#basic science notes

[starkissedspirit]

Newton's Laws of Motion

1) "An object will not change its motion unless acted on by an unbalanced force."

A body remains at rest, or in motion at a constant speed in a straight line, except insofar as it is acted upon by a force.

2) "Force equals mass multiplied by acceleration."

The net force on a body is equal to the body's acceleration multiplied by its mass or, equivalently, the rate at which the body's momentum changes with time.

3) "Every action has an equal and opposite reaction"

If two bodies exert forces on each other, these forces have the same magnitude but opposite directions.

[hes-a-plant]

Adhd? Nah nah. It’s a CPU problem, my dude. My processor is super outdated and doesn’t have nearly enough threads to process daily functions. Keeps having to restart tasks, because it doesn’t have enough power to keep track of multiple things at a time. That’s why I get distracted so easily. No other reason.

[cyberstudious]

what's it like studying CS?? im pretty confused if i should choose CS as my major xx

hi there!

first, two "misconceptions" or maybe somewhat surprising things that I think are worth mentioning:

there really isn't that much "math" in the calculus/arithmetic sense*. I mostly remember doing lots of proofs. don't let not being a math wiz stop you from majoring in CS if you like CS

you can get by with surprisingly little programming - yeah you'll have programming assignments, but a degree program will teach you the theory and concepts for the most part (this is where universities will differ on the scale of theory vs. practice, but you'll always get a mix of both and it's important to learn both!)

*: there are some sub-fields where you actually do a Lot of math - machine learning and graphics programming will have you doing a lot of linear algebra, and I'm sure that there are plenty more that I don't remember at the moment. the point is that 1) if you're a bit afraid of math that's fine, you can still thrive in a CS degree but 2) if you love math or are willing to be brave there are a lot of cool things you can do!

I think the best way to get a good sense of what a major is like is to check out a sample degree plan from a university you're considering! here are some of the basic kinds of classes you'd be taking:

basic programming courses: you'll knock these out in your first year - once you know how to code and you have an in-depth understanding of the concepts, you now have a mental framework for the rest of your degree. and also once you learn one programming language, it's pretty easy to pick up another one, and you'll probably work in a handful of different languages throughout your degree.

discrete math/math for computer science courses: more courses that you'll take early on - this is mostly logic and learning to write proofs, and towards the end it just kind of becomes a bunch of semi-related math concepts that are useful in computing & problem solving. oh also I had to take a stats for CS course & a linear algebra course. oh and also calculus but that was mostly a university core requirement thing, I literally never really used it in my CS classes lol

data structures & algorithms: these are the big boys. stacks, queues, linked lists, trees, graphs, sorting algorithms, more complicated algorithms… if you're interviewing for a programming job, they will ask you data structures & algorithms questions. also this is where you learn to write smart, efficient code and solve problems. also this is where you learn which problems are proven to be unsolvable (or at least unsolvable in a reasonable amount of time) so you don't waste your time lol

courses on specific topics: operating systems, Linux/UNIX, circuits, databases, compilers, software engineering/design patterns, automata theory… some of these will be required, and then you'll get to pick some depending on what your interests are! I took cybersecurity-related courses but there really are so many different options!

In general I think CS is a really cool major that you can do a lot with. I realize this was pretty vague, so if you have any more questions feel free to send them my way! also I'm happy to talk more about specific classes/topics or if you just want an answer to "wtf is automata theory" lol

[hiding-under-the-willow]

Compilation of tags (and comments) taken just from my last two months of art. I need to study all of you in some kind of lab to figure out what I'm doing to elicit this kind of response aksnsusjsh

[er-cryptid]

The fear of dead things is called necrophobia.

[us-the-voices-and-more-voices-2]

me: why don’t I remember some things

also me: OH YEAH L TAKES OVER FOR LIKE 87% of EVERYTHING

[illegalcatgirl]

i love hermitcraft but especially old hermitcraft just bc all the random shit that was made "canon" (aka everyones probably forgotten about it but it was real then and therefore you could argue it may still be true)

[absentmoon]

i f i werent twilight sparkle my special talent would be language learning . and i know this

[the-heaminator]

hbggg wanna write America and Australia asking old ppl (Scotland and prussia, china maybe) about the first high explosives which ends in them making fulminating gold and silver in scotlands garage, they get out the aqua reigis it's a fucking blast (ba dum tss).

But I don't have the chemistry knowledge

[thethingything]

wait you guys like perfume too ?? do y'all have a favourite maker - 🪲

oh I only really got into it very recently so I don't know that much about it other than like, really specific stuff about certain compounds because I learnt about them in a different context that led me onto learning about their use in perfume.

in terms of perfumes we like, we normally wear Drakkar Noir which was kind of an impulse purchase because we wanted to start wearing perfume and didn't know what else to get, and I do really like the smell of it, but I think it'd be nice to try some other scents at some point to see which ones we like.

I'd like to learn more about how different scents interact with each other and how perfumes are formulated based on that because I think the science behind it is really cool

[fruitsyrups]

Why does my phone autocorrects besties to beasties 😭 or I guess just. Why is this the first time I've noticed . Surely I must have said besties before ? ?

[noxtivagus]

i remember again n feel better hehe 🥹🤍

[tathrin]

Is there a better feeling in the whole world than your best friend asking you to share/explain world building details about a fandom that you know and love but haven’t really done much with in ages (and frankly have forgotten a lot of the details of oops) that she doesn’t really know, but wants to learn about and maybe more importantly wants to watch you talk about?

[mossmx]

btw I read the reblog tags for the tetris poll and ok I get it T is versatile in game, fair priority

[er-cryptid]

Maniphobia is the fear of going insane.

[asegbolu]

Comprehensive Revision and Examination Guide for Basic Technology JSS 3

Revision and Examination Subject: Basic Technology Class: JSS 3 Term: First Term Week: 15 Age: 12–15 years Topic: Revision and Examination Sub-topic: Comprehensive Review of Key Topics Covered Behavioural Objectives By the end of the lesson, students should be able to: Recall and summarize key concepts learned throughout the term. Answer practice questions covering all the topics…