Random Thoughts 9: Attack of the Vapid Posts

[Ajidica]

I decided to stop by Popeyes for dinner tonight because I've been taking the local bus to work and it goes right past Popeyes. Since they were only doing drive through, I ended up walking through the drivethrough.
Felt like it belonged in Florida at 2 in the morning in a 24 hour drivethrough.

EDIT: Also, forgot to mention, I didn't want a drink because I was walking back to my apartment, but it was cheaper to get it as a combo and the drive through guy didn't want to (or wasn't able to) just not give me the drink. So I ended up getting a bottle of water that I didn't want.
Ah well, another bottle of water to use in my fridge instead of a Britta filter.

 

[Takhisis]

Felt like it belonged in Florida at 2 in the morning in a 24 hour drivethrough.

I need context for this.

 

[amadeus]

How I imagine every episode of Dr. Quinn, Medicine Woman:

quinn: hello i am doctor
bumpkin: no. doctor is boy
quinn: girl can be doctor too
bumpkin: no! only boy

A few moments later...

bumpkin: oof i am sick
quinn: here is help
bumpkin: oh thank you! i guess girl can be doctor too

 

[cardgame]

I have never seen it and I already know for a fact you're 100% on the money

network television is incredibly vapid

 

[Takhisis]

Well, yes, my smother went through a Dr. Quinn phase a thankfully long time ago and about half the entire plot of the series is a series of individual instances of the main character getting across the fact that she is a woman but also a capable person. Which is a bit historical, innit?

 

[Kaitzilla]

I was reading on this forum earlier about evaporating black holes and was wondering if there was another way to blow one up.

In theory, there is no limit to how much kinetic energy an object can have.

Let's say there was a 5kg bowling ball.
It has been accelerated far beyond most other extreme relativistic objects using a % of the total energy in the universe.

Let's call it God's bowling ball.
It is going 99.999999999999999999999...% the speed of light and its kinetic energy is x10^100J

Every speck of dust it hits is a catastrophe for the bowling ball, and the cosmic microwave background radiation it is plowing through is blue shifted up past gamma rays, but the time dilation is so extreme God's bowling ball appears to blast through everything intact, even though it is nigh invisible since its apparent length contracted so much.

Now suppose someone aimed God's bowling ball at the heart of a galaxy's giant black hole.
This black hole has around 10^40 kg.

After the bowling ball entered the event horizon, one would expect the black hole to instantly accelerate to nearly the speed of light causing the Galaxy to fly apart over the next million years as its central anchor left it far behind.

But can a supermassive black hole really couple with something going that fast?
Would not the black hole simply explode?

If God's bowling ball entered the event horizon at an angle, would it really enter a degenerating orbit into the singularity?

The black hole just feels too puny to contain what it just swallowed.

 

[Takhisis]

Wouldn't time be slowed down to a factor that might render the above changes null to the outside world?

 

[aimeeandbeatles]

Oops.

 

[choxorn]

Let's call it God's bowling ball.
It is going 99.999999999999999999999...% the speed of light and its kinetic energy is x10^100J

Fun fact: By energy-mass equivalence, a big concentration of kinetic energy can also create a black hole. An object with that much Kinetic Energy is equivalent to having about 1.11*10^83 extra kg of mass hanging around, which is bigger than the total rest mass of the entire observable universe...

...by over 30 orders of magnitude.

And an object with that much mass would have a Schwarzschild Radius of about 2*10^40 light years. For comparison, the observable universe has a radius of about 4.5*10^10 light years.

Leaving aside that you couldn't possibly put all that energy in the bowling ball in the first place, because that much energy doesn't remotely exist in the entire universe, if you just magically poof it to a giant amount of kinetic energy, you just create a giant, super-speedy black hole. It's not entering Sagittarius A*'s event horizon; Sagittarius A* is entering the bowling ball's event horizon.

(and so is the rest of the universe, for that matter)

 

[Kaitzilla]

Fun fact: By energy-mass equivalence, a big concentration of kinetic energy can also create a black hole.

No it can't
God's bowling ball stays a speedy bowling ball.
https://wtamu.edu/~cbaird/sq/2013/0...gh-to-get-enough-mass-to-become-a-black-hole/

Fun fact: By energy-mass equivalence, a big concentration of kinetic energy can also create a black hole. An object with that much Kinetic Energy is equivalent to having about 1.11*10^83 extra kg of mass hanging around, which is bigger than the total rest mass of the entire observable universe...

...by over 30 orders of magnitude.

Right, God's bowling ball has more energy than if the entire observable universe was turned into energy and used to accelerate the bowling ball.
Unless... there used to be a lot more stuff in the observable universe until God's bowling ball was constructed and sped up.

I still find it inconceivable that a puny black hole can swallow such a thing without even burping.
Whatever strange state of matter everything crushed down inside of it into should be extraordinarily affected by God's bowling ball.

Wouldn't time be slowed down to a factor that might render the above changes null to the outside world?

Perhaps from the point of view of God's bowling ball and the black hole itself.

For us, they should interact at normal speed.
We can observe black holes merging in real time through gravitational waves and there is a beginning, middle, and end to the process in a short amount of time.
https://en.wikipedia.org/wiki/First_observation_of_gravitational_waves

 

[Kyriakos]

Pretty interesting how one can do something, even by doing mostly nothing. Eg I think some people will know of me through the rather meaningless Lovecraft translations, or the Kafka translation, or (most of all) my online lit seminar which is my primary source of income and organized for just that. Last, and possibly also least, some would have read my own book of short stories.
It is curious. One can't really have no effect at all, if one isn't actually dead.

 

[yung.carl.jung]

One can't really have no effect at all, if one isn't actually dead.

Even in death you ironically cannot do nothing, with the rest of your post I fully agree. I think it is pretty beautiful that some of us will end up essentially being fertilizer after our life has come to pass. This is a feature, not a bug. The popular culture equivalent would be the Butterfly-effect, the underlying phenomenon is interconnectedness.

 

[Synobun]

As in life, I'll contribute next to nothing in death.

 

[aimeeandbeatles]

Cleaning out my bookmarks, I found that somebody had replaced userscripts.org with a disco cat.

 

[Kyriakos]

I think it is pretty beautiful that some of us will end up essentially being fertilizer after our life has come to pass.

So, can you get me a pass to the biomechanical immortality clique? I don't want to be those other people ending up as food for the worms.

 

[aimeeandbeatles]

This is beautiful.

 

[choxorn]

No it can't
God's bowling ball stays a speedy bowling ball.
https://wtamu.edu/~cbaird/sq/2013/0...gh-to-get-enough-mass-to-become-a-black-hole/

Yeah, you're right, I'm misremembering. Potential Energy can do that, Kinetic Energy can't.

Right, God's bowling ball has more energy than if the entire observable universe was turned into energy and used to accelerate the bowling ball.
Unless... there used to be a lot more stuff in the observable universe until God's bowling ball was constructed and sped up.

So what, did you put the entire mass-energy of the universe into one bowling ball, other than this one black hole?

 

[Kaitzilla]

So what, did you put the entire mass-energy of the universe into one bowling ball, other than this one black hole?

Precisely.
Perhaps dial it down to 10^78J to make it more realistic.

I'm just curious if the black hole can actually swallow such an outrageous thing.

 

[choxorn]

Well, the thing is, our understanding of the inside of an event horizon doesn't really tell us what happens when it swallows anything, including that outrageously high-energy bowling ball. We just see that it goes in and nothing ever comes back out, because the curvature of space inside the event horizon has no paths going back outside of it, no matter how fast you're going. So yes, the bowling ball never leaves the event horizon once it goes in. As to what happens to all that energy, well, again, hard to say, because we generally don't know what happens to the energy and momentum of stuff that falls into the black hole beyond that there's some region inside it that now has a bunch of energy and momentum- and anything that falls in is going to get accelerated to very high energy and momentum by gravity (not nearly as high as this bowling ball, but still pretty high)

 

[cardgame]

how does something moving faster increase its gravity?

@Kaitzilla and other doubters of the power of black holes - if light and entire suns can get sucked in, surely 5kg of bowling ball is nothing. assume it collides with the solid mass in the center of the black hole still going .99c - so what? that mass is not going to split apart, gravitational force is too strong. nothing would escape. instability? extra gamma/hawking radiation spike maybe? nothing else is possible, surely.