Things You Didn't Know Before

[YosemiteSam]

I would recommend you read what Einstein said about scientific arrogance

FYI, Relativity is Einstein's work and it's (pun intended) relative to this conversation and hence why I said you should take a course in it.

I would also point out that he also won a Nobel prize for his work on the photoelectric effect.

While the photoelectric effect itself isn't the only tool we use to measure cosmic redshift, it is the fundamental physical mechanism behind the detectors (like CCD and CMOS sensors in telescopes) that allow us to trap, count, and measure those ancient, traveling photons.

Are you anti-science or a flat-earther? Moon landing denier?

 

[gtb1943]

FYI, Relativity is Einstein's work and it's (pun intended) relative to this conversation and hence why I said you should take a course in it.

I would also point out that he also won a Nobel prize for his work on the photoelectric effect.

While the photoelectric effect itself isn't the only tool we use to measure cosmic redshift, it is the fundamental physical mechanism behind the detectors (like CCD and CMOS sensors in telescopes) that allow us to trap, count, and measure those ancient, traveling photons.

Are you anti-science or a flat-earther? Moon landing denier?

no, just smarter than you are
enough to know that your posts are full of scientific arrogance unwarranted by science

 

[YosemiteSam]

no, just smarter than you are
enough to know that your posts are full of scientific arrogance unwarranted by science

lol, you mad bro?

What did I ever do to you? Read the thread's name. I happen to be a life-long enthusiast about astrophysics, astronomy, cosmology and quantum mechanics.

I decided to share my passion in this thread and you blew up like a flat earther being told we landed on the moon.

Either that or you also have the passion but fail to grasp what it all means.

Either way, I bid you a flying spaghetti monster fair well and ****

Here is a parting gift. An image I took in 2017 of Messier 45 (M45) aka The Pleiades. It has all kinds of photons recorded in many different levels of energy!

 

[gtb1943]

lol, you mad bro?

What did I ever do to you? Read the thread's name. I happen to be a life-long enthusiast about astrophysics, astronomy, cosmology and quantum mechanics.

I decided to share my passion in this thread and you blew up like a flat earther being told we landed on the moon.

Either that or you also have the passion but fail to grasp what it all means.

Either way, I bid you a flying spaghetti monster fair well and ****

Here is a parting gift. An image I took in 2017 of Messier 45 (M45) aka The Pleiades. It has all kinds of photons recorded in many different levels of energy!

I like poking over inflated egos like baloons

 

[Runwildboys]

I like poking over inflated egos like baloons

I gotta say: If you think you have that effect, who's got the overinflated ego? Seriously guy, you're very contrarian, and it often comes off as someone who thinks he's smarter than everyone else.

BTW, you misspelled "balloons".

 

[nobody]

I gotta say: If you think you have that effect, who's got the overinflated ego? Seriously guy, you're very contrarian, and it often comes off as someone who thinks he's smarter than everyone else.

BTW, you misspelled "balloons".

What about 99 Luftballons?

 

[gtb1943]

I gotta say: If you think you have that effect, who's got the overinflated ego? Seriously guy, you're very contrarian, and it often comes off as someone who thinks he's smarter than everyone else.

BTW, you misspelled "balloons".

I am a contrarian. Happily so

with a very low tolerance for unwarranted arrogance

 

[rags747]

I am a contrarian. Happily so

with a very low tolerance for unwarranted arrogance

Have you been a contrarian in regards to the stock mkt as well?

 

[shabazz]

What about 99 Luftballons?

"I never knew" that 99 Luftbaloons" literally saved the world form Nuclear annihilation.

I was too focused on Nena's leather pants.

 

[Vtwin]

A question borne of general curiosity. I know very little about astrophysics, astronomy, cosmology and quantum mechanics. I have no hard opinion on life beyond Earth and the potential for it to travel to Earth, if it does exist. I can't simply follow the dogma I've grown up with because I can't shake the fact there is just no way we can know regardless of how much we do know based only on our own perspective as humans on Earth. We don't know what we don't know, so the possibility can't be ruled out, at least to me.

The argument against alien life visiting earth is based on our understanding of the science involved in making that happen and that is the argument that has been used here when this has come up before.

So the question is, with all the recent attention on this topic, from the military videos that were released a few years ago (interesting but not necessarily a smoking gun), to the recent release of classified documents and the buzz that has generated, has the possibility increased in the minds of those of you that previously ruled it out, or is the science as we know it still settled?

My opinion remains, I don't know but anything is possible.

 

[Runwildboys]

A question borne of general curiosity. I know very little about astrophysics, astronomy, cosmology and quantum mechanics. I have no hard opinion on life beyond Earth and the potential for it to travel to Earth, if it does exist. I can't simply follow the dogma I've grown up with because I can't shake the fact there is just no way we can know regardless of how much we do know based only on our own perspective as humans on Earth. We don't know what we don't know, so the possibility can't be ruled out, at least to me.

The argument against alien life visiting earth is based on our understanding of the science involved in making that happen and that is the argument that has been used here when this has come up before.

So the question is, with all the recent attention on this topic, from the military videos that were released a few years ago (interesting but not necessarily a smoking gun), to the recent release of classified documents and the buzz that has generated, has the possibility increased in the minds of those of you that previously ruled it out, or is the science as we know it still settled?

My opinion remains, I don't know but anything is possible.

I don't completely rule out the possibility of aliens visiting us, however, I think it's very unlikely.

First, for them to even know we exist, radio waves and/or evidence of life here (such as might be detected through spectroscopy of the light through our atmosphere) would have to have reached them. We've only been advanced enough for that to happen since around 1900, which means the aforementioned light or radio waves would have only traveled about 125 light years. Even if an alien civilization were to detect us and be interested, and have the ability to travel at light speed, their planet (or ship, or whatever) would have to be within about 60-65 light years from us, in order to receive the information and travel here

Now consider how long it took, since the Big Bang, for life to form here on Earth, then how many mass extinction events took place before intelligent life had the opportunity to come about. Not only do we have the whole "Goldilocks Zone" thing, but we have Jupiter clearing a lot of potential Earth killing asteroids and such. Most of the star systems we've seen don't seem to have that advantage.

There are many other considerations as well, so what I'm saying is that, while I certainly believe there's plenty of life, and much of it intelligent, out there, I doubt there's any close enough and intelligent enough and interested enough to visit us.

Just my opinion.

 

[Vtwin]

I don't completely rule out the possibility of aliens visiting us, however, I think it's very unlikely.

First, for them to even know we exist, radio waves and/or evidence of life here (such as might be detected through spectroscopy of the light through our atmosphere) would have to have reached them. We've only been advanced enough for that to happen since around 1900, which means the aforementioned light or radio waves would have only traveled about 125 light years. Even if an alien civilization were to detect us and be interested, and have the ability to travel at light speed, their planet (or ship, or whatever) would have to be within about 60-65 light years from us, in order to receive the information and travel here

Now consider how long it took, since the Big Bang, for life to form here on Earth, then how many mass extinction events took place before intelligent life had the opportunity to come about. Not only do we have the whole "Goldilocks Zone" thing, but we have Jupiter clearing a lot of potential Earth killing asteroids and such. Most of the star systems we've seen don't seem to have that advantage.

There are many other considerations as well, so what I'm saying is that, while I certainly believe there's plenty of life, and much of it intelligent, out there, I doubt there's any close enough and intelligent enough and interested enough to visit us.

Just my opinion.

I think I buried my question in my too long winded setup.

Does the recent releases of previously classified information have you questioning the science as we understand it?

 

[Runwildboys]

I think I buried my question in my too long winded setup.

Does the recent releases of previously classified information have you questioning the science as we understand it?

No. It has me questioning the information, and interpretations of it

 

[YosemiteSam]

No. It has me questioning the information, and interpretations of it

Same. There is not really anything substantial evidence wise in it and comes off more as conspiracy fodder and I also question the timing of it's release as the only thing it really provided was a distraction.

 

[YosemiteSam]

On a side note, they've finally detected winds from Sagittarius A*. Our supermassive blackhole has been relatively quiet compared to others in other galaxies and we've been blinded by the Milky Way galactic plane, but things. They are a changing!

 

[Runwildboys]

Same. There is not really anything substantial evidence wise in it and comes off more as conspiracy fodder and I also question the timing of it's release as the only thing it really provided was a distraction.

Yyyyyeppppp.

 

[Runwildboys]

On a side note, they've finally detected winds from Sagittarius A*. Our supermassive blackhole has been relatively quiet compared to others in other galaxies and we've been blinded by the Milky Way galactic plane, but things. They are a changing!

Winds? What causes that? The accretion disc? Gravity waves? Magnetic field?

 

[YosemiteSam]

Winds? What causes that? The accretion disc? Gravity waves? Magnetic field?

Yes, it is caused by accretion. Although, don't confuse that paper with accretion disk jets like you see images of. These are more of a powerful wind that is more cone shaped rather than a tight jet shooting out. The jets are usually shaped by a massive magnetic field acting like a focuser. I suspect the level of feeding plays a roll in this as more mass could definitely create larger magnetic fields.

I would guess these are small clouds falling in. They are also tilted at 70 degrees which I can only guess that's due to the direction the gas approached the event horizon.