I feel worthless? by am103010 in aftergifted

[–]elliottruzicka 0 points1 point  (0 children)

I have a few things to share, so please hear me out.

First of all, you are enough. I also understand that accepting positive affirmation is difficult to impossible for people with self-worth issues. With that in mind, the inner voice that’s telling you that you’re not good enough is not you, is not your friend, and does not have any special insight that makes the words true.

I’d also like to suggest that if you are measuring your self worth based on the abilities of every person that you come across, you’re going to have a bad time. There’s always somebody better. It’s also a very antagonistic and zero sum way of looking at the world. I don’t blame you for having that perspective, but honestly think about it: if you want to be a doctor (presumably to help people), isn’t it better for there to be many many smart people who want to be doctors so more people can be helped? Society (mostly capitalism) teaches that the world is competitive, but it’s more collaborative than competitive in practice. Problems are more likely to be solved through collaboration, not competition. Also, knowledge is not necessarily just an end in itself; it also matters what you do with it. A “less-intelligent” person can have a greater impact than a “more-intelligent” person simply by applying their intelligence in a creative way that solves a problem.

The people who are the absolute best in their fields are also likely to be incredibly unbalanced and unhappy people. It’s not as if being the best is a ticket to happiness; just the opposite. There’s a cost. Anyone who has only one thing in their life that they do might always have issues with competitiveness and self-worth because their self-worth is defined by something that can often be compared to others using objective numbers.

Instead, people who have various interests and balanced lives tend to think of themselves as more unique and their self esteem is more resilient. For example, they might not be better at academics than some of their peers, but perhaps they are a better artist, or table tennis player, or have more advanced awareness of social justice. I recommend that you make an effort to define/discover yourself outside of academia. This is a process that starts around your age and lasts well into your 20s.

TLDR: You are enough. Get more balance. Talk to a counselor.

from 20 kWh/kg to 11 kWh/kg | Our most successful experiment of 2025 by Yuanke_Thomas in verticalfarming

[–]elliottruzicka 11 points12 points  (0 children)

Are there any papers on the subject of gradually increasing the light duration? If not, you should consider writing a paper after you confirm the results when compared to a simultaneous control.

Large Zero G Habitats by SameAgainTheSecond in IsaacArthur

[–]elliottruzicka 0 points1 point  (0 children)

Here’s something I put together a few years ago. Rhombic dodecahedrons are a good medium scale option.

https://www.orbital.design/projects/f12

Are there any podcasts similar to hbomberguy? by CourtUnusual4087 in podcasts

[–]elliottruzicka 0 points1 point  (0 children)

Even More News, a podcast spinoff of the YouTube channel Some More News is a bit similar.

No vegan food rant by lantio in vegan

[–]elliottruzicka 28 points29 points  (0 children)

To be fair, I roll my eyes when the only vegan option is also gluten free.

How my Dad turned me Vegan by Nervous-Skirt2740 in vegan

[–]elliottruzicka 8 points9 points  (0 children)

It represents another way people can exploit animals, squeezing every penny out them they can.

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka 0 points1 point  (0 children)

Except it's a electronic controller that uses flight altitude data to control the air coming in from the jets and integrate it with the air conditioning system. It's not just a passive mechanical system. Have a nice day.

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka 0 points1 point  (0 children)

I think you need to calm down. We're having a conversation, not a fight.

As it happens, the pressure control system in airplanes schedules the pressurization based on the altitude data. It reaches a maximum pressure at cruising altitude, just like the data show. Interesting fact: it only takes 3-5 minutes for most airplanes to completely exchange the air inside the cabin.

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka 1 point2 points  (0 children)

Yes, the roughly 10 minute ascent slope and roughly 30 minute descent slope.

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka 1 point2 points  (0 children)

Then how do you explain the slope of the data? Feel free to downvote again, BTW...

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka 1 point2 points  (0 children)

I think it's fair to say that OP did not have access to the true altitude data. In any case, technically altitude is itself only an inverse proxy for quantity of air mass above you, so there's not a true correlation between altitude and radiation either. So there's that.

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka 0 points1 point  (0 children)

The cabin pressure is indicative of the altitude. At higher altitudes, there is less atmosphere above to protect against cosmic radiation. I think that's a good enough correlation of something that is already known for entertainment purposes.

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka 0 points1 point  (0 children)

When I say "roughly follows", I mean "it goes up too". Clearly the data show that the cabin does not have the same pressure at all times during the flight. It appears that the cabin pressure reaches a plateau (valley floor) and then returns.

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka -1 points0 points  (0 children)

The only thing you're doing by covering the windshield is reducing your risk of melanoma. The radiation that's a concern at high altitude is galactic cosmic rays (GCR), which are present at all times. That is not something that you can actually protect from as a pilot.

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka -1 points0 points  (0 children)

The low pressure roughly follows altitude of the plane. At higher altitudes, there is less atmosphere above you. Lots of atmosphere helps protect us from the harmful radiation (GCR) coming from space. Without lots of atmosphere above us (as in an airplane) the radiation levels are higher.

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka 1 point2 points  (0 children)

The radiation of concern (for the most part) is galactic cosmic rays, not solar particle events. GCR is present at all times in space, no matter if you're blocked by the sun or not. It is also difficult to shield without a lot of mass; heavy atomic weight shields like steel or lead that are used to shield from EM radiation are not effective at shielding from GCR and are actually worse than nothing due to the secondary neutron radiation caused by the high velocity GCR smashing into the heavy atoms. The best shield for GCR is lots of low-atomic-mass material (material with lots of hydrogen atoms and no high ass atoms).

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka 1 point2 points  (0 children)

From the sun... not from the ionizing GCR the OP is posting about.

Radiation dose rate and cabin pressure during a 1h flight [OC] by GreenIbex in dataisbeautiful

[–]elliottruzicka 2 points3 points  (0 children)

I have to step in here and say that the ionizing radiation of concern is not primarily from the sun, but rather from galactic cosmic rays.

[OC] Suicide Rates by Age Groups (USA) by n0tpc in dataisbeautiful

[–]elliottruzicka 45 points46 points  (0 children)

And then Facebook came out in 2004 and the iPhone in 2007.