This post and thread gives me (back) so much hope. I always hoped for something like described here. But I never came anywhere close and so I have lost the hope over time. I was thinking in the direction of “I just want someone to share my life with. It will work out to be ok somehow.” But some recent events and post like this give me back the hope to find a the person I really want to share time with. It also brings me the motivation to work on myself, so to be more like I would like to be. Thanks you all.

No, to orbit the earth at an height of let’s say 1000 km you would need a speed of around 7km/s. If you go faster, you don’t follow an circular orbit. Wirh around 11km/s you would be so fast to leave the gravity well of earth. The particles in those colliders are almost moving at the speed of light. To be exact, they move only 3.1m/s slower than the speed of light, so almost 300000km/s. They would fly almost straight and would be barely influenced by the gravity well.

In my opinion this is a bit of a narrow view. It definitely holds true for many Christians. But I think some religions like Buddhism may actually help you find a way without guard rails.

This wasn’t the point as i read, the question was about confidence. And this has little to do with how “pretty” you are. Your confidence is only in your mind. Sure if others think of you as ugly, it’s harder to gain confidence. But I think especially a lot of girls have confidence issues with their appearance despite looking “good”.

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Good description, but I would say even the parallel and seemingly rational analysis can be very one sided. I noticed on myself that in similar situations my “rational” analysis swings in the same direction as my mood. And if it doesn’t, I sometimes do not believe, or more precisely, do not feel it. So it doesn’t really help quite a lot. This doesn’t make it useless, just a side note to not be to harsh on yourself if it doesn’t work.

Another thing which also helps me in such situations, is to remember these are just feelings. Sometimes you just feel worthless or dumb, but this are just your feelings, not you. And just because you feel this way, it doesn’t need to be true. Acknowledge the feeling, but try to still notice it is just a feeling.

When there is only 50% totality, photovoltaic also makes 50% less. You just do not notice it when looking around, because your eyes adjust to the changed brightness. So a photovoltaic produces less for a longer time. What I found, for the 2017 eclipse, was that around 16GW were impacted with at most a reduction of 5GW in one moment.

Yes. One place in space has different temperatures. I would assume even individual particles are not distributed by a Maxwell distribution, so the concept of temperature is hard to apply. The background radiation has one temperature. If you add the sun, however, you already have a problem as the sun radiation is not in thermal equilibrium. So depending on how you look at it, you get different temperatures. The particles have a high energy, so also a high temperature. But they are so rare, that radiation is the dominant mode of heat transfer and determines the temperature of a thermometer placed in space.

I think it is actually the other way around. You can consider the air inside the balloon to have internal energy from the heat. And additionally you have to make room for the balloon in the atmosphere, so you have removed the atmosphere from the volume the balloon takes, which also needs energy. If you consider both you arrive at the concept of enthalpy (H = U + pV), which is very useful for reactions in the atmosphere as pressure is constant. For this example it is not that useful as outside pressure changes when the balloon rises.

Another way to see it, the pressure has no “real” energy. In a ideal gas, the only energy comes from the kinetic or movement energy of the atoms. Each time a gas molecule is hits the balloon envelope it transfers some momentum. The cumulative effect of the constant collisions is the pressure of the gas. If the balloon is now expanding slowly, each collisions also tranfers some energy, in sum building the work the system has to do to the atmosphere. Leading to a decrease in internal, so “real” energy in the balloon. This corresponds to a decrease in temperature.

The stratosphere is heated not by the ground but directly from solar radiation leading to higher power input at the upper layers. So the top is hotter and now convection never starts and you get no cooling of the air when rising.

While I agree in general, one point is a bit to simplified in my opinion

In other words, there are fewer air molecules per cubic foot (volume of air). The molecules are farther apart and can hold less heat energy. Because “heat” is what we say when we mean molecules are moving around.

Less molecules mean less heat, it has nothing to do with the temperature, if you just decrease the density by removing half the molecules, you have the same temperature.

It cools down because it expands adiabatically. Consider a very thin balloon filled with air which is warmer than the surrounding. This now rises up, but as it does, the pressure decreases, causing the balloon to expand. During this expansion, the balloon transfers energy away from itself, because it has to push away air, to make room for expanding in the surrounding. This work cools the air inside the balloon. Assuming the air inside is dry, it would cool around 10 °C per km it rises. Now if you think about it, the balloon just stopped the inside from mixing with the outside. If you look at a large “piece” of air, it does not mix very fast, so you can remove the balloon and just consider what happens with warm air heated from the ground.

Now this does not mean, it has to be cooler when higher up. The same points hold, inside a house, but there it is often warmer when higher.

The best explaination is when looking where the heat comes from and goes too from the air. The atmosphere is mostly heated from the surface of earth, so the bottom and cooled from the upper layers. So naturally it gets hotter where it is heated. The question is now by how much? There are three modes of heat transfer in the atmosphere: radiation, conduction and convection. The first two are very slow. Connection is fast but has limits. Consider the piece of air, if it rises, it cools. So at some place it may be the same temperature as the surrounding air, so it stops rising. This means the convection works only when the air gets cooler by 10 °C/km going up (~6.5°C when the air is moist and precipation happens). So this temperature gradient is observable very often.

Yes, the file itself (so the data and inode) is not gone as long as the handles live on. Only the reference is gone. You canstill recover the file. https://superuser.com/questions/283102/how-to-recover-deleted-file-if-it-is-still-opened-by-some-process#600743

Ja das stimmt, da hab ich aus der Physik kommend zu anwendendunsorient gedacht.
Aber für die Frage ob komplexe zahlen gebraucht werden, reicht es, eine isomorphe alternative zu haben. Die komplexen Zahlen haben auch nicht mehr mit Quantenmechanik zu tun wie die Matrizen, nur sind sie leichter handzuhaben.

Die gesamten 2x2 R Matrizen nicht, aber es gibt eine Untermenge die ein Körper ist und isomorph zu C. Nämlich alle die sich durch Linearkombination der Einheitsmatrix und der Rotationsmatrix um 90° ergeben.
Also a+ib ~ [[a, -b],[b,a]]
https://math.stackexchange.com/questions/1028371/complex-number-isomorphic-to-certain-2-times-2-matrices#2644514

But also learn to feel your feelings by yourself.

I agree completely with this stance

If you need to talk a lot about your feelings, especially the deep stuff, talk to a therapist. That’s not brushing you off, it’s what therapy is for.

While I agree that therapy can help a lot in those situations, I don’t think these talks should be limited to a therapist. I try to be somebody you can come to and talk about deep stuff for my friends. With one friend of mine, I mostly talk about deep feelings. It is great to have somebody like her, it’s a different category than therapy. A therapist shouldn’t give you his opinion and rarely shares similar experiences. Sometimes it’s just nice to have someone to talk to in a more symmetric way. For me it’s almost never a burden to listen to the emotions of people I like. I want to hear the deep stuff.
Sure a friend is not a replacement for therapy, but therapy is also not a replacement for a friend with whom you talk about deep emotions.

This hits me hard. I am a cis male and currently trying to get rid of something like toxic masculinity, but as you say it is deeply rooted.

I acually never strived for the stereotypical man image, I wanted to have an emotional side. Now i know i always just considered “having am emotional side” just as another kind of requirement to be a good man. So i tried listening to others and beeing open myself, talking about emotional things. But only those, that i thougt were accepted. I never talked about my real worries. They always seemed to ridiculous to me. A good emotially healthy man shouldn’t have them or solve them himself. Now it feels pretty dumb in retrospect, but I am no longer letting this feeling stop me from talking about something. In some way I also have the feeling i betrayed other people with a fake personality.

I know this is not the mistake of feminism. I cannot really say what went wrong to land in this position. I do not even know why i tell this now. In some way, I just want to tell my story and hope someone can relate with it. Secondly i want to say, that the following is not obvious for everyone, at least it was not for me: Beeing emotional is not just some requirement for you, it’s also about having an opportunity to get support for your worries.

Dann sind aber die Effekte durch Windräder und Katzen auch nicht vergleichbar, die treffen nämlich sehr unterschiedliche Arten.

Insofern ist der Vergleich mit Hühnern auch nicht schlechter als so.

Ich hab den Hinweis auf diese Studie in Wikipedia gelesen, wonach steht:

Soweit ich mich damit beschäftigt hab ist es nicht so klar wie ein kleines problem es wirklich ist. Deswegen ist es gut wenn weiter an diesen punkten geforscht wird. Ich stimme gern zu, dass das problem wesentlich übertrieben wird in der Gesellschaft. Und dass es den Ausbau der Windkraft nicht verlangsamen darf.

Der Vergleich hinkt. Die unterschiedlichen Ursachen treffen verschiedene Vogelarten deutlich anders. Für gewisse Arten (zb Rotmilan) macht Windkraft derzeit einige Prozent der durch Menschen verursachten Tode aus. Das ist derzeit noch kein großes Problem, wird allerdings die Windkraft hoffentlich stark ausgebaut, so ist es nicht mehr zu vernachlässigen. Damit sollte man sich auch jetzt schon Gedanken machen, wie das Problem verhindert werden kann.

Natürlich heißt dass nicht dass deswegen der Windradausbau stark eingeschränkt werden soll Auch sollte nicht dieser Ursache des Sterbens mehr Aufmerksamkeit geschenkt wird wie den anderen Ursachen, was derzeit passiert. Aber nur die Summe der Vögel zu vergleichen macht meiner Meinung nach wenig Sinn, da diese sehr unterschiedliche Lebensweisen, Häufigkeiten und Gefährdungen haben.

I cannot recommend mindfulness enough, as already suggested by many others in this thread.

I think, you said you are already in therapy? In this case, I would definitely talk with your therapist about this and things you want to adopt beforehand. If you want a simple concrete tip, you could try the “mindfulness coach” by the US department of veteran affairs. I liked it a lot and the apps from there get good privacy recommendations from mozilla.

I am a bit suprised by the many people recommending to just stop giving fucks. Is this what you really want? Or do you just want avoid the emotions of taking control?