Recent comments in /f/explainlikeimfive

bloodalchemy t1_iuipp33 wrote

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.

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mousicle t1_iuipj7r wrote

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.

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drafterman t1_iuipahj wrote

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.

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tollthedead t1_iuipada wrote

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

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TucsonTacos t1_iuioxp9 wrote

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.

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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.

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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'.

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yearofthebows24 t1_iuionfw wrote

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.

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stairway2evan t1_iuiomai wrote

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.

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