Recent comments in /f/explainlikeimfive
Andis-x t1_ja264hz wrote
Reply to Eli5: how do circuit board works by ots125
You start by having a fiberglass and resin board, that has copper foil "glued" on it. Then you remove the unnecessary copper (etching it) and you are left with copper that you need. Copper forms "wires" called traces, that are used yo connect components. Then you solder components to ends of these traces.
Aussie_Mo_Bro t1_ja262c7 wrote
Reply to comment by dmazzoni in ELI5: Why do Developers publish their code on Github to the public when “giving it away” could hurt their ability to monetize their creations? by AndreLinoge55
I've not worked anywhere that doesn't keep the code you write as their property.
Not saying it doesn't happen, and I haven't really been contracting
Flair_Helper t1_ja23nmx wrote
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Your submission has been removed for the following reason(s):
Loaded questions, or ones based on a false premise, are not allowed on ELI5. A loaded question is one that posits a specific view of reality and asks for explanations that confirm it. These usually include the poster's own opinion and bias, but do not always - there is overlap between this and parts of Rule 2. Note that this specifically includes false premises.
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explainlikeimfive-ModTeam t1_ja23n7b wrote
Please read this entire message
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 and we will review your submission.
ots125 OP t1_ja23m3n wrote
Reply to comment by propably_not in Eli5: how do circuit board works by ots125
This actually helps a lot thank you
propably_not t1_ja23iys wrote
Reply to Eli5: how do circuit board works by ots125
In its most basic form, it is a plastic board covered in fibreglass. Components are mounted on a non-conductive board and connected with small pathways, called traces. These traces allow the electrical components across the board to function by passing electricity through.
BurnOutBrighter6 t1_ja22hqn wrote
Reply to ELI5: if you’re lactose intolerant, why does the lactose cause bowel distress instead of passing through inertly? by chemstu69
> it’s isn’t broken apart?
It's not broken apart by you... but your intestines are full of billions of bacteria that can break it down just fine!
When your own body can't break down the lactose into a digestible form, that just means it passes through the stomach and becomes a huge pile of food for intestinal bacteria. The result is that:
- the bacteria multiply to much higher population levels than they should have, and
- all those bacteria eating all that food creates a bunch of waste products and gases
All the bacteria and their gassy excrement being generated inside your pipes is what causes the pain and bloating, not the glycocidic linkages!
MrDozens t1_ja2267j wrote
Reply to comment by DJKGinHD in ELI5 What is the "Shift ban" in Major League Baseball and why are people upset about it? by lokigodofchaos
Sure. But way easier said than done.
Gullible-Flounder-79 t1_ja21ysn wrote
Reply to ELI5: if you’re lactose intolerant, why does the lactose cause bowel distress instead of passing through inertly? by chemstu69
There are bacteria in your gut, if you don't digest the lactose the bacteria will metabolize it instead, the by-products of the bacterial metabolism is whats causing distress.
fiendishrabbit t1_ja20oqh wrote
Reply to ELI5. What happens to ‘criminals’ when the law changes and what they were imprisoned for is no longer illegal? by L0rdTeddingt0n
What happens depends on the country.
US law says expressly that nothing changes (US federal law, US Code Title 1, § 109. "Repeal of statutes as affecting existing liabilities") unless the law specifically states that it does (some laws have done so in the past). However, that's Common law (the fundamental principle of law as applied by states descended from the British empire).
If we instead look at countries which use Napoleonic code (law based on humanist principles), they use the principle of "Lex Mitior" (the milder law). Under the milder law any change in law is supposed to benefit the accused rather than the state. So in many countries that base their law on the Code Napoleon (notably France, but really most of the EU) when a law is repealed that triggers an automatic sentence review, and if it's no longer a crime "Hey hop, you're free to go".
P.S (maybe not so ELI5): "Hey hop, you're free to go" is in practice a bit more complicated than that. Many countries that practice Lex Mitior also practice "Socialism!". So before ratification (when it's signed by parliament/congress/whatever) and long before implementation (when the law goes into effect) the law is sent out for consultation. The prison system and social services get to say "Hey, no biggie. We can deal with this relatively quickly" or "uh. We're going to need X months to prepare for that, because this is huge". So on the day the law is ratified (signed) the bureaucracy gets to work. Sentences are reviewed, prisoners are scheduled for release, social services are notified so that they can set up the ground works (sending people out with no housing, no money and no social network would be a recipe for catastrophe) , relatives are notified etc so that when it's implementation day everything is set and people can be released in an orderly and humane manner.
tmrika t1_ja20cxu wrote
Reply to comment by Scuka1 in eli5 Why have there been so many earthquakes recently? by eddicwl
Yeah I remember people saying the exact same thing in 2011/2012, when people were somehow convinced the world was about to end. “But you have to admit, there have been more earthquakes and disasters lately” / “I have to admit no such thing, you’re just noticing more of them.”
billysugger000 t1_ja20bh6 wrote
Reply to ELi5 Why are assholes not festering? by tulaero23
You mean they aren't meant to?
T-T-N t1_ja1zxql wrote
Reply to comment by phiwong in ELI5 When you buy a house (USA), where does your money go? by W0lfyw0lfw0lf
A couple percent goes to the agent that clip the ticket, but then they do have to arrange for ads and open homes etc
uummwhat t1_ja1y35t wrote
Reply to comment by DJKGinHD in ELI5 What is the "Shift ban" in Major League Baseball and why are people upset about it? by lokigodofchaos
Yes, though do keep in mind hitting is really hard, and a lot of the "x guy hits the ball to y location" isn't always so much something he chooses to do so much as what he can do.
RTXEnabledViera t1_ja1wst3 wrote
The frequency illusion. Also known as the Baader-Meinhof Phenomenon.
You learn a new word, and suddenly you start seeing that word everywhere. It's not that it's actually occuring more frequently, it's just that you're suddenly paying more attention to it.
Earthquakes happen all the time. It's just that they're rarely as devastating as what happened in Turkey.
Scuka1 t1_ja1wrdw wrote
There hasn't been more earthquakes recently.
Just because there are more earthquakes being reported in the news doesn't mean there have been more earthquakes.
That's a good life lesson to learn. You shouldn't judge the world by the amount of attention certain events get in the news. News disproportionally report bad and shocking news, so you get the wrong idea that there's nothing but bad things happening in the world if you only go by the news headlines.
Earthquakes happen all the time in certain earthquake-prone areas of the world. There's nothing special about "recently", other than the fact that recently it happened to hit a highly populated area that was ill-prepared to handle that kind of an earthquake, so it became massive world news.
DressCritical t1_ja1wny8 wrote
Reply to ELI5: (1) = Equal Sign (2) ≡ Equivalence, Identity (3) ↔ Material BiConditional (4) ⇔ Logical BiConditional by 3neth
I think that maybe these explanations might be a bit hard to understand, and so I would like to make them simpler. Also, due to the close relationship between these four concepts, many people will tell you that some are the same as others when, in fact, they are not quite the same. It is not uncommon for this to be done in the classroom or in books on math and logic to simplify things, and it is quite possible that the distinction can be lost on, say, a teacher teaching the concepts. However, as these are stated as four distinct things I think that the nitpicky details are being asked for.
(1)= Equal Sign
This is equal to that. Example: 2+2=4
(2) ≡ Equivalence, Identity
If A ≡ B, then if A is true B is true and if A is false B is false. This is often described as "if and only if" and is sometimes written as iff. Example: You get $100 at the end of the semester ≡ Your GPA is over 3.5.
The next two can be a bit tricky as they are not always used exactly the same way in all math and logic. Additionally, both are forms of equivalence, and are thus often used interchangeably with equivalence and each other.
(3) ↔ Material BiConditional
This is used when two statements are connected together in equivalence, such that one is true if and only if the other is true at this time, but not necessarily at a different time or under different circumstances.
Example: Due to a snowstorm this morning (the material condition), Johnny cannot get to school from his house today unless his Dad drives him. Further, once there he will not be able to leave until the end of the school day.
Thus, "Johnny is at school" ↔ "Johnny was driven to school by his father this morning".
On any other day, this may or may not be true, and thus this is material rather than logical.
(4) ⇔ Logical BiConditional
This is when two statements are connected together in equivalence such that one is true if and only if the other is true, period, regardless of any material conditions.
Example: A is equal to 4 ⇔ A is equal to 2+2. If the first part is true, then the second part is, and if the second part is not, neither is the first. No material changes can make that not the case, so it is a logical bi-conditional and not merely a material bi-conditional.
I tried to make this as clear and precise as possible. I hope it helps.
johrnjohrn t1_ja1wk26 wrote
Reply to comment by Hammurabi42 in ELI5 What is cognitive dissonance? by dreamingonastar1
Way more often than you might even realize.
https://en.m.wikipedia.org/wiki/List_of_dates_predicted_for_apocalyptic_events
RTXEnabledViera t1_ja1vdl1 wrote
Reply to ELI5: (1) = Equal Sign (2) ≡ Equivalence, Identity (3) ↔ Material BiConditional (4) ⇔ Logical BiConditional by 3neth
= is used to signify two numerical quantities are equal. 5=6-1.
≡ is used in lieu of "is the same as", verbally speaking. It denotes identities, i.e. two expressions whose value is equal no matter what the variables are. For example: (a+b)^2 ≡ a^2 + 2ab + b^2 . In most cases, we simply use = instead, but it is important to remember that it's simply an equivalence sign.
Do note that ≡ is more frequently used to denote congruence. Two numbers are congruent modulo a number N if N divides their difference. We write a ≡ b (mod n).
⇔ is "if and only if". P ⇔ Q means Q is true if and only if P is true. The truth table for this condition is such that P ⇔ Q is true in two cases: both P and Q are true, or both P and Q are false. This logical equivalence can also be written, albeit less frequently, as P ≡ Q
↔ is used exactly the same way as ⇔. No difference whatsoever.
Summary: It's better to learn these symbols as part of the required reading, there sometimes is significant overlap between what they are used for.
nerdsonarope t1_ja1u1y9 wrote
Reply to comment by Mammoth-Mud-9609 in ELI5. What happens to ‘criminals’ when the law changes and what they were imprisoned for is no longer illegal? by L0rdTeddingt0n
Another scenario is that the action becomes no longer illegal because a court rules that the criminal law was unconstitutional. In that scenario, a person previously convicted under the now invalid law may be able to apply to the court to be released. However, whether they will succeed is fact dependent and too complicated for an ELI5.
Dorocche t1_ja1tmrp wrote
Reply to comment by EggyRepublic in ELI5. What happens to ‘criminals’ when the law changes and what they were imprisoned for is no longer illegal? by L0rdTeddingt0n
Yes, it's unconstitutional in the US according to Article 1, Section 9
[deleted] t1_ja1t3hp wrote
Reply to ELi5 Why are assholes not festering? by tulaero23
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halborn t1_ja1sm4r wrote
I think it's just that you've recently become more aware of earthquake reporting.
https://en.wikipedia.org/wiki/Lists_of_earthquakes
Itchy_Idea5846 t1_ja1sg5n wrote
The stopping distance on a bicycle doesn’t depend on the break performance as much as the amount of traction available. Breaking too hard will simply lock the wheels, especially in the wet. Disc breaks were introduced for bmx bikes due to improved performance in the mud. On road bikes disc brakes are overkill, add weight, are more difficult during wheel changes and are more complicated to maintain not to mention that the bike frame needs to be modified for them. All in all much more expensive.
[deleted] t1_ja26be9 wrote
Reply to ELi5 Why are assholes not festering? by tulaero23
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