PM_ME_VINTAGE_30S

joined 1 year ago

Me but with sleep ๐Ÿ˜ฌ

But most of the possibilities when you do ask suck

[โ€“] PM_ME_VINTAGE_30S@vlemmy.net 7 points 1 year ago* (last edited 1 year ago)

Yep. Now I just know all the shit I failed to do today :\

[โ€“] PM_ME_VINTAGE_30S@vlemmy.net 31 points 1 year ago (1 children)

Would you like to provide those receipts?

[โ€“] PM_ME_VINTAGE_30S@vlemmy.net 4 points 1 year ago (1 children)

inside egg was good but outside is best

Nah

If you are reading this then you are having a poo poo!

Not necessarily. I could be crying.

set up shop on an instance

Don't do that. You probably should have multiple accounts on different instances. If you really need a continuous, single identity, post links to all your usernames in each.

This is why the move from Reddit was so difficult for Redditors: because we put all our eggs into Reddit Inc's basket. All our content is under Reddit's control. This analysis can be applied to any centralized social media service. If your instance shits the bed or bans itself from everyone else, you can move somewhere else. You can start your own in the worst case. It's annoying, but at least there is a real path to move on.

We shouldn't be putting our eggs in any one basket. We shouldn't have been doing it before the Fediverse, and we shouldn't be doing it here either. Your social media access should not be dependent on the goodwill of one person or entity. Eventually, that entity will corrupt.

Also, I'm on vlemmy.net. Right now, they haven't defederated from anyone, and I believe we're still not banned from Beehaw or anyone else. If you really want the whole Fediverse (and you probably don't), make an account on vlemmy or one of the top three instances on this page.

Why don't you have a second account?

Lazy. Don't care if my shit gets fucked. But if you do care if your shit gets fucked, then you shouldn't rely on centralized social media.

Yeah. If the signal changed from 0V to +3V, in any way, at any time, then technically it is AC. However, we might treat it as DC for engineering purposes depending on the context. If the system the DC current is going into is stable and responds quickly enough, we can ignore the effect that "starting" the signal will have. However, most non-trivial circuits have non-trivial dynamics, so we need to make sure that, at a bare minimum, they can be started properly.

Dynamic circuits have, amongst other things, resistances, inductances, and capacitances. Resistors are boring; put in a current I, get back voltage V = IR. Circuits with only resistances are not dynamic. Capacitances and inductances are themselves dynamic elements. For them to exhibit any interesting behavior, the signal (input current or voltage) needs to be changing. Circuits can (but will not necessarily) experience weird behavior when turning on if the power is taken from zero to some voltage too quickly. For example, if a current in an inductor is set from zero to a nonzero constant, you will get a huge (theoretically infinite) spike in voltage. This is because voltage across an inductor is proportional to the rate at which the current signal changes. In the case of a current switched from zero to non-zero, the change from zero to not-zero happens almost instantly, implying a voltage that approaches infinity as the transition becomes steeper. Practically, you get a voltage spike which, when multiplied by current, could generate enough power to blow up whatever you're working on.

I didn't mention this in any of the comments, but real "DC" sources are dirty. Noise is a class of signals that can take on random values at all times. The fact that it can be a different random value at any time implies that noise is a subclass of AC signals. A "pure" source contaminated with noise is colloquially called a "dirty" source.

Dirty power supplies, the effect of turning the power on and off, and other supply imperfections are why if you look at the power sections of electrical circuit diagrams, you will see capacitors from the supply voltage to ground. The current through a capacitor is directly proportional to the rate of change of the voltage across it. A constant voltage would imply a zero rate of change, so no current is going through the capacitor. Colloquially, it shouldn't do anything unless there is a disturbance in the circuit.

Engineers generally expect power supplies to "kinda suck", even those marked as DC. If there are any other dynamic circuits being powered by the supply (and there almost always are; we want our electronics to actually do things for us!), they will be affected and possibly compromised entirely by a dirty power supply.

I couldn't really think of an application where blowing could be treated as a DC signal and talking could be treated as an AC signal. From an electrical engineering position, blowing is a particular subclass of speech signals, for which there is a dearth of literature, all of which hinges on the assumption that speech signals are "AC", e.g. time-varying.

[โ€“] PM_ME_VINTAGE_30S@vlemmy.net 1 points 1 year ago (2 children)

All talking is ~~DC~~ AC, unless you also speak while breathing in.

Slowly varying signals like the waveforms generated by speech in all its forms are still AC signals and need to be treated as such for engineering purposes.

 

So I take fluoxetine for depression and anxiety. I need to take 40mg a day. I have enough 40mg pills to get through the week, but I also have a bunch of 20mg pills. They are both delayed-release capsules. The difference is basically the dose. I can schedule a psychiatrist appointment to get a refill, but that requires a phone call... which means I'm going to put it off as long as possible. That's definitely what smart people do.

I know how math works, e.g. that 40mg = 20mg + 20mg = 2ร—20mg. I'm asking whether two 20mg pills will work like one 40mg pill. If not, would I get more or less medicine, and would I get it in the same time?

More generally, if you have X pills and you need to take kX (k a positive integer) pills, can I take X k times and expect the same result as taking a kX pill?

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