Recent comments in /f/explainlikeimfive
Hooch-is-not-crazy t1_j6g52i1 wrote
Reply to comment by yolofreeway in ELI5:Why is barbary slave trade never talked about in mainstream history? by yolofreeway
When were your great grand parents born?
[deleted] t1_j6g5121 wrote
Reply to comment by ZevVeli in ELI5: How do they come up with names for countries in foreign languages? by bentobam
[deleted]
saywherefore t1_j6g4usu wrote
Reply to comment by TietVinh in ELI5 what statically determinate and indeterminate structures are and why such classification exists. by TietVinh
You are welcome
Roobar76 t1_j6g4tb9 wrote
Reply to comment by Saint_D420 in Eli5....can you dig a well anywhere and hit water...and how did the early ranchers in the West know where to dig for water. Especially in the really dry areas? by pinkshrinkrn
There’s a bit of confirmation bias there. Rural areas developed where there was water and didn’t where there wasn’t. So where there is a long farming history there is generally surface or ground water, and the bits that ended up in national parks/reserves it’s either deeper or not there.
Bonneville865 t1_j6g4rxi wrote
Reply to comment by pierrekrahn in ELI5- what is the difference between a liquid and a fluid? by stinkybuttttt
That’s fluid as an adjective. OP was asking about fluid as a noun.
mildly_sexy t1_j6g4jf8 wrote
Reply to comment by StupidLemonEater in ELI5- what is the difference between a liquid and a fluid? by stinkybuttttt
Stagnant liquid doesn’t flow
ninetentacles t1_j6g4hqr wrote
Reply to comment by breckenridgeback in ELI5: Why is exercise good to lower high blood pressure? Your blood pressure rises while exercising, so how does that not have the same effect as high blood pressure while resting? by jeezwill
Ah, was just wondering because it's often at lower heart rates when I feel my heart pounding particularly forcefully, but I think my oxygen transfer may be a bit out of whack cause rona.
Will deconditioning cause your resting heart rate to go back up? Or if you're less active will you still maintain your low RHR past the point where whatever damage people think you're going to cause yourself by not pushing yourself to exercise til you drop through something like long COVID?
TietVinh OP t1_j6g4aq7 wrote
Reply to comment by saywherefore in ELI5 what statically determinate and indeterminate structures are and why such classification exists. by TietVinh
Thank you kind stranger
explainlikeimfive-ModTeam t1_j6g4927 wrote
Reply to ELI5: Why is exercise good to lower high blood pressure? Your blood pressure rises while exercising, so how does that not have the same effect as high blood pressure while resting? by jeezwill
Please read this entire message
Your submission has been removed for the following reason(s):
- ELI5 requires that you search the ELI5 subreddit for your topic before posting.
Please search before submitting.
This question has already been asked on ELI5 multiple times.
If you need help searching, please refer to the Wiki.
If you would like this removal reviewed, please read the detailed rules first. If you believe this was removed erroneously, please use this form and we will review your submission.
Whitehatdvl t1_j6g42su wrote
Reply to comment by ZevVeli in ELI5: How do they come up with names for countries in foreign languages? by bentobam
What's weird to me is if you read stuff from the WWII era and before, it was common for people to refer to Japan as Nippon, and they called Japanese people Nipponese (if they weren't using a pejorative). It's kinda crazy that everybody says Japan now in English instead of Nippon, which is what the Japanese say.
mostlygray t1_j6g3z7z wrote
Reply to comment by crono141 in Eli5....can you dig a well anywhere and hit water...and how did the early ranchers in the West know where to dig for water. Especially in the really dry areas? by pinkshrinkrn
They did try hiring a water witch. That didn't work.
saywherefore t1_j6g3tn3 wrote
Reply to comment by TietVinh in ELI5 what statically determinate and indeterminate structures are and why such classification exists. by TietVinh
There are advantages to building statically determinate structures beyond the simplicity of analysis; mostly related to the lack of prestress which means you can get away with larger manufacturing tolerances.
However in practice it is hard to achieve a truly determinate structure, and in many cases it is not necessary to even attempt it. There are analysis techniques that apply to indeterminate structures so it’s not like we just build those blindly and hope for the best.
explainlikeimfive-ModTeam t1_j6g3t7a wrote
Your submission has been removed for the following reason(s):
Loaded questions, or ones based on a false premise, are not allowed on ELI5 (Rule 6).
If you would like this removal reviewed, please read the detailed rules first. If you believe this was removed erroneously, please use this form first. If you believe this was removed erroneously, please use this form and we will review your submission.
Parkour63 t1_j6g3n4i wrote
Reply to ELI5: How does surgery on tendons work? by RaphaelRhyss
Hand surgeon here. I’ve repaired my fair share of tendons.
I assume you’re referring to a surgery where a tendon is ruptured or cut, and needs repair.
Repairs are pretty straightforward. You make a cut, find both ends, and suture them together.
If a tendon tore from its attachment to the bone, you usually need to drill a hole into the bone and attach it with an anchor of some kind. (There are a wide variety of implants and techniques for this, so it’s hard to give more detail.)
Surgery is usually easier if you get it done sooner, so the tendon doesn’t retract or get covered with scar tissue.
Similarly, as soon as it’s safe, you’ll want to start gently moving, so the tendon doesn’t get stuck in scar tissue. Especially in hands!
If it isn’t clear, this is all very simplified, and is not a substitute for talking to a doctor in person if you think you need surgery!
If you give me a more specific question, I may be able to help you better.
TietVinh OP t1_j6g3bk1 wrote
Reply to comment by saywherefore in ELI5 what statically determinate and indeterminate structures are and why such classification exists. by TietVinh
So does whether a structure is statically determinate or indeterminate mostly serve the analysis stage of construction or do people actually build statically determinate/indeterminate structures and see how things go in order to improve from there?
saywherefore t1_j6g38dm wrote
Reply to ELI5: Why are contactless payment methods faster than inserting the chip? by jimmysofat6864
The time is not spent by the machine communicating with the card. When you do chip and pin the card machine is communicating with the bank or credit card provider, and checking that the card is genuine and can afford the payment. This takes non-negligible time. In a contactless payment the vendor doesn’t check the card and just takes a risk that it isn’t genuine. The transaction will be settled up at the end of the day. This is why there are generally limits on the value of transaction that you can do contactlessly; it protects the vendor from being left out of pocket for a large sum.
Edit: this answer is Eurocentric. I understand that the technology may be different in other places, though in that case I doubt there would be a noticeable difference in speed.
TheVicSageQuestion t1_j6g3325 wrote
Reply to comment by justlookingforajob1 in ELI5: How do they come up with names for countries in foreign languages? by bentobam
See, I thought the Bahamas were named after Baja Blast.
breckenridgeback t1_j6g31kd wrote
Reply to comment by ninetentacles in ELI5: Why is exercise good to lower high blood pressure? Your blood pressure rises while exercising, so how does that not have the same effect as high blood pressure while resting? by jeezwill
> Wouldn't your heart need to beat more forcefully to move the same volume of blood completely around your body at 60bpm than at 100bpm, though?
No. You don't need as much blood flow when your blood is more efficiently carrying oxygen, and it doesn't have to push as hard when it's not getting as much resistance from your arteries.
> And are these your own actual numbers, or are people more likely to see a more modest decrease in resting heart rate, like from 70bpm to 60? 100 seems awful high for "resting"!
It is high, yes. It's typical of someone with poor physical fitness, but not healthy. 60 bpm is a fairly normal healthy resting pulse. But the thrust of the explanation - that the heart does less work by having mild stress during exercise and less stress the rest of the time - stands either way.
BSixe t1_j6g2xhd wrote
Reply to comment by notsowisemonk in Eli5....can you dig a well anywhere and hit water...and how did the early ranchers in the West know where to dig for water. Especially in the really dry areas? by pinkshrinkrn
“Brainiac” haha haven’t heard that in forever I love it
JDTexas84 t1_j6g2td3 wrote
Reply to comment by milkytrizzle93 in Eli5....can you dig a well anywhere and hit water...and how did the early ranchers in the West know where to dig for water. Especially in the really dry areas? by pinkshrinkrn
The deepest anyone has ever been able to dig is about 8 miles. Every team that has tried has hit an impenetrable barrier keeping them from digging beyond this.
DisorderOfLeitbur t1_j6g2plq wrote
Reply to comment by Logizyme in 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
It gets worse. The American British Thermal Unit isn't the same as the Canadian British Thermal Unit.
Antman013 t1_j6g2nja wrote
Reply to comment by Folsomdsf in Eli5 why aren't gas only vehicles far more fuel efficient than before by Live_Strongerrr
Hint . . . I live in Canada. I'm aware. Also aware that most trips in the US (~60%) are six miles or less. 17.5% in the 6-10 mile range. Another 8.5% fall into the 10-15 mile range.
5% are over 30 miles
5% are 20-30 miles
​
So, what's your point?
Wild_Top1515 t1_j6g1zqc wrote
Reply to comment by drafterman in ELI5: What is the difference between fatalism and nihilism? by bluejester12
ahh who cares.
152centimetres t1_j6g57u8 wrote
Reply to comment by saywherefore in ELI5: Why are contactless payment methods faster than inserting the chip? by jimmysofat6864
not to mention the fact that if you put the chip in you actually have to select which account you're using and then put in your pin, which of course will take more time than just tapping the card to a screen