Recent comments in /f/explainlikeimfive
Spadeninja t1_iyc313a wrote
Reply to comment by BurnOutBrighter6 in ELI5 why we first multiply, then add by TheManNamedPeterPan
The thing that is confusing to me though is that math is precise - especially when considering massive undertakings like space flight for example
There are laws of physics and math… so if the reasons why the order of multiplication vs addition (despite leading to potentially VASTLY different conclusions) are somewhat arbitrary… why does it still work?
The example in the original post lead to two different answers, and that was an extremely basic example.
How does this work with hundreds of different calculations?
Way2Foxy t1_iyc2s6k wrote
Reply to comment by Sereaph in ELI5 why we first multiply, then add by TheManNamedPeterPan
I wasn't trying to be clever, I was just choosing random numbers.
You're right, though, and you definitely can use long multiplication to multiply any two rationals using only addition (though not sure if/how you can reduce to the lowest terms).
I got lost/distracted and started arguing something I didn't mean to initially. My initial argument that I still hold is that you can't define multiplication as simply repeated addition, and to further clarify I mean strictly that if you multiply a and b you add a to itself b-1 times.
dcp0002 t1_iyc2rlx wrote
Multiplication is like a crate/set or something. 1 Apple plus 2 crates with 3 apples each. 1 + 2x3 ... = 7.
TwiNighty t1_iyc2of0 wrote
Reply to comment by ohyonghao in ELI5 why we first multiply, then add by TheManNamedPeterPan
Because in a group, we are only dealing with a single associative binary operation, in which case parenthesis are indeed unnecessary.
kslusherplantman t1_iyc2nst wrote
Reply to comment by hablandochilango in ELI5: Why does the water from my kitchen sink taste better than the water from bathroom sink? by [deleted]
You have some evidence to back that statement up?
NinjaMan707 OP t1_iyc2inc wrote
Reply to comment by Big-Brain-031 in Eli5 why do women like to be dominated? by NinjaMan707
It’s an honest question. I don’t think you understood the question if you think I’m talking about men when I asked “why do women like to be dominated”.
thatguysaidearlier t1_iyc2bxp wrote
Reply to ELI5: Why does the water from my kitchen sink taste better than the water from bathroom sink? by [deleted]
In the UK the kitchen tap/faucet is attached directly to the incoming water main pipe.
The bathroom sinks, particularly in older houses, was sent through a header tank, so that the cold tap had a similar pressure and/or flow rate to the hot tap/faucet which was also regulated by a header tank.
Sometimes if not properly covered, those tanks were home to dead pigeons or squirrels, so you never drank from anywhere but the kitchen tap.
Might that explain the taste at your house?
Seeing if the water comes out at the same rate as the kitchen tap would be a good first test to see how it might be plumbed.
Primordial_Cumquat t1_iyc27x6 wrote
Reply to ELI5: Why do people with a few chest gunshot wounds usually die either in minutes to days after receiving necessary surgery? by AltAccAur
A single gunshot wound can cause significant damage. The prospect of bleeding out or a lung collapsing is very real unless help can be reached quickly. Once the next line of help is reached, repair can be complex and complications can arise.
But yeah, your question makes little sense, if you could refine or reword it.
SirX86 t1_iyc20rc wrote
Reply to comment by MoobooMagoo in ELI5 why we first multiply, then add by TheManNamedPeterPan
>Like 5x^2 is really obvious what it's supposed to be to most people
In the spirit of the original question, you could argue: why is it obvious that 5x² means 5*(x²) and not (5*x)²?
Indeed people often get confused over -x²: is that (-1)(x²) or (-1x)²?
TheVoteAThon t1_iyc1z9v wrote
Reply to ELI5: Why does the water from my kitchen sink taste better than the water from bathroom sink? by [deleted]
Your bathroom water might come from a storage tank, in which case, you probably shouldn't drink it.
Dimcair t1_iyc1yde wrote
Reply to ELI5: Why do people with a few chest gunshot wounds usually die either in minutes to days after receiving necessary surgery? by AltAccAur
Can you rephrase 'either in minutes to days after receiving necessary surgery' ?
Intergalacticdespot t1_iyc1xkw wrote
Reply to comment by tezoatlipoca in ELI5: why is using "goto" considered to be a bad practice in programming? by Dacadey
If you're writing BASIC (well apple][e/c64 era basic) it's not. You don't really have a choice. Now...probably is and not sure what youd even use it for other than some lazy hackish stuff.
Sereaph t1_iyc1wc1 wrote
Reply to comment by Way2Foxy in ELI5 why we first multiply, then add by TheManNamedPeterPan
you're trying to be clever using those decimals, but the concept is still the same.
First let's convert those decimals into symbology that's easier to work with (fractions):
0.75 = 3/4
0.44 = 11/25
0.75 x 0.44 = 3/4 x 11/25
So therefore using ADDITION to evaluate the multiplication of the fractions,
11+11+11 = 33 for the numerator
25+25+25+25 = 100 for the denominator
The fraction 33/100 simplifies to 0.33 in decimal form.
hablandochilango t1_iyc1s87 wrote
Reply to comment by kslusherplantman in ELI5: Why does the water from my kitchen sink taste better than the water from bathroom sink? by [deleted]
Experts can tell you where a wine was made and when, what are you on about?
Phage0070 t1_iyc1rtj wrote
Reply to comment by [deleted] in ELI5: If a company is public and a person owns 75% of the shares, can they be kicked out/fired by other board members? by OrdinarilyAliveHuman
Your submission has been removed for the following reason(s):
Rule #1 of ELI5 is to be nice.
Breaking rule 1 is not tolerated.
If you would like this removal reviewed, please read the detailed rules first. **If you believe it was removed erroneously, explain why using this form and we will review your submission.
kslusherplantman t1_iyc1o7j wrote
Reply to comment by PuzzleMeDo in ELI5: Why does the water from my kitchen sink taste better than the water from bathroom sink? by [deleted]
That has more to do with wine tasting being absolute bullshit than mental association even… they can put them in glasses with no bottles and the experts still aren’t on point compared to when they arent Pepsi challenged
DecentChanceOfLousy t1_iyc1nqo wrote
Reply to comment by MoobooMagoo in ELI5 why we first multiply, then add by TheManNamedPeterPan
That is, indeed, the whole point. You practice them so that they become second nature when you do more complicated math.
[deleted] t1_iyc1mte wrote
Reply to comment by [deleted] in ELI5: If a company is public and a person owns 75% of the shares, can they be kicked out/fired by other board members? by OrdinarilyAliveHuman
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[deleted] OP t1_iyc1lux wrote
Reply to comment by PuzzleMeDo in ELI5: Why does the water from my kitchen sink taste better than the water from bathroom sink? by [deleted]
[deleted]
Way2Foxy t1_iyc1lfu wrote
Reply to comment by nemplsman in ELI5 why we first multiply, then add by TheManNamedPeterPan
I don't think we disagree that doing multiplication prior to addition makes sense intuitively.
My point is that there's nothing forcing us to do it that way, and we could have a well defined system where we add and subtract first. If you disagree with that, then fair enough.
Phage0070 t1_iyc1kek wrote
Reply to ELI5: Why does the water from my kitchen sink taste better than the water from bathroom sink? by [deleted]
Your submission has been removed for the following reason(s):
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oldominion t1_iyc1cuw wrote
Reply to ELI5: Why does the water from my kitchen sink taste better than the water from bathroom sink? by [deleted]
Here it is the opposite, my cat doesn’t like the water from the kitchen sink but the water from the bathroom sink 😺
[deleted] t1_iyc1clw wrote
Reply to comment by [deleted] in ELI5: If a company is public and a person owns 75% of the shares, can they be kicked out/fired by other board members? by OrdinarilyAliveHuman
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Big-Brain-031 t1_iyc31jx wrote
Reply to comment by NinjaMan707 in Eli5 why do women like to be dominated? by NinjaMan707
A wild guess, but probably these women thought their man is very reliable so they wouldn't argue with their man? and just say yes to whatever their man says..
Again, it's a wild guess..