Ephera

joined 5 years ago
[–] Ephera@lemmy.ml 1 points 1 month ago (1 children)

I'm no expert. I probably know too little about the propagation speed of a wave to understand what you mean there.

But here is a scenario where something is faster than light in the given medium: https://en.wikipedia.org/wiki/Cherenkov_radiation

As I understand, neutrons and gravitational waves are also bound by the speed of causality, because they have no mass. And I believe, unlike light, they are unaffected by electromagnetic forces that a material exerts, so they would presumably (always?) travel faster than light in that medium.

I will also say, that from what little I understand of this video: https://www.pbs.org/video/pbs-space-time-speed-light-not-about-light/
...it sounds like trying to determine the speed of causality by measuring it, is kind of backwards. You're at best experimentally confirming what has to be a given under our laws of physics.

[–] Ephera@lemmy.ml 3 points 1 month ago

Alright, yeah, we're talking about a pH value of around 8 for alkaline water. That's also the pH value for eggs, sea water or blood. So, I do imagine our mouth+esophagus can deal with that. At the very least, alkaline water should be food-safe.

[–] Ephera@lemmy.ml 4 points 1 month ago (1 children)

That's kind of why I never feel great about buying video games. The price is pretty much entirely arbitrary.
Like yeah, they did an investment, it is fair that they recuperate that. But the actual price they need to ask of each customer entirely depends on how many customers there are.

And so, they will always start out asking more than what they expect to need to ask of each customer, which just feels like I'm paying too much.
But even when they do put it on sale, there's likely going to be sales in the future where they sell it for even less. It's not like they need to empty out a warehouse or such, where they put up uniquely low prices. So, even when I could get a game on a sale, I'll feel like I could also just wait longer...

[–] Ephera@lemmy.ml 4 points 1 month ago (2 children)

The body doesn't care much about alkaline water, since the stomach acid is so acidic that it will easily overpower it...

[–] Ephera@lemmy.ml 83 points 1 month ago* (last edited 1 month ago) (2 children)

She did the math (with some assumptions), but basically 0.25 mL of lemon juice will turn 500 mL of alkaline water into neutral water:

This is in the video at 13:16.

The reason is that pH is a logarithmic scale. Alkaline water has a pH of about 8, which means it has a tenth of the hydrogen ions compared to neutral water at pH 7.
Lemon juice has a pH value of 2, which is 1,000,000 times more hydrogen ions than there are in pH 8. So, you just need a little bit of lemon juice to increase the hydrogen ions in alkaline water tenfold, which makes it neutral.

[–] Ephera@lemmy.ml 2 points 1 month ago

I doubt the details make for a particularly riveting story, but just to say it: I do think it is more complex than her just not being a good person.

[–] Ephera@lemmy.ml 4 points 1 month ago

Yeah, or their parents argued a lot and they don't want to end up in a relationship where this is the case. This can also mean they're quick to exit a relationship as soon as the first conflicts need to be resolved, because it feels like a sour relationship to them.

[–] Ephera@lemmy.ml 3 points 1 month ago
[–] Ephera@lemmy.ml 16 points 1 month ago (3 children)

Many years ago, I was working together with a girl my age for about 3 months and I had decided pretty early on that I didn't want to impress her, but that I would use the time to work on smalltalk and such. It was a factory job with lots of boring tasks, so there were lots of opportunities to entertain each other.

After 2½ months, I felt like I was doing better than I've ever done in my life. Then she hit me with the sentence: "I don't think any girl would want to go out with you, because you don't talk enough."

So, basically worst case: That's genuinely what she thought.
'Best' case: She was trying to hurt me, but well, she still knew which wound to poke into, so I guess, I wasn't doing that great either way.

[–] Ephera@lemmy.ml 15 points 1 month ago (1 children)
[–] Ephera@lemmy.ml 7 points 1 month ago (1 children)

I'm towards the hyperphantasic side of the spectrum and I've also noticed that it influences quite a lot of things.
Perhaps the biggest factor is that I don't have the same drive to visit places or people. I could travel to a castle to look at it, or I could do so in my mind. I could meet back up with an old friend, but as I think of them, my desire to see them again is satiated. This does mean I'm terrible at maintaining friendships and socializing in general.

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