Seasonality is a characteristic of a time series and refers to periodic and generally regular and predictable changes that occur over a year.
To make it more generic, drop the “over a year” and just refer to the periodic signal over time idea. You can find additional signals by how you bin the data, eg monthly or day of week.
Seasonality specifically refers to periodic signals over the course of a year. Any other interval means it’s not seasonality. You can read that yourself in the definition you quoted.
I do this for a living. Seasonality as a generic term refers to temporally periodic signals but can even be extended to talk about non-temporal aspects of a signal. The same math used in areas like econometrics to remove periodicity in annual data can be applied to multiple domains. The main motivation to removing or isolating periodicity is to allow for investigation into the underlying phenomena, or to allow the investigation of the sources of periodicity independently of other drivers. In every case, though, seasonality is an acceptable term in everything I’ve written, read, and worked on.
Fun fact for anyone reading who doesn’t know: if you’re ever in the room while someone is being defibrilated, make sure you’re not touching them in any way. The electrical shock can stop your heart too!
Nah. Defibrillators use direct current. Unless they are covered in salt water, there is no reason for the electricity to go anywhere other than in a relatively straight line
Electricity doesn’t immediately know where to go. It is true that it will always take the shortest path to ground, as soon as it finds that route. This is extremely simplified.
What? No. Electricity takes all conductive paths through a circuit simultaneously, with a current in inverse proportion to the path resistance. Ground means nothing unless it somehow makes up a part of the circuit - it is neither a “sink” nor “zero” for electricity. It’s just dirt.
Electricity always needs somewhere to go. Generally you can refer to where it goes, as a “Ground” I said “This is extremely simplified” for a reason.
I don’t actually understand what you’re trying to say, all I was saying is that Electricity is indeed going to take all possible paths, until it finds the one with the least resistance, which is what I believe you said just in a different way. You are a part of that circuit for a very miniscule, brief second, upon adding yourself (touch).
A battery (or transformer secondary) has two terminals - neither is “ground”, and electricity will flow between them if a circuit is formed.
Often, one terminal of a battery or transformer is connected to a ground stake, so it’s possible for ground to become part of the circuit. But ground is not any kind of natural destination for electricity. (Other than lightning, which is a result of a charge forming between the earth and the clouds)
it doesn’t “find” the path of least resistance. It takes (flows along) all possible paths simultaneously. If you connect two wires in parallel between the terminals of a battery, one of which is thick (resistance) and one of which is thin (high resistance), current will flow along both.
If you have two resistors in parallel the current doesn’t just flow through one resistor. You will get shocked. That’s why you yell “clear” before juicing them.
I always wondered what they use for ground when they are zapping people. Does it just go to the bed frame and out the ground wire the bed is plugged into?
There is no „ground“ in that sense. For a current to flow, you have to create a connection between the source anode and kathode (e.g. + and - of a battery).
You can think of the defibrillator as a battery with a very small but powerful charge. You close the circle by touching both pads to the body. The current will flow through one pad into the body, through the heart and „restart“ it and from there into the other pad. No current leaves this system (=goes into „ground“), it goes back into the defibrillator where the loop is closed.
Why do you get a shock from touching a power cable then, you ask? Without touching another pole and thereby closing the circle? (Note: power cables are AC but for simplification, above DC example can be applied)
This is because for our power stations, the ground is acting as a pole, the current can flow through the ground back to it and thereby close the loop. Therefore, you can reduce the risk of a shock by using boots with thick rubber soles - the rubber acts as an insulator.
Btw, „ground“ is an often misunderstood term. Voltage is the difference between the electric potential of two points in a system. What is often called ground, is the common reference potential.
As powerlines use the actual ground as reference potential, „ground“ has become the defacto name for that - but it’s just a point of reference and can be of any potential. I could measure a voltage (=difference) between the ground of two different systems
Definitely a high presence of US users and the occassional (western) European among all.
Most of the times they represent themselve through their instance.
But it’s the same as with Reddit: Mentioning a thing without mentioning a country = US.
Ah, my favorite way of trolling when I felt like it. Dispute something and eventually go “Ah, sorry didn’t know you were US specific with this” when I finally learn the revelation.
My guess would be this is one of the few major bots that ramp up its posting during Prime Times. I’ve been trying to use the fediversee for almost a year now and I check post multiple times a day, everyday. The vast, and I mean upwards of 90% or more of the post in my feed are just repost bots from Reddit or news aggregator bots. I’d be surprised if more than 10% of the post generated come from actual humans. I’m sure some of the server owners could give us much more insight on this with post by IP statistics. But my guest regardless is human interaction is pretty low.
Turn off bots in your profile and then ban the two or three bots that aren’t marked as bots and your feed will improve immensely. I forget that there even are bots on this site until someone mentions it in a comment.
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