Recent comments in /f/explainlikeimfive
EasterBunnyArt OP t1_iuipks0 wrote
Reply to comment by svenson_26 in Eli5 How did humanity manage to ventilate mines? by EasterBunnyArt
Sounds like it
[deleted] t1_iuipk8g wrote
Reply to comment by anti_plexiglass in eli5 - How can the human body be composed of 70% water when it feels and behaves like any other solid? by Virtual-Structure447
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mousicle t1_iuipj7r wrote
Reply to ELI5: Representation of Non Terminating Real Numbers on the Number Line by ProfessionalAd7023
The numbers we can "easily" plot on a number line are the constructible numbers, those that the ancient greeks worked with that can be made with a ruler and a compass. The constructible numbers are a tiny tiny subset of all the real numbers. Being able to be esily found on a numberline is not part of the definition of a Real number. All the Real numbers are there on the numberline but being able to easily find them has nothing to do with being Real.
[deleted] t1_iuipixo wrote
Reply to comment by [deleted] in ELI5 why is everybody saying that an 1.5°C increase in global temperature is catastrofic? by BloodyBite1
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[deleted] t1_iuipi0l wrote
Reply to comment by [deleted] in eli5 What is gerrymandering? by Robert-Connorson
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drafterman t1_iuipahj wrote
Reply to ELI5: Representation of Non Terminating Real Numbers on the Number Line by ProfessionalAd7023
Units are arbitrary. Consider, you wouldn't balk at me having a line that is 6 units long and then dividing it into three segments each 2 units long apiece.
But all I have to do is then say that the whole line is 1 unit. That automatically makes the segments 1/3 long each. Exactly. You can't say they were all exactly 2 units long but then refuse to accept them being 1/3 units long now. They didn't change their actual length simply by me using different units to represent that length.
So either no number can be exactly represented or they all can.
eloel- t1_iuipadc wrote
Reply to comment by ThenaCykez in eli5 - How can the human body be composed of 70% water when it feels and behaves like any other solid? by Virtual-Structure447
People, like grapes, leak liquid when you bite into them.
tollthedead t1_iuipada wrote
Reply to comment by lsquallhart in ELI5: What happens to your body when a panic attack takes place? by Ronin77tolli
I would get panic attacks where i would feel like choking because i couldn't breathe deep enough, and then i ended up hyperventilating and feeling worse. I used a trick i found online where you purposefully force yourself to breathe slowly and shallowly and observe that you're not dying or fainting. It works like a charm whenever i get the feeling that this is going to happen
[deleted] t1_iuip5dt wrote
Reply to comment by bascalie in Eli5 what is the difference between polinominal and binominal data in data analysis by bascalie
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[deleted] t1_iuioz5q wrote
Reply to Eli5 What are the long term consequences of drugs that suppress REM sleep? by muted_Log_454
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MotherMaintenance342 t1_iuioylz wrote
Reply to comment by EldestPort in Eli5 What are the long term consequences of drugs that suppress REM sleep? by muted_Log_454
Doesn't seem like it's based on specific drugs though, which strengthens their point. Not a bad study, but still not as precise as desired.
TucsonTacos t1_iuioxp9 wrote
Reply to comment by FriendoftheDork in ELI5 Why are airport ceiling so high? by TrShry
I mean that’s how the mall works. I’m not an engineer nor did I build it.
You’re just speculating that it ‘probably’ sucks because you ‘feel’ it must work like you think it does. I can’t explain why it does or doesn’t, but there’s no possible way when the mall opens it is -20 inside and they just pray enough people stay and shop in full winter gear until it warms up and they can take their coats off.
They’d never get enough people. Nobody would stay.
hiricinee t1_iuiowgo wrote
I think you're talking about energy you weren't able to measure in an experiment. For your example, the smoke coming off of the burning food was energy escaping that you might not have been measuring. I'm also not an expert on chemistry, but the reactions may have produced chemical energy, where some of the energy was used to synthesize chemicals and is stored in their bonds (not measurable via heat.)
If I'm following the logic properly, you're trying to figure out why your measured energy didn't add up to the calculations you did to predict it, and where that energy went.
PuzzleMeDo t1_iuioup9 wrote
'Energy loss' has little meaning unless you were trying to do something with that energy.
A useful context would be in something like a car engine. Some of the energy from the fuel is lost via (for example) heat escaping from the cylinders and the engine, instead of propelling the car.
So if you were burning food to heat the room, light would be lost energy. If you were burning food to light the room, heat would be lost energy.
But if you were burning food for no particular reason (beyond 'experiment') the question is pretty meaningless, unless the intended answer is something along the lines of, 'energy is never lost to the universe, it just changes form'.
[deleted] t1_iuiotut wrote
Reply to comment by [deleted] in eli5 What is gerrymandering? by Robert-Connorson
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[deleted] t1_iuiorhr wrote
Reply to eli5 What is gerrymandering? by Robert-Connorson
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[deleted] t1_iuiop4f wrote
Reply to comment by [deleted] in eli5 What is gerrymandering? by Robert-Connorson
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[deleted] t1_iuiop1a wrote
Reply to comment by [deleted] in eli5 What is gerrymandering? by Robert-Connorson
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berael t1_iuioo7x wrote
Reply to ELI5: Why is 212 degrees Fahrenheit equal to 100 Celsius, but 50 Celsius is not 106 degrees Fahrenheit? by [deleted]
From freezing to boiling in Celsius is 0 to 100. Halfway is 50.
From freezing to boiling in Fahrenheit is 32 to 212. Halfway is 122.
What's 50C in F? It's 122!
yearofthebows24 t1_iuionfw wrote
Reply to eli5 What is gerrymandering? by Robert-Connorson
Imagine you live in a state with three districts and 30 people, 20 democrats and 10 republicans. Normally, you would expect to have 2 democrats elected and 1 republican because thats representative of your state. Pretty standard statistics and expected values.
However, lets say the governor draws new district lines. He crams 12 of the democrats into one group, and 4 democrats and 5 republicans in the other two. Well now the republicans outnumber the democrats and you get 2 republican representatives and 1 democrat. The representation is now no longer is indicitive of the population.
stairway2evan t1_iuiomai wrote
Reply to ELI5: Why is 212 degrees Fahrenheit equal to 100 Celsius, but 50 Celsius is not 106 degrees Fahrenheit? by [deleted]
The scales have two major differences between them - their degrees aren't the same size, and they each have different starting points. An increase of one degree Celsius is a bigger change in heat than one degree Fahrenheit (1.8 times as much), so there's a specific ratio between the two. And the Celsius scale sets its zero point at the freezing point of water, while the Fahrenheit scale sets its zero at a particular chemical reaction of ice and ammonium chloride (called a frigorific mixture), because it was consistent to reproduce and always comes to the same temperature.
So the conversion from Celsius to Fahrenheit, you multiply by 1.8 (the ratio between their degrees) and add 32. And going from F to C, you do that backwards - subtract 32, then divide by 1.8. So 50°C using that formula gets us to 122°F.
anti_plexiglass t1_iuioll1 wrote
Reply to comment by [deleted] in eli5 - How can the human body be composed of 70% water when it feels and behaves like any other solid? by Virtual-Structure447
Dude, how would you describe play-doh?
bulksalty t1_iuiolfl wrote
Reply to comment by Robert-Connorson in eli5 What is gerrymandering? by Robert-Connorson
There's a very nice browser game where you need to redistrict with specific goals to show how districts can be made and gerrymandered.
The name comes from a governor (perhaps of Massachusetts) named Gerry who drew a district that looked somewhat like a salamander (the creature was quickly named a 'Gerrymander'.
[deleted] t1_iuioktm wrote
Reply to comment by [deleted] in eli5 What is gerrymandering? by Robert-Connorson
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bloodalchemy t1_iuipp33 wrote
Reply to comment by dimonium_anonimo in eli5 What is gerrymandering? by Robert-Connorson
We can. But there is no strong incentive for politicians to do that. Both sides like the current manual process because either it's in their favor and they win, or they lose but they can stir up rumors that the vote was rigged. Either way the politician remains relevant in the public's mind.