cynar

joined 2 years ago
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[–] cynar 1 points 2 months ago

No, there's obviously a veteran, paid as little as possible, to put the strings on and stuck a "made in the USA" sticker on! It's creating domestic jobs! (/s)

[–] cynar 11 points 2 months ago (8 children)

Many places make it illegal to allow police to intercede. In most places, the police can intervene if they believe a crime is about to be committed.

There is a huge line between someone who is terminally ill, and wants to die on their own terms, and someone having a mental health crisis. The first should be legal, but still needs support and checking, the 2nd need immediate help.

[–] cynar 1 points 2 months ago

You joke, but this was legitimate concerns raised in many places, when slavery was abolished. It was often phased out slowly to allow businesses to adapt.

It's at least better than nothing, but far from perfect.

[–] cynar 3 points 2 months ago

"No-one is the villan of their own story."

They think they are doing more good than harm. It's fucked up, but it's still helpful to understand how they view the world. It makes it easier to predict and counter them.

To them, it's like you threatening to beat up the local priest, while on the way to a major aid drive, because he parked wrongly. They are stepping into stop you interrupting the Lords work! Of course they will be rewarded for that!

[–] cynar 22 points 2 months ago

That's also just the electrical portion of our mind. There are whole levels of chemical, and chemical potentials at work. Neurones will fire differently depending on the chemical soup around them. Most of our moods are chemically based. E.g. adrenaline and testosterone making us more aggressive.

Our mind also extends out of our heads. Organ transplant recipricants have noted personality changes. Food preferences being the most prevailant.

The neurons only deal with 'fast' thinking. 'slow' thinking is far more complex and distributed.

[–] cynar 16 points 2 months ago

The explosive often wasn't enough to damage a full steam engine. What it could do was terrorise the crew and guards. The ones I heard about didn't have a detonator. The guards had a habit of burning dead rats to get rid of them. Often in the fireplace of the guard shack. The goal was to throw fire and hot metal into the guards gathered around to stay warm.

The other advantage of a rat is that most guards wouldn't look too closely at it. Someone with lumps of coal might have them looked at, if they are caught. They are stealing coal, after all. Someone hunting rats, for food, the other hand? Poor and disgusting, get out of here and take the damn rats! You have an excuse to be there (other than sabotage) and nothing they will want back.

[–] cynar 11 points 2 months ago (1 children)

If your pads are lifting, you're overheating the board.

A couple of tips that can help a lot.

Don't underestimate the importance of flux. Cheap boards often have a lot of crap on the copper. Flux burns this off, allowing for quicker, better joints. Most solders have flux in them, some more than others. Beyond that, you can also buy rosin flux very cheaply. It's amazing for cleaning up particularly bad, or sensitive, components.

Have confidence when heating. Most newbies tend to 'dab'. They are scared to overheat the component or board, and so try to add a little heat at a time. This is actually FAR worse for heat. The heat spreads out into the components and glue, causing problems. Instead, you apply heat once. The iron stays in place until the joint forms. If you back off, you need to wait a few minutes until everything is completely cool to the touch. No tap-tap-taping.

The last point of note is to check your lighting. Most beginners struggle to actually see what they are doing. In low light, our pupils open up, to allow more in. This reduces our depth of field, and makes it harder to focus clearly. You want daylight levels of light on your workpiece. There are several apps that let you measure light levels. You might be shocked at how low it is. Multiple directional lights are the best option. You want it focused to maximise brightness, but multi source to avoid harsh shadows.

You might have figured out most of these, but hopefully, some of it will be of help.

[–] cynar 4 points 2 months ago (1 children)

They came for the trans ~~and I did nothing, because I am not trans ~~ and I fought back where I could. Because fuck that shit, we know there this dance will end otherwise!

[–] cynar 4 points 2 months ago

It works well enough here. It's bigger than a microgram, and smaller than a kilogram. With the numbers we are working with, being within several orders of magnitude would be an impressive answer.

[–] cynar 3 points 2 months ago

The boltzmann brain hypothesis. Given enough time, a spontaneous brain, identical to yours, will form. It will experience for a short period before dying (nothing says it needs to be on a planet, or even in a body).

The weirdness of true infinities.

[–] cynar 5 points 2 months ago

What's screwy is that black holes are only an issue for physics if they are eternal. As matter falls towards the event horizon, time, as measured from outside, goes ever slower. It takes an infinitely lon time to cross the event horizon. Hawking radiation means that it will never actually cross, since the black hole will retreat in a finite time. If you flew towards one, you would apparently skim it, without entering. You would emerge to find the universe long dead and gone however .

It turns black holes from problematic infinity points to really weird knots in spacetime.

[–] cynar 27 points 2 months ago* (last edited 2 months ago) (8 children)

I've not got figures to hand, but it's incredibly slow. They are effectively perfect black body radiators, with their apparent temperature linked to their mass. The bigger they are, the colder they are.

Some back of the envelope calculations.

Right now, they are considerably colder than the cosmic background radiation, and so losses to hawking radiation are overwhelmed by even this. I just did a quick calculation on the milk way supermassive black hole, and it's about 1.5x10^-16 °C. That would work out as around 3x10^-91W/m^2 or around 1x10^-71W. It's about 1x10^13 Joules per gram of matter. So you're looking at 10^84 seconds. The universe is about 4.4x10^16 seconds old, so around 10^68 times the current age of the universe.

To emit 1g will take around 100000000000000000000000000000000000000000000000000000000000000000000 x the age of the current universe. This ignores infalling energy.

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