Recent comments in /f/explainlikeimfive
darklegion412 t1_jaaflwp wrote
Reply to comment by Ansuz07 in Eli5: How did people know how long a year was in olden times? by Slokkkk
>you'll quickly realize that it changes on a predictable ~365-day loop.
Quickly, being relative here.
u193 OP t1_jaafj6r wrote
Reply to comment by baggier in ELI5: Modulus of Elasticity - incredibly high values for wood? by u193
So does that mean that it would take 1.8 million PSI to stretch the wood to double its length; however, it would yield long before that?
Soranic t1_jaafguq wrote
Reply to comment by Naive_Composer2808 in ELI5: Why is it that when fertilizers make their way into waterways, all the oxygen disappears, killing the fish? by Psychological-Dog994
Since these zones are usually dead anyway, could we detonate a nuke at the bottom of the dead zone so it mixes everything?
Q-Westion OP t1_jaaffnx wrote
Reply to comment by mugenhunt in ELI5: help me understand what Banner meant by "changing the past doesn't change the future". by Q-Westion
I like your explanation!
ToasterPops t1_jaafamc wrote
Reply to Eli5: When/How did the world realize that it wasn’t the same time everywhere? by Ice_Ice_Fetus
When the speed of communication was faster than the rotation of the earth.
But what really made time zones a thing was trains. Everyone basically used their own local "highnoon" as a time reference and it wasn't working for keeping trains on a schedule
https://www.history.com/this-day-in-history/railroads-create-the-first-time-zones
Revenge_of_the_User t1_jaafa0m wrote
Reply to comment by takemybomb in ELI5: Why is it that when fertilizers make their way into waterways, all the oxygen disappears, killing the fish? by Psychological-Dog994
Its misworded; the issue is that when the agae dies, the decomposition process eats up the oxygen....and as stated somewhere above, causes more stuff to die, causing more decomposition, causing less oxygen and more death......its pretty concerning honestly. There are pockets of no oxygen moving around in the ocean that just suffocate things.
Q-Westion OP t1_jaaf2k5 wrote
Reply to comment by stairway2evan in ELI5: help me understand what Banner meant by "changing the past doesn't change the future". by Q-Westion
When you explain it as two seperate universes, I understand. Thank you.
Big_carrot_69 OP t1_jaaf0hq wrote
Reply to comment by [deleted] in Eli5: An adult human body weighing 70 kg contains about 0.2 milligrams of gold inside him. How did that gold got in the humans if no foods have gold and gold is not absorbed during digestion either? by Big_carrot_69
but gold is not absorbed, i just passes to the colon
Q-Westion OP t1_jaaez81 wrote
Reply to comment by km89 in ELI5: help me understand what Banner meant by "changing the past doesn't change the future". by Q-Westion
This, I understand! Thank you.
a4mula t1_jaaeyr8 wrote
Reply to Eli5: When/How did the world realize that it wasn’t the same time everywhere? by Ice_Ice_Fetus
Time isn't different. Humans created labels that have been adhered to that's all.
If you left London and sailed to New York at 15 knots. It would take the same amount of time regardless of the standards in use.
That's not to say time is static, Einstein proved its relative, but that's a different consideration and one that has very little bearing on the conversation due to our relatively slow speeds.
Revenge_of_the_User t1_jaaesjn wrote
Reply to comment by Spiritual_Jaguar4685 in ELI5: Why is it that when fertilizers make their way into waterways, all the oxygen disappears, killing the fish? by Psychological-Dog994
The astronaut everyone loves, cant remember his name, demonstrated this not too long ago by being pretty deep below water level where the pressure is just...much greater than on a beach.
He shook a soda pretty vigorously, and then cracked it. Since the pressure was so high down there, the pop only slightly fizzed.
This is also why deep divers have to surface slowly, or spend time in a hyperbaric (pressure) chamber if the need to surface quickly. The nitrogen gas in their blood/tissue expands as they go up, and needs to be done slowly or you get "the bends". Think meat balloon on a cellular level. Can be fatal, or cause life long problems. One guys body swelled up like crazy after an emergency deep dive surfacing (lost his air hose) and survived; though the hyperbaric chamber didnt really help him like it can others - he stayed unfortunately very swollen. But at least he didnt die. The bends are very painful, im told.
All because of gasses in liquids at varying pressures.
rhamled t1_jaaem3q wrote
Reply to comment by TrollErgoSum in ELI5: how does rendering a video game resolution above your monitor resolution make the picture more crisp? by ItsSnowingOutside
I love the eli5 hardware version of your comment. Just how we trick rocks with electricity to get to that sophistication makes me happy.
Kasmoc t1_jaaek6l wrote
Reply to comment by mugenhunt in ELI5: help me understand what Banner meant by "changing the past doesn't change the future". by Q-Westion
But then captain wen’t back and lived his whole life, ending up in the same timeline. I hope i remember it wrong, but that’s bad continuity
Durris t1_jaad6hq wrote
Reply to comment by Spiritual_Jaguar4685 in ELI5: Why is it that when fertilizers make their way into waterways, all the oxygen disappears, killing the fish? by Psychological-Dog994
Algae doesn't "breathe up all the water-oxygen" though.
richtl t1_jaacvp1 wrote
Reply to comment by Any-Growth8158 in ELI5: In simple terms what are Maxwell’s equations and how do they work and what do they mean? by whocaresfuckthisshit
I think Maxwell's equations are one of the most beautiful things in physics. I remember being awestruck by how an entire semester of thermodynamics class simplified to these four simple elegant equations.
ZerexTheCool t1_jaacmx3 wrote
Reply to comment by its-a-throw-away_ in ELI5: Why is skin considered an organ? by PapaMamaGoldilocks
Skin totally gets 4 stars.
AndOfTheSevenSeass t1_jaacj83 wrote
Reply to comment by phiwong in ELI5: why do grocery stores in the US keep such a large inventory? Aside from being prepared for episodic panic buying like toilet paper or bottled water, is there an economic reason to do this? How much of the food ends up going bad? by DrEverythingBAlright
Pretty inspirational how you didn’t address OP’s question at all but still wrote a 100 word comment that explains nothing about supply chains.
Fat_Doinks408 t1_jaacbqb wrote
Reply to comment by Spiritual_Jaguar4685 in ELI5: Why is it that when fertilizers make their way into waterways, all the oxygen disappears, killing the fish? by Psychological-Dog994
This is why i f*cken love reddit!! Learn something new everytime!
baggier t1_jaac8mv wrote
Reply to comment by breckenridgeback in ELI5: Modulus of Elasticity - incredibly high values for wood? by u193
This. The modulus of elasticity is the force need to stretch something (hypothetically) 100% . Most things cant stretch 100% so you stretch it by say 1% and multiply the result by 100
Budson420 t1_jaac4km wrote
Just like the kid in the little Caesar’s commercial, they looked to the stars for the answers
thebiologyguy84 t1_jaac3z6 wrote
Reply to ELI5: Why is it that when fertilizers make their way into waterways, all the oxygen disappears, killing the fish? by Psychological-Dog994
Ok, I teach this to my biology students: Algae are members of the protoctists (essentially organisms that don't quite fit the definition of animal, plant, or fungus). They grow rapidly in fertiliser causing light to be blocked from water plants. They die leaving behind a smorgasbord of food for bacteria and fungi and other decay-eating microorganisms. As they live, like us they need oxygen to perform respiration.....taking oxygen from the water, leading to larger organisms such as fish to die, leading to more bacteria etc etc etc finally causing anoxic water which smells and nothing larger than a cell is alive in it.
takemybomb t1_jaabvkh wrote
Reply to comment by Spiritual_Jaguar4685 in ELI5: Why is it that when fertilizers make their way into waterways, all the oxygen disappears, killing the fish? by Psychological-Dog994
Algae isn't creating oxygen as a process though? or there many type of algae.
[deleted] t1_jaabvke wrote
[removed]
WeDriftEternal t1_jaafnxj wrote
Reply to Eli5: When/How did the world realize that it wasn’t the same time everywhere? by Ice_Ice_Fetus
It is the same time everywhere.
We just make up what time it is to make our lives easier. There is no particular reason that we need to use any specific time anywhere or all can't be on the same exact clock everywhere. We choose to do it because it can be useful.
Lets say we all agree that noon is when the sun is highest in the sky. No matter where you are, when the sun is highest, its noon. Of course noon in New York, is gonna be hours behind noon in London. This is how it works now, more or less.
But what if we didn't care where you were on earth?. What if noon was when the sun was highest in London, and everyone else used London time. For New York, the sun will be lower. But it would still be noon
Does any of it matter? Does it matter that the sun is lower in New York and its noon? Couldn't people in new york just say start their day at 1pm instead of 8am, then go to bed at like 3am?