almightySapling

u/almightySapling


r/askscience•

We are taught in 7th grade that mass is conserved. We are later taught that momentum and energy are conserved.

Up to a constant, these are roughly given by m*v^(0), m*v^(1), and m*v^(2), respectively.

Of course, this is not exactly precise. Mass can become energy, kinetic energy can become potential, et cetera.

I know that the latter two of these come from Noether's theorem and symmetries of the universe (resp. spacial and time translation). But I've also heard about violations of various symmetry, though I'm not a physicists so I often don't really understand the details.

So, I have a few questions, hopefully all somewhat related to this introduction and the title question.

Is there

5748




I Need Something Tight

NSFWStraight friend

First some backstory: I'm a gay man in my early thirties. I've known my best friend since 4th grade, he's one year younger than me and he's straight. Let's call him Andy.

Freshman year of high school, I started playing with his dick after he fell asleep. I don't know how long this went on with him unaware, but at some point it became clear that he was faking being asleep and letting me suck his dick.

Young gay me was voracious. Anytime we stayed over at each others, I couldn't wait for bedtime. At one point he asked me to tutor him after school, but without fail every day it was 10-15 minutes of tutoring, then he would "get tired" and take off his belt and take a nap on his couch. I'd swal

1457

r/pascal•

I'm attempting to create a program to do some abstract mathematics, and I'd like to make things nice and as versatile as possible.

In algebra, we call a set of objects a Euclidean domain if it satisfies certain properties: they permit addition, multiplication, something like a "div" and something like a "mod". Using these functions and mathematical properties of Euclidean domain, we can write a perfectly general gcd function.

However, since different Euclidean domains might be represented by different underlying types (ints, floats, arrays, whatever) I need a way to make this generic but I'm running into issues.

My first attempt was to ignore the underlying data type and just use the cl

31

r/tacobell•

A few months ago my 9 year old niece overheard us talking about boycotting Chic-Fil-A for its ownership's problematic donation history. Being the curious child she is, she wanted to know what a boycott was. So we explained it to her.

Last night I'm over for dinner and we are trying to decide what to have. I suggest Taco Bell.

"No dice," replies her mother.

"Why not?" I query.

"Ever since you told her 3 weeks ago that they don't have Nacho Fries, she's boycotting. We haven't had it in like a month. Trust me, I've tried. When they bring Nacho Fries back, we will be allowed to go again."

Gotta bring back them fries, Taco Bell!

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