inverse operation of an already established device, the rectifier.
r2k-in-the-vortex t1_jefkifq wrote
Reply to ELI5: Doesn’t the drop in a stock price after the ex-dividend day cancel out the dividend gain for an investor? by 4westofthemoon4
Well of course, if this weren't so then you would only ever buy stock immediately before ex-dividend date and sell immediately after. Alas, payout just moves value around, it doesn't create anything extra.
Priceiswrongbitches t1_jefk1zk wrote
Reply to comment by whomp1970 in ELI5 The New Shape - The Hat by 13artzklauser
I guess I'm not really getting it. I starred a couple of the dark blue hats here. It looks to me like these are the exact same orientation and every other shape around them is the same too. So this pattern has already repeated itself just within a roughly 10x5 block of hats. Am I missing something?
android_windows t1_jefjx2o wrote
Reply to comment by hphdup92 in ELI5: Why sugar in fruits is good for you but processed sugar in chocolate and desserts is not? by Sensitive_Apple_7901
Depends on the variety. The bag of Sweetango apples in my fridge say they have 16g sugar per 154g apple. This is a newer variety that is sweeter than some of the older varieties.
tezoatlipoca t1_jefjvfd wrote
Reply to eli5 what does an inverter invert? by [deleted]
In an AC or alternating current power line, the current flows first one way, then the other. The current, and/or the voltage if you want to think of it that way, literally changes direction (or from +V to -V) following some type of periodic or cycling wave: a square wave, or a sine wave.
The problem is, a lot of power sources that aren't large turbine or rotationally driven generators tend to produce DC or direct current - which does not alternate. Solar panels, batteries etc.
So what a power inverter does is convert a flat Direct Current into a sinusoidal - or at least periodic, repeating - wave. One does this with mechanically flipping switches or relays or with transistors (or derived digital logic circuits), which are really just silicon based switches. For half of the cycle it sends current one way, for the other half it sends current the other way. By designing the output of that circuit carefully with the right components you can essentially get a square wave. By adding removing some additional harmonics with additional switches and components ((diodes, resistors, capacitors)) you can change the shape of that square wave into a sine wave.
Ippus_21 t1_jefjsli wrote
Grass is primarily cellulose. It's difficult for most animals to break down into usable nutrients, but ruminants, like cows, have multiple stomachs that act as fermentors/bioreactors, where specialized bacteria break down cellulose in a way that provides nutrition for the cow.
Grain is primarily carbohydrate and protein, which is why it's sought after by animals that lack ruminant guts.
When cows are fed on primarily grass, it means a) they're usually out wandering around a pasture and b) they're eating their typical diet. This tends to produce lean meat and mean that the cows weren't primarily crammed in a feedlot.
When cows are fed on primarily grain, the energy-density of their diet is much higher, and it takes much less effort for them to break down, so they tend to put on more fat. "Grain-fed" typically means they were raised on a mixed diet and "finished" on grain (fed a primarily grain-based, energy-dense diet toward the end of their lives), which results in fattier, marbled cuts of meat that may be more flavorful/tender.
[deleted] t1_jefjrq9 wrote
I_AM_A_CLICHE_IKNOW t1_jefjf4d wrote
They don't. They can only guess. As far as I know, no dinosaur fossil has ever been found with a hyoid bone, which is part of how we're able to make noise and speak. That doesn't mean they couldn't make sounds. It's quite likely they could, at least some of them. Think less high pitched chirping ala birds today, and more hissing, rumbling, and trumpeting.
[deleted] t1_jefm7um wrote
Reply to ELI5: How does a DNR work? by HalloweenLover
[deleted]