Recent comments in /f/explainlikeimfive
LoneStar2911 t1_j6bzgee wrote
Reply to comment by blakevh in ELI5: why do our bodies randomly act like we haven’t had water in days and that we need to chug a bunch randomly? by Serratedlily
Disputed perhaps, but not disproven. At least, not to my knowledge. I would say the majority of doctors, biologists, etc still agree on “you should drink x amount” (typically depending on your body weight). But yes, I’ve heard of it being disputed. And as the other commenter said, I was also told that once you’re thirsty, you’re already showing signs of dehydration. Until it’s widely accepted that there’s no need to drink unless thirsty, I’ll stick to what I’ve been taught this far. Besides, I don’t like being thirsty. lol
explainlikeimfive-ModTeam t1_j6bzgby wrote
Reply to ELI5: When you have no cellphone service, how can you still make calls to emergency services (eg. 911)? by 2Girls1Pet
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[deleted] t1_j6bz4kv wrote
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sirtimes t1_j6bxu2f wrote
Reply to comment by squigs in ELI5: Why do imaginary numbers even need to exist? by Tharsis101
This is probably the best explanation - it definitely helps to be visualizing the number line for this. I really enjoy the 3blue1brown YouTube series on this concept
ZacQuicksilver t1_j6bxspm wrote
Reply to ELI5: how did we standardize on watts/amps/volts when everything else is segmented across the world (km/miles, nm/ft-lb etc)? by t0r3n0
They are more recent.
There were hundreds of units of distance a long time ago, when there wasn't a lot of communication or cooperation between nations - or sometimes even between cities in a nation (see: China, Rome). As humans spent more time interacting and cooperating, we standardized our measurements; but the US stubbornly refuses to change from the system it uses.
However, electricity was discovered and measured recently enough that competing units of measurement never got established enough for there to be significant argument over which units to use.
DM_me_ur_hairy_bush t1_j6bxeve wrote
Reply to ELI5: Home Field Advantage by frycookchampion
It’s all in the mind. You get extra support from your home fans that make for a more conducive environment for winning
kdieick t1_j6bx1lc wrote
Reply to comment by [deleted] in ELI5: When you have no cellphone service, how can you still make calls to emergency services (eg. 911)? by 2Girls1Pet
No, OP confused their question. Both lack of signal and lack of a subscription are a lack of "service" at a particular time when trying to complete a call.
Yivanna t1_j6bwxgv wrote
Reply to comment by Leucippus1 in ELI5: Why do imaginary numbers even need to exist? by Tharsis101
His original post wasn't talking about square roots. I replied to his og version.
Sloloem t1_j6bwua0 wrote
Reply to ELI5: When you have no cellphone service, how can you still make calls to emergency services (eg. 911)? by 2Girls1Pet
The Wireless Communications and Public Safety Act of 1999 requires any cell phone be able to call 911 on any network it can find the signal of, even if it has no service available on that network so that you can use deactivated phones or make 911 calls to local emergency services in areas that might not have official 911 service.
There is a difference between a lack of signal and a lack of service. Without signal your phone can't find a network so nothing could work. Without service your phone might be able to communicate with a network but might not be activated, or it might be another carrier's network where you don't have a roaming contract, etc. If the network is there, you can call 911 even if the phone is locked or doesn't have a contract. But if there's no network you're up a creek without a paddle.
SassySybil71 t1_j6bwthj wrote
Reply to comment by no_usernames_avail in eli5: Why does cheap alcohol taste worse than nicer alcohol? by Chase_The_Dream
California has great liquor stores - superstore or corner market. The ABC store in Charlotte was nothing like BevMo!. I took two good bottles in my checked luggage thankfully and the recipient of the bottle I gifted was very appreciative. (I spent four weeks working in Charlotte.)
[deleted] t1_j6bwciq wrote
Ellykos t1_j6bvvnz wrote
Reply to comment by Ogg8474 in ELI5: Why do imaginary numbers even need to exist? by Tharsis101
If you didn't know, Z, Q and R are also used. Z are for the integers (-inf to +inf) while N are the natural numbers (0 to +inf). Q is for the rationnal numbers, all the numbers that can be written as a quotient a/b where b isn't equal to 0 (you also have Q' for the irrationnals like pi). Finally R are for the reals. It's important to note that each categorie can contain some of the other categories. For example, all natural numbers are integers, and all integers are real.
EDIT : As commented below, apparently 0 isn't included in N, but in N* (Natural numbers including 0) or W (Whole numbers). Didn't learn it that way, but maybe some people did ?
MorrisonsLament t1_j6bvvn1 wrote
Reply to ELI5: When you have no cellphone service, how can you still make calls to emergency services (eg. 911)? by 2Girls1Pet
What you are probably thinking of is that you don't need credits to call emergency services. You can be at 0 cents or pence and still call them. But if there is no service, that's just what that means, NO service, your phone cannot reach a tower or call anyone
CyreneDuVent t1_j6bvuxp wrote
Reply to ELI5: When you have no cellphone service, how can you still make calls to emergency services (eg. 911)? by 2Girls1Pet
If there is truly zero bars of coverage of any network in the area, you cannot make emergency calls.
There are two situations in which you can make emergency calls even when your phone shows no service. Firstly, if your provider doesn't have coverage in the area but another does, you can make calls using that other network. There is software built into phones that allow them to access networks that they don't have sim cards for to make emergency calls. Secondly, if you don't have a sim card, don't have a plan, or your sim card is broken, that same tech lets you call emergency services without a plan. Your sim card just gives information like your number and access to normal phone services - it's your phone's antenna that actually makes the call
[deleted] t1_j6bvr22 wrote
kdieick t1_j6bvhq3 wrote
Reply to ELI5: When you have no cellphone service, how can you still make calls to emergency services (eg. 911)? by 2Girls1Pet
You don't. When you don't have service, you don't call anyone. Maybe you can call 911 on someone else's phone that has service.
EDIT: If by "service" you mean you don't have a paid subscription, then the carrier provides 911 calls for free anyway by law. If you mean you don't have service because of lacking signal, then you can't call 911. Both are a lack of service.
WinterSon t1_j6bv4af wrote
Reply to comment by SassySybil71 in eli5: Why does cheap alcohol taste worse than nicer alcohol? by Chase_The_Dream
> Cali girl
At first glance this looks like "call girl" lol
illessen t1_j6buokb wrote
Reply to comment by blakevh in ELI5: why do our bodies randomly act like we haven’t had water in days and that we need to chug a bunch randomly? by Serratedlily
I’ve always been told, if you’re thirsty that you’re already dehydrated.
TremulousHand t1_j6buhqh wrote
Reply to comment by blkhatwhtdog in eli5: Why does cheap alcohol taste worse than nicer alcohol? by Chase_The_Dream
I almost never drink the American macrobrews, but I was curious about looking into this. While rice is common, corn is actually more common (especially in the form of corn syrup). Hilariously, many companies pass both ingredients off as variations of "fine cereal grains" without actually specifying what they mean exactly.
Of the 13 most popular beers in the US (rankings based on what I found in a USA Today article), three have rice, nine have corn (usually syrup), and there's only one with no rice or corn.
Rice: Bud Light, Budweiser, Michelob Ultra
Corn: Coors Light, Miller Lite, Corona Extra, Modelo Especial, Natural Light, Busch Light, Busch, Keystone Light, Miller High Life
No rice or corn: Heineken
I do think calling them barley flavor rice sake is a bit unfair to sake, which has a much more complicated fermenting process than beer. In any event, I had no idea how much corn syrup goes into cheap American beers.
noopenusernames t1_j6bueks wrote
Reply to comment by Sand_Trout in ELI5: What is the difference between turbojet, ramjet, and scramjet? by Global_Maize_8944
My fucking hero. Thank you. I tried finding this for so long and for some reason my Google skills were failing me
_plinus_ t1_j6bsxb0 wrote
Imagine you tie a golf ball to a fan and lie beneath it and mapped its position. The golf ball would make a circle, and we could graph its movement using the x-y coordinates.
Now imagine you’re looking at the golf ball from the side. It’s still making the same movements, but it’s difficult to graph it’s movement because it looks like it’s only moving along the x axis.
In this example, imaginary numbers are the missing coordinate plane. They help us graph the behavior even though part of the movement doesn’t necessarily make sense/isn’t visible from our perspective.
earlandir t1_j6bswn3 wrote
Reply to comment by phiwong in ELi5 : If you can access a website, why cant you steal the source code and make a 1:1 copy of it? by 13lettersinhere
Iirs way worse than that. It's more like taking a picture of a restaurant and thinking you could go recreate the restaurant and dishes.
Birdie121 t1_j6bsvva wrote
Reply to ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
Electricity interrupts nerve impulses, which isn't helpful for microorganisms without nerves. It could help with nematodes and some some other animal pathogens. But water isn't a very good conductor of electricity and it would be hard to ensure that it's effective at killing everything rather than just some/most things.
Another way electricity kills stuff is by heating up the organism enough to cause severe tissue damage, but this is difficult to do with water and will take a lot of energy. Boiling has the same effect.
Snatch_Pastry t1_j6bsnb4 wrote
Reply to comment by blkhatwhtdog in eli5: Why does cheap alcohol taste worse than nicer alcohol? by Chase_The_Dream
I've toured a couple smaller distilleries that do this. They make grain alcohol. They cut it with water to make vodka. They cut it with water and age it in barrels to make whiskey. They cut it with water and throw it in a tub with a Christmas tree and lawn trimmings to make gin.
Flair_Helper t1_j6bzgob wrote
Reply to ELI5: When you have no cellphone service, how can you still make calls to emergency services (eg. 911)? by 2Girls1Pet
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