Recent comments in /f/explainlikeimfive
ISBN39393242 t1_j66ill2 wrote
Reply to comment by srcarruth in Eli5 How are seedless grapes made? by Exact-Vast3018
>People think science is magic too often.
you can say that again.
peoples’ expectations of science and medicine are so wild. and the more uninformed, the more they expect. when you’re an actual scientist you realize it’s a mix of working banging your head against the wall for the most tiny incremental gain in knowledge (this is the vast majority of science) + the rare landmark finding, which usually gets milked for its every potential application across all fields of science.
but people really sit back and think scientists could just do whatever they wanted if they felt like it (and therefore the reason e.g. aids has no cure is because they don’t care enough, as opposed to the fact that it’s actually not possible).
whysaddog t1_j66iag6 wrote
Reply to ELI5: Why do US cops in press conferences always have a dozen useless people standing behind them? by rock_monkeys
Normally, they have the people that do the work, a few people that are in charge of those people, people to take lateral credit and someone they can blame if it doesn't go well.
[deleted] t1_j66htc5 wrote
_Haverford_ t1_j66h6e6 wrote
Reply to comment by 0000GKP in ELI5: Why do US cops in press conferences always have a dozen useless people standing behind them? by rock_monkeys
And also, OP's take is a little reactionary. Being visible is a real part of the job. If commander X is always giving press conferences alone, the public thinks that resources are not being devoted to the task.
srcarruth t1_j66gzg0 wrote
Reply to comment by Exact-Vast3018 in Eli5 How are seedless grapes made? by Exact-Vast3018
Maybe they are, all navel oranges are related to a single mutant tree. Made from cuttings and endlessly propagated. People think science is magic too often.
ffrkAnonymous t1_j66gunk wrote
Reply to comment by Dovaldo83 in ELI5: Is aluminum common enough that it’s not a concern, or are we just really good at recycling it? by RestrictedCervical
I vaguely recall seeing a museum exhibit on cutlery. When royalty had guests, they brought out not silverware but the aluminum-ware.
0000GKP t1_j66g9j2 wrote
Reply to ELI5: Why do US cops in press conferences always have a dozen useless people standing behind them? by rock_monkeys
>1 cop and 1 DA releasing the details, and no less than 11 other officials standing around just to give them status. Seriously, go and solve a burglary or something.
Those people aren't the ones who investigate burglaries.
​
>As something who works in the private sector, if I stand around doing nothing I will get fired.
Because you are a low level nobody. Those are agency heads, elected officials, and other high ranking people that would do the firing.
Chromotron t1_j66fxvp wrote
Reply to comment by TheJeeronian in ELI5: How do we define the boundary between earth’s atmosphere and space? by crenshawcrane
But the bow shock is a result of the magnetic field, not atmospheric density or effects. Ultimately the question is "who cares?"; it doesn't matter at all if one is technically inside the atmosphere or not.
[deleted] t1_j66fssv wrote
Reply to Eli5 How are seedless grapes made? by Exact-Vast3018
[removed]
varialectio t1_j66fh13 wrote
Reply to Eli5 How are seedless grapes made? by Exact-Vast3018
Like other seedless things, you cross two varieties that you know will produce seedless progeny in the first generation (F1 hybrids). You obviously can't produce offspring from them so if you want to breed more plants you have to go back to the original parents each time.
You can always take cuttings and propagate your seedless variety as clones too.
Exact-Vast3018 OP t1_j66fgni wrote
Reply to comment by dan_the_man48 in Eli5 How are seedless grapes made? by Exact-Vast3018
Ok i had a feeling they were manipulated the same way bananas were, i always thought they were natural.
stoygeist t1_j66fg8o wrote
Reply to ELI5: Why do US cops in press conferences always have a dozen useless people standing behind them? by rock_monkeys
I'm pretty sure it's a show of force / show of everyone in the department is behind them sort of thing. Typical PR tactic. Same goes for someone caught cheating or a company doing something wrong.
dan_the_man48 t1_j66f7br wrote
Reply to Eli5 How are seedless grapes made? by Exact-Vast3018
Selective breeding, like most things grown today you take what properties of the fruit or vegetable that you like and keep growing that kind untill you end up with seedless bananas or seedless grapes
A-know-me t1_j66f5n5 wrote
Reply to ELI5: Why do US cops in press conferences always have a dozen useless people standing behind them? by rock_monkeys
To imply that the things being said are supported by a lot of people, (=everyone) and that to disagree means "you gotta fight all my friends."
breckenridgeback t1_j66cx7p wrote
Obesity - especially abdominal obesity - is part of a broad cluster of conditions collectively known as metabolic syndrome. This syndrome includes, among other things:
- Diabetes
- Cardiovascular disease
- High blood pressure
- High cholesterol (or more properly, high LDL and low HDL, the "bad" and "good" cholesterols respectively)
- High blood triglycerides (fats)
These things are all interrelated in complex ways.
For example, fat cells are related to insulin, in the sense that insulin stops fat cells from releasing their stored fat. Insulin, in turn, is related to high blood sugar, in that high blood sugar stimulates the release of insulin. But high insulin levels for extended periods can result in insulin resistance and hence diabetes, which causes high blood sugar to stick around and fat cells to improperly release fats into the bloodstream. Those floating fats can build up in blood vessels, causing high blood pressure and ultimately heart disease. And the poor circulation from that disease can combine with the poor circulation caused by diabetes to...
...yeah, like I said, complicated.
In part, becoming very obese is as much a symptom of underlying breakdowns in the way the body regulates energy intake as it is a cause of those breakdowns. It's all part of a bunch of feedback loops where which is cause and which is effect becomes kind of unimportant, because they're all causing and reinforcing one another.
qqCloudqq t1_j66cuyi wrote
To explain it like you are five well there are different types of fat cells Visceral fat produces more toxic substances than subcutaneous fat, so it is more dangerous. Even in thin people, having visceral fat carries a range of health risks. It is a type of fat that wraps around your internal organs. Unfortunately being obese means you most likely have that type of fat as well.
zebtacular t1_j66c9tz wrote
Reply to comment by Haggls in Eli5 why our brain sometimes out of nowhere brings embarrassing/bad moments or encounters you’ve had by barking_at_cars
Avoid farting extremely loud in the 3rd grade while trying to show off abs in class. Got it.
Anerky t1_j66bb0b wrote
Weight adds wear and tear to your joints because there is more pressure, your heart and lungs also have to work harder, there can be a buildup of fats which clog your arteries leading you to cardiovascular failure such as heart attack or stroke, possibly amputations etc. Obese people also are much less likely to fare well with many, many other health conditions and diseases in general
[deleted] t1_j66a3zf wrote
[removed]
Mammoth-Mud-9609 t1_j669j7k wrote
Reply to ELI5: What is a water spring? by cheonsang-ui
Rain falls and it becomes trapped between layers of rock in the ground resulting in an aquifer, pressure can build up forcing the water to the surface. https://youtu.be/xbUfVLxYVcE
Haggls t1_j669h69 wrote
Reply to Eli5 why our brain sometimes out of nowhere brings embarrassing/bad moments or encounters you’ve had by barking_at_cars
It's a survival instinct. We didn't like the situation and our mind wants us to remember it so we can try to avoid it.
syds t1_j66920m wrote
Reply to comment by BoredCop in ELI5: Is aluminum common enough that it’s not a concern, or are we just really good at recycling it? by RestrictedCervical
how do u separate it? skim it out?
halpless2112 t1_j668541 wrote
Reply to comment by Legal_Ad_9782 in ELI5: why do we eat so much after getting high by ani77
I’d say their explaination is better than yours
oblivious_fireball t1_j66iy43 wrote
Reply to comment by Exact-Vast3018 in Eli5 How are seedless grapes made? by Exact-Vast3018
usually seedless plants don't evolve from seed-bearing ones very often, simply because the plant then needs to reproduce through other means like offshoots or broken off pieces rerooting without human help, and most die out faster than these methods occur or can't spread away from the parent easily. One of the only natural cases i can think of is Devil's Ivy which has a genetic defect that prevents it from producing its flowers and therefore seeds. But its a rapidly growing vine that produces a lot of rooting hormone, so it pretty readily spreads and any broken pieces easily root down into new plants.