Sasha

joined 9 months ago
[–] [email protected] 2 points 1 day ago

It has changed an enormous amount, this article discusses it

[–] [email protected] 4 points 1 week ago

I think I finally met the love of my life, I don't think I'd want to risk changing anything

[–] [email protected] 4 points 1 week ago

Now I'm wondering, surely someone has already made a language that's designed to read like scripture?

[–] [email protected] 8 points 1 week ago

I'm basically as old as gen z gets, '97. At home we only had dialup well after broadband was the norm, it wasn't really worth using. Instead I learnt what the internet is and how it works at school in computer lab classes.

I was probably 7 or 8 when I made my first web page on our school intranet, they really pushed for us to be tech literate. The coolest part about this is that I grew up so tech literate that I was fully qualified for a job as a developer despite having no formal training. I did one introductory programming class in uni for a free HD and that was basically it.

Yeah, I absolutely understand the insanity of having the internet so available. We had it in my early days on school computers, but the real game changer has been smart phones. Being able to carry that information everywhere is the insane part to me.

Parents were strict, but I got around it really easily. I just used the wifi details my dad used for my Xbox to connect my iPod touch. I grew up on YouTube and podcasts from iTunes.

[–] [email protected] 5 points 2 weeks ago (2 children)

The only thing that keeps me sane while working for capitalists is that I get paid to do a lot of nothing

[–] [email protected] 6 points 2 weeks ago

Oh god the case for a photon is super hard to talk about in any meaningful way, photons "see" every point in their journey as happening at the same instant of time and at the same place, null geodesics are nuts.

But yeah, the underlying mathematics that causes this can (kinda) just be pinned on the normalisation of the four velocity, which I think is what you're describing.

[–] [email protected] 5 points 2 weeks ago

Only a few really dry textbooks I'm afraid, it's a subject that's extremely difficult to explain in lay terms as the mathematics is so complicated.

That said if you're feeling masochistic, Schultz's first course in GR is the most approachable that I know.

[–] [email protected] 4 points 2 weeks ago

It's just meant as a physical analogue to demonstrate some features (namely how the shape of the sheet/gravity affects things that travel on/through it) in a way that people can understand easily.

[–] [email protected] 2 points 2 weeks ago

Variational principle goes brrrrr

[–] [email protected] 27 points 2 weeks ago (8 children)

Oh yes let's talk about my favourite subject ever!

The coolest thing I know of comes from wondering why bent spacetime makes you move at all. The answer is that you always move through time and the bending of spacetime actually turns a bit of time into space and vice versa.

Unnecessary tangentFor a horrible but intuitive explanation of how this works, time is kinda just a direction and bending sorta rotates things so that time looks like it's one of the space directions. Just like turning to the left makes what was your left look like it's straight ahead.

This leads to my favourite saying about black holes, once you enter them you can no more escape falling to the singularity than you can escape tomorrow.

[–] [email protected] 3 points 3 weeks ago

Yeah my current bike is literally just an abandoned bike that I repaired, so I doubt anyone's gonna want to steal it. If I get another E-Bike I'll be a lot more particular about where and when I leave it, and use multiple locks

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