>When this electromagnet is charged, it is magnetic, and when you attach an iron bar across the poles of this electromagnet, it will not lose its energy.

Yes it will. The magnetic field generated by the electric current will collapse, but to whatever extent the iron bar was magnetized there will be some remaining. It can no longer be considered energy, however, it's just a magnet.

>The iron bar is shown by fedora guy (another YouTuber idk what his handle is) to last at least 2 years,

Sure. Permanent magnets are just that, permanent.

>and when an LED is connected across both poles, when the iron bar is pulled off, it both loses its magnetic charge and lights up the LED momentarily.

This is no mystery. That is the basic principle of a generator. Apply a changing magnetic field to a conductor, and electrical current is produced. Since you are removing a permanent magnet from an iron core, you are suddenly lowering the magnetic field from the conductor's vicinity.

If it loses any magnetism(it won't lose all of it), it's due to hysteresis loss. This is to be expected with soft iron which easily gets both magnetized and demagnetized. It's a real headache in transformers.

>There is a discharge of magnetic energy. The energy goes somewhere.

No, there is not. There is a conversion from the kinetic energy(removing the iron bar), into magnetic energy(suddenly changing the flux), into electrical energy(as the field has nothing to sustain it, it is "absorbed" into the conductors), and finally a sheer inefficient loss of potential energy as the fragile magnetizing of the iron bar goes down. That is lost as minor heat in the iron bar.

Nothing remotely interesting has happened in this sequence. Take that horseshoe transformer thing and attach a proper neodymium magnet instead of the iron bar and you'll see quite a bit more power when it's removed.

Or better yet, put the magnet on a rotating thing so that you repeatedly spin it past the horseshoe! Oh wait... That's a normal generator.

>Uhh. There’s a little bit more going on but the guy who had the magnetic flywheel built a castle with it and my grade 9 science teacher did not.

How is a perpetuum mobile related to castles?

>Like, go see what madebyoneman on YouTube is up to. He’s a good guy. Or VinnyStVincent.

I did. Looks like a dude who picks on rocks and sometimes almost makes something net positive. I dunno...

The other guy makes shitty music (???) and levitates a "rock" which is quite clearly magnetite, while obscuring parts of the shot. I mean... You can make anything seem possible with a bad enough video clip.

>Go read the pamphlets that Ed released about magnetic energy, seems to be right up your alley.

Ed who?

>Where do you think Tesla got his ideas from? It’s like he was born with this preconceived notion of electricity but that’s obviously not true.

Err, research and experiments, I would assume? Science?

Probably the best perpetual motion machines we've built are things we've launched into space. Satellites that aren't in low earth orbit are gonna keep going for a really long time. Not to mention probes heading out of the solar system. The odds of them crashing into something is astronomically(heh) low.

>Don’t listen to these guys regurgitate what their science teacher in grade 9 told them about energy.

You know... I'm pretty anti-establishment in general and mildly anarchist. I'm also an engineer. Know what I work with? Electrical motors, hybrids and generators! In semi trucks! Do you have any idea what a legend I'd be if I just did this "one simple trick" to make our semi trucks suddenly have unlimited range and energy? Yeah I'd be legendary and rich as fuck.

You think I wouldn't at least try it of there was any chance physics worked like that? There's a good reason anyone who isn't schizophrenic or mildly dumb sticks to saying it's impossible... That's because it is.

You're basically proposing a mechanism where a rock rolls down a ramp, which pushes a lever that tilts the ramp in the other direction. You just threw magnets into the equation, hoping they'd do something magical.

Electrical resistance. How much current you're conducting when exposed to the tiny voltage in the handles. It's a tiny current, but not too difficult to measure. Way below what you'd feel as an electrical shock.

The absolute most basic thing to understand is that conductors(wires) experiencing a change in magnetic field concentration, will have a voltage induced in them.

In a generator, this is achieved by spinning magnets past coils.

This goes the other way as well; applying a voltage to a conductor will create a force between it any nearby magnetic field.

Many gases become liquids at relatively modest pressures. Air, for example, does not. If you were to pressurize an aerosol can simply with air, the pressure would dissipate rather quickly. But something like Butane turns into a liquid at room temperature at a practical 6-10 atmospheres, and if you try to reduce the pressure it will boil and restore the pressure, until all of it has boiled off. This provides a lot more volume. This boiling action requires heat, just like boiling water does. It will absorb heat, and that's why you may have noticed that aerosol bottles become cold when used a lot.

That's also why many aerosols are very flammable. There are alternatives that aren't flammable, but they're often needlessly expensive. Butane is dirt cheap.

It's kind of funny though. Programming an autopilot for an airplane isn't even a very complicated thing to do. I'm pretty sure that I could make a pretty good one all by myself if I had a few months.

Making one that can be guaranteed to not cause any deaths though? Not touching that with a ten foot pole!

Is the temperature required to induce the Leidenfrost effect different for different materials? Would a very hydrophilic surface have a higher "Leidenfrost threshold"?

Our nerves use electricity among other mechanisms to coordinate very vital things like heart rate, breathing and the entire brain. Throwing in a bunch of external electricity can make any sort of crazy malfunction happen.

>What does Adderall do from the perspective of the person taking it?

It makes tasks feel more rewarding.

>Do their thoughts stop racing?

Not directly, but rather than go back and forth between different trains of thought, it's easier to stick to a single one which is a lot less stressful.

>Do their thoughts still race, but they can be traced for longer?

I feel that racing thoughts are a product of not thinking them to their conclusion. Once concluded, they can be let go easier.

>Do they have the ability to lock onto, and stick with a particular thought rather than their focus drifting all the time?

Yes. It's easy to stay focused on something that feels rewarding and meaningful. Adderall lowers the bar for "rewarding enough" to stick with something.

>What happens when you take Adderall for a few months?

The effects diminish a bit, especially the euphoria which is common in the beginning, but it remains quite effective nonetheless.

Try to get really good at a competitive racing video game. The competition is brutal, and it's very clear just how inept you are compared to the elite.

Planning a turn, and then executing it according to plan in such a way that it is perfectly matched to your vehicle's dynamics, and also adjusting for things that constantly change such as the condition of the vehicle and tires etc and positions of opponents...

All vehicles are very closely matched, there's practically never a case where anyone's won just because they had the best car. Having the best car provides an edge, but driver skill is 90%.

And, in addition to that, especially in F1, the physical strain is insane. I've heard of people getting a "ride-along" for a couple of laps and being absolutely exhausted and sore all over like they just ran a marathon and weight lifted all day. And they're not even the driver...

Yeah... This was only 2 months ago, so still pretty fresh in my mind. If nothing else, it'll be cancer, that's just inevitable I guess. But so unfair at 72. Like, he just retired and started getting to know his grand kids. Such a shitty hand to be dealt, but that's how it is sometimes I guess.

Yeah. Then he died from mesothelioma 2 years after, completely unrelated to rhe pancreatic cancer. Cause fuck that guy in particular I guess :/

Fwiw, it saved my dad from pancreatic cancer. Yeah. He lived. Some shit went wrong though, and pancreatic stuff wreaked havoc on his intestines but he was fine in the end.

So many weird takes. Isn't the simple answer just that you can't kill what's already dead? Our outer skin isn't alive. It's dead armor, basically. If it wasn't, hand sanitizer would hurt like a motherfucker, as it does if you have a cut or scrape. Same with our mucus membranes in our mouth etc. Our living cells are generally not exposed to the outer world because of the infection risk.

Our stomach invests quiet a lot of effort into killing any living cells that enter it. Very little will survive to the gut. Infants are likely to have a pretty weak line of defense.