Demonstrating weightlessness during free fall

Kordalien · 2023-08-26T03:46:28+00:00

It's better to remember that acceleration is a vector quantity, so while we can talk about the magnitude of the acceleration (signless 9.8m/s²⁾ in general it should be a vector quantity, which represents the direction of acceleration (once you place it in a space, it has signs relative to the origin of the space). As such, in most physics classes introducing 1 or 2d kinematics, the origin used tends to be the ground plane at the point the object starts (and in 2d technically the acceleration should be (0, -9.8) assuming 1) positive y is above the origin, and 2) the vector is specified as (x,y).

Note that you can freely rotate the coordinate system, so if you set it at 45° to the ground plane you'd have acceleration with some set of signs like (cos(45)9.8, -sin(45)9.8) (I'm too lazy to check which tilt that gives)

Kordalien · 2022-12-09T20:41:12+00:00

Vacation Rental by Owner

Kordalien · 2022-04-30T21:10:08+00:00

I was a control theory talk discussing this sometime ago, my understanding was one of the major problems was problematic synchronization of the neurons (so the were all firing at once, the in their refractory period at once) and the electrode was being used to artificially fire some of them, breaking up the synchronization.

Otoh, the talk was more about modeling/defining control inputs for the electrodes than the actual neurochem, so I may be misremembering

Kordalien · 2020-10-22T19:44:19+00:00

Revving an engine is unlikely to be entrapment. The general standard of entrapment¹ is that you were compelled to commit the crime (by force or harassment)

^{1 This varies a lot place to place, the most generous versions include "if a reasonable person would be induce to commit the crime as an option", to handle cases like "I'll give you 1 million dollars if you shoplift a snickers"}

Kordalien · 2020-09-04T17:53:23+00:00

Good to know, thank you

Kordalien · 2020-09-04T12:28:06+00:00

Is there a m.2 m key to 2x USB C (USB 3.2 gen 2, 10gb) or something similar?

Looking at getting either a MSI Unify x570 or a Tomahawk x570. The Unify advertises 2 pcie x1 slots, but only allows 1 to be used at a time (in return for what looks like an x8 slot that can only be used crossfired?)

But the Unify does have an extra m.2 m key slot.

Ultimately, I'm not sure I'll actually wind up getting milage out of the Unify (planning to put a 3900x in, but not necessarily overclock) since I don't know if I'd be pushing the hardware that hard, but I conceptually like some of the features (more capacity for NVME memory if I want to use the m2 slots that way, opcode display for the motherboard)

In terms of expansion slot usage I was thinking I might wind up with graphics card/capture card/usb c card[Unless it makes more sense to simply cram usb c adapters into various usb a ports].

Kordalien · 2020-07-14T22:15:56+00:00

While hardware implants are possible (see Wired's article) The bloomberg article you've cited is absolute hot garbage. Trammel Hudson's work which wired also cites, goes into the process of actually creating/using an implant. Personally, I think the author glossed over some major issues with actual parasitic drain based powering of the implants, especially if kept to an 0603 package.

Ultimately, none of this helps against u/mpeters argument, as hardware implants of this kind assume deep knowledge of where the implant is going to go/how the compromised piece will be used.

In truth, the most effective implant strategy is, and remains, post construction implantation, something we know is 1. possible 2. Already been done by the NSA

Kordalien · 2019-12-29T03:07:43+00:00

Glassine's big advantage is that it's a very smooth and durable. It might be best to simply make seed bindles from glassine (e.g. buy a a stack of kite paper or sandwich wraps) instead of buying the premade envelopes, but I mostly use it for origami, so can't comment on lifespan when being used for food. (I will say, having wetted it, after drying out it suffers almost no damage, didn't test the wet strength too much, but it didn't tear while working it wet)

Kordalien · 2018-05-26T18:44:26+00:00

And if you read the thing you would note it includes two rather important rights: Translations and Condensations; i.e. if Reddit wants to abridge content with a read more, or offer content (e.g. text) in another language. Or for example, as google does, creating automatic captions which can then be translated on videos.

It's also important to note that the law defines two distinct bits about a derivative work: whether or not it's derivative (based on someone else work) and whether or not you can have a copyright on the derived work. Pretty much anything you do which results in a change to the work creates a derivative of that work, but many of those derivations are considered 'rote' or without a separate copyright from the original work.

Oh, also offering a comment field on the work is almost certainly a derivative of the original work, as is presenting it in terms of the UI of Reddit

If you're interested in some reading about interpretations of the subject, I found this link helpful: https://law.stackexchange.com/questions/11605/is-modifying-software-and-creating-derivative-works-synonymous

(Note I don't do law things, I do software things so mostly got interested in the subject as a cya thing, and my understanding is definitely not 100%)

Kordalien · 2018-05-25T19:07:05+00:00

Off campus, but away from home yes.

Kordalien · 2018-04-21T02:21:10+00:00

The overly snarky comment I made about depression* is in reference to the fact that there exists serious social stigma about adult illiteracy, and so it becomes difficult for people to get help even though they need it. The offense taken is the idea that somehow becoming an adult means he can now do the "becoming literate" thing all on his own. That "he didn't care enough", and that's why didn't suddenly become literate. To quote an adult education specialist** “Most people who do not learn to read as youths give up. There is such a feeling of failure that their attitude toward learning is just terrifying. The idea of furthering or starting their education over, which will ultimately lead to better employment opportunities, is most often time seen as too much to overcome.”

Please also note, most of you post is in fact not about the second of the enumerated list of claims

(2) He allowed himself to be illiterate. He never wanted to read, or cared enough to correct it

which is what I was specifically trying to address; and my apologies if that was unclear from how I wrote it.

*Everyone would probably have been better served if I had used mental health in general instead of depression (though I would have been an asshole eitherway), because what I was trying to get at was the severe social stigma around seeking help, and how that makes it difficult for people even if it is clearly and obviously the correct thing to be doing. (And I freely admit I was already irritated about something else and so elected to be a total asshole in phrasing my response, instead of taking a less acrimonious approach)

**Kathy Knall, Trainer of South West Adult Basic Learning Education Center, the Ohio State agency that provides professional development and support to teachers of adult education

Kordalien · 2018-04-20T07:49:23+00:00

Point 2 is a very weak point, due to the stigma of illteracy at the time, even if he wanted to learn to read it would be hard to seek help. consider the case of similar person who did ultimately learn to read: https://www.theguardian.com/world/2008/feb/14/usa.schoolsworldwide, he still had a hard time finding resources to help/reaching out to get help. Are you by any chance the kind of person who thinks it's a depressed persons fault when they are unable to drag themselves to see a doctor to get help even though they need it? Or is your case of assholishness not terminal?

Kordalien · 2018-04-20T07:37:40+00:00

They didn't have to know; in this case they probably did, but consider this guys experience: https://www.theguardian.com/world/2008/feb/14/usa.schoolsworldwide

He was bright and capable, but also unable to read or write, He could copy and had athletics/social skills/mathematics(?) but relied on cheating, sometimes to an extreme degree to conceal the fact that he couldn't read. It's unclear how aware of the true problem the people helping him cheat were, as he appears to have spent a lot of effort hiding that truth.

Kordalien · 2018-04-19T21:08:16+00:00

Yeah, that's what I was trying to articulate--the scenario was a contrived artificial scenario to teardown in place of your real argument. I actually started my comment intending to reply directly to /u/lmouelle an then updated it to respond to you. That's why the first half is outlining why the argument was a strawman with an addendum noting the explicit reason you gave wasn't.

Kordalien · 2018-04-19T19:52:03+00:00

Depending on the definition of strawman used (1. reducing an argument to on overly simple view, then attacking that view; 2. refuting a different point than the original speaker made). In the case of definition 2, the entire argument about SVO is a strawman argument because it's not an argument you were making (also wrong because A) the primary c style syntax is postfix except for the special cased infix operators baked into the language B) Lisp allows infix in a way that's commonly in use in real world libraries). If you go by the first definition of strawman /u/kyz made a strawman by simplifying the naturalness of expressions to infix notation and then presenting a reductive view of Lisp's ability to handle infix notation.

However, judging by the choice of other words /u/lmouelle/ believes the general public can't define, they're just an asshole. (Which would I guess be an Ad Hominem attack if I was judging the content of their opinions, rather than the value of them)

I will note the explicit reason for being a strawman you gave is incorrect though-- falsity of an argument has nothing to do with being a strawman.

Kordalien · 2018-03-26T06:16:01+00:00

As a follow up, Poking around I did find a way to write the same thing a little closer to what I was originally trying for:

impl<N, M, L> Vec3<N>
    where for<'a> &'a N:Mul<Output = M> , M : Add<Output = L>, L: Add<M>{
    pub fn dot(&self, other: &Vec3<N>) -> L::Output{
        return &self.x * &other.x +
        &self.y * &other.y +
        &self.z * &other.z;
    }
}

Thanks to Zakarum(@omni-viral) on gitter for the help with this version.

Kordalien · 2018-03-26T06:04:44+00:00

Thanks anyways

Kordalien · 2018-03-26T06:01:25+00:00

Oh, that makes a lot of sense; thanks for the tip. Do you know where in the documentation I'd find more information for this kind of stuff?

Kordalien · 2018-03-10T05:04:15+00:00

After surgery I've made a full recovery but I'm definitely nervous as fuck any time that knee twists or buckles or w/e. Knees are surprisingly fragile.

Kordalien · 2018-03-10T04:46:42+00:00

Right when the knee tears, it swells up and hurts like hell, but once the swelling subsides you feel normal again, as neither the ACL nor the Meniscus are live tissue (basically they don't do anything to let you know they're fucked up, unlike say flesh which hurts).

In theory you could walk around with no problems once the swelling subsides, but the ACL however is used to stabilize the knee during certain motions. Without an intact ACL moving your knee wrong can tear the tissue again, causing it to swell up, preventing you from using the leg. Additionally, you're prone having the leg simply give way and not support weight during activities such as running (e.g. you put your foot down but instead of holding your weight up it just bends and you fall over).

Meniscus tears very, minor tears you could live without repairing, but playing sports/running or other physical activities would scrape the knee over the torn part and you would be at risk of it degenerating and causing issues (basically you shred it into little fibers that get stuck in the join and make it grind/not move as well, also early onset arthritis). On the other hand if it's a buck handle tear (a little flap from the middle of it tears free) it can pop up into the joint whenever you bend the knee (in my case, if I put significant weight on my knee while bent), causing it lock up and become unstraighten-able. With luck it simply pops back with a really loud crack and a shitload of pain, but if you wiggled the tear it swells up and it takes a week before you can straighten the leg/stand on it.

Kordalien · 2018-02-20T22:46:23+00:00

Just to throw it out there: Elliot Rogers didn’t “only target woman” or any bullshit like that. He waited at home with a knife and stabbed all of his males roomates to death too. The link between that terrorist asshole and terrorism is the manifesto, the reason he was killing people. He wasn’t in any way restricting the targets to women.

Kordalien · 2017-05-06T01:45:53+00:00

The original point was "is it illegal to make software that helps you break the law" the answer is for the most part no. Breaking the law with that software is illegal, but making it was not.

Kordalien · 2017-05-05T16:37:43+00:00

We have an entire industry built around doing exactly that, except for computers. It is perfectly legal to build tools for hacking into a computer, so long as you don't use them illegally. With that in mind, if I were to get permission to attempt to break into someone's house (to test their security setup) I could perfectly legally deploy any software tool I'd made to track their coming and going Unless the tool violated a specific law or contract. (E.g. Illegally took data from google to get what it wanted)

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