Recent comments in /f/explainlikeimfive

livehearwish OP t1_iybe4kc wrote

Why are there so many videos of a guy writhing in agony in the grass. Then his side scores a goal and he just gets up and runs to celebrate with his team? Clearly not injured and just pretending to be hurt?

Sure sometimes people get hurt, so they should lay down, but a lot of the time they are just straight up acting…

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hblask t1_iybdxdn wrote

You nailed the reason for why they do it: hoping to get a penalty call.

Presumably the drama is to sell it, maybe they think it makes the call more likely.

I've had the same question about why they don't end it. It makes the sport into a joke in the eyes of many potential fans. It would be very easy to eliminate. When I reffed kids traveling teams, an obvious fake like that was instantly a red card, therefore it almost never happened.

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WeDriftEternal t1_iybdqoe wrote

Its unfortunately simply a successful tactic in the game with little downside.

Getting a penalty, especially one in a prime location or that would result in a penalty kick, is extremely valuable. Huge deal. The 'cost' of being caught faking, is that most fakes aren't caught, and if you get caught its generally not a big deal.

Its unfortunate, but its such a good tactic in the sport that you see it from youth up to the top pinnacle of players.

A short to say, the rules of the game make the benefit of making vastly more than the "loss" in getting caught faking.

Yes, everyone thinks the rule should change.

You didn't ask, but the NBA also has a flopping problem, which they also ignore.

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Seemose t1_iybdk82 wrote

I didn't make any claims at all about how students enroll in a charter school. The claim is that charter schools show success compared to public schools because they enforce academic and behavior standards that regular public schools can't enforce. In the rare situations where charter schools don't do this, they perform no better (and sometimes worse) than regular public schools.

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Irreverent_Pi t1_iybd2ff wrote

Huge disclaimer (and pet peeve): every state has their own definition and requirements for charter schools and there literally is no level of federal consistency. It's important to find out what the laws and requirements are in your state. For example, I teach at a charter school in Oregon. ALL charter schools here are public schools. Publicly funded, not private, not for profit. We can't "pick and choose" only high achieving students. Our rates of students on IEPs are actually above the rest of our district because these students have often fallen through the cracks elsewhere and their parents seek out an alternative. Our class sizes are smaller and we have independence in curriculum choices. We still have to take all the same SBAC assessments that all public schools take.

I don't doubt that there are other places where CS are very different from here, but please stop with the blanket statements that simply don't apply because there is no standard definition.

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thebigger t1_iybcezv wrote

An ice cream machine requires an inner shell to rotate or 'churn' around an outer shell. The space between the inner and the outer shell is filled with a cold substance.

Liquid nitrogen would work well here, but that is a bit expensive, and dangerous for making ice cream, so we use H2O.

Well what kind of H2O should we use?

We could use H2O in a liquid form, and get it perfect. We would need a controlled environment below freezing to achieve the same results. This would cost money, and be more difficult. I imagine this would work as well as using ice, except it would warm up more quickly instead of 'melting' as ice would.

So the solution is to use ice.

Well why wouldn't we add salt to the mix? It isn't to lower the freezing temperature, because we are not interested in that. We are not in an environment which is below freezing. The ice is already melting, but by helping it melt faster, especially within the confines of the mechanics of the machine (i.e. being more gritty) we are therefore transferring more 'coldness' to the inner shell.

I surmise that if you were to add salt to an ice cream machine that was inside a room at, or near absolute zero, that the salt would have no affect at all. Then again, the ice wouldn't either. The inner shell would be cold enough to simply spin around on it's own and create ice cream.

I might be wrong here, but I don't see how the freezing point of water is particularly relevant here. The main point is heat transfer.

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Defleurville t1_iybba9x wrote

Structured programming code can generally be read from any position, in either direction: If you find a train car on a track, you can check what it went through before by following the track towards where it came from.

A Goto works closer to a Starfleet transporter: When you find a train car on the track, it might just have teleported in there from wherever. If there are traces of an ambush a mile up the track, you have no idea if that train car went through it.

Goto is a tool which often allows you to do something easily instead of doing it right.

For example, maybe Goto would make your program work now, but it will make it harder to resolve bugs and if there are later changes they could be much harder to implement.

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