Joe Biden is pissing me off thread

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Muse

Lifer
Jul 11, 2001
41,275
10,436
136
Are they really? Don't they have atoms/molecules that shed electrons when absorbing photons? Just guessing here...
Looks like I was right:

Simply put, a solar panel works by allowing photons, or particles of light, to knock electrons free from atoms, generating a flow of electricity. ... (Photovoltaic simply means they convert sunlight into electricity.) Many cells linked together make up a solar panel.
 

Zorba

Lifer
Oct 22, 1999
15,613
11,256
136
No, I was trying to be clever, they're powered by a nuclear reaction some 93,000,000 away, so technically they're nuclear powered
Technically all energy produced on earth is nuclear powered. The only except would be tidal, but the water would be ice if not for the sun, so kind of.
 

pmv

Lifer
May 30, 2008
15,142
10,043
136
No, I was trying to be clever, they're powered by a nuclear reaction some 93,000,000 away, so technically they're nuclear powered


Fusion power, no less.

They say that workable fusion power is 'always 30 years away' - in this case it's 8 minutes away (to pre-empt another extended Q&A - that's the time it takes a photon to get here from the sun...though it takes of the order of 100,000 years to get from the centre of the Sun to its surface! I remember being amazed by that in physics class)
 
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pmv

Lifer
May 30, 2008
15,142
10,043
136
...neutrinos, though. apparently get here almost instantly, so when the Sun goes nova we'll all be almost immediately boiled alive by the neutrino flux, long before the main body of the sun engulfs the planet and destroys it (not sure exactly how long after neutrino-aggeddeon that would happen). We could probably get early warning with a neutrino detector, though there's nothing we could do about it once we realise it's coming. Even duck-and-cover drills won't help.

Typically, Biden and the Democrats have no plan for preparing for this crisis.
 

Meghan54

Lifer
Oct 18, 2009
11,684
5,228
136
...neutrinos, though. apparently get here almost instantly, so when the Sun goes nova we'll all be almost immediately boiled alive by the neutrino flux, long before the main body of the sun engulfs the planet and destroys it (not sure exactly how long after neutrino-aggeddeon that would happen). We could probably get early warning with a neutrino detector, though there's nothing we could do about it once we realise it's coming. Even duck-and-cover drills won't help.

Typically, Biden and the Democrats have no plan for preparing for this crisis.


And the Repubs will try to 2a that problem with predictable results.
 
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Muse

Lifer
Jul 11, 2001
41,275
10,436
136
Bingo. Which is not the same as nuclear power (energy from separating or joining the neutron / proton formation aka the nucleus of an atom).
It was my sarcasm meter pinning, which you missed, which is OK... you didn't know I was a physics major. ;)
 
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Muse

Lifer
Jul 11, 2001
41,275
10,436
136
Fusion power, no less.

They say that workable fusion power is 'always 30 years away' - in this case it's 8 minutes away (to pre-empt another extended Q&A - that's the time it takes a photon to get here from the sun...though it takes of the order of 100,000 years to get from the centre of the Sun to its surface! I remember being amazed by that in physics class)
I don't remember hearing that one. What's the rationale? Photons? The sun's basically all about plasma physics. How do they figure 100,000 years for that?
 

jman19

Lifer
Nov 3, 2000
11,225
664
126
It was my sarcasm meter pinning, which you missed, which is OK... you didn't know I was a physics major. ;)

Yeah if I had known your background probably would not have taken your response seriously :D
 
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jman19

Lifer
Nov 3, 2000
11,225
664
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I don't remember hearing that one. What's the rationale? Photons? The sun's basically all about plasma physics. How do they figure 100,000 years for that?

Believe it has to do with high energy photons collisions - what we end up seeing as visible light takes a long time to escape the sun.
 

eelw

Lifer
Dec 4, 1999
10,405
5,543
136
Fusion power, no less.
though it takes of the order of 100,000 years to get from the centre of the Sun to its surface! I remember being amazed by that in physics class)
Still would like to known how scientists determine this?
 

pmv

Lifer
May 30, 2008
15,142
10,043
136
Still would like to known how scientists determine this?


Just a process of repeated absorption and re-emission.

It's one of those things I only remember enough to think of some terms to google for, it being decades since I sat in a lecture about it. What I mostly took in was that neutrinos don't interact with matter very strongly so they come straight out, hence they'll be the first warning of our imminent doom when bad things start a-brewing in the core of the Sun.


(OK, that says 5000 years, I've seen much larger timescales mentioned elsewhere, maybe that's for larger stars)

Re: Neutrinos - I didn't (till reading this article) realise that the neutrinos themselves would kill us all. They don't interact with matter much, but if the Sun begins to go boom they'll apparently be so many of them we'll all instantly be char-broiled nevertheless. Really makes it all seem a little pointless. Hope I've at least got through my Steam backlog by then.

 
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Muse

Lifer
Jul 11, 2001
41,275
10,436
136
Re: Neutrinos - I didn't (till reading this article) realise that the neutrinos themselves would kill us all. They don't interact with matter much, but if the Sun begins to go boom they'll apparently be so many of them we'll all instantly be char-broiled nevertheless. Really makes it all seem a little pointless. Hope I've at least got through my Steam backlog by then.

For the benefit of anyone not knowing, don't lose any sleep over this, the Sun isn't going to go bananas for 5 billion years.
 
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eelw

Lifer
Dec 4, 1999
10,405
5,543
136
Just a process of repeated absorption and re-emission.

It's one of those things I only remember enough to think of some terms to google for, it being decades since I sat in a lecture about it. What I mostly took in was that neutrinos don't interact with matter very strongly so they come straight out, hence they'll be the first warning of our imminent doom when bad things start a-brewing in the core of the Sun.

Lol based on the article, it's based on assumptions on how it was determined
 

pmv

Lifer
May 30, 2008
15,142
10,043
136
Lol based on the article, it's based on assumptions on how it was determined


Not sure what your point is. Most science involves 'assumptions' of some kind or other. Science involves building models, models involve some assumptions, generally ones based on what we know about the universe. Not sure why the fact that everything - love, politics, art, even video games - is ultimately pointless because everything we leave behind when we're gone is itself all one day going to be obliterated in fiery doom makes you lol. But each to their own.
 

Muse

Lifer
Jul 11, 2001
41,275
10,436
136
Only thing I can think of that Joe's done wrong is failing on promise to introduce anti-gun legislation on Day One. However, fact was that the pandemic had put the kabosh on gun massacres ... until the last week. Now if we can just KILL THE FUCKING FILIBUSTER AND DRAG US OUT OF THE GODDAMN 19TH CENTURY ALREADY!
 
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brandonbull

Diamond Member
May 3, 2005
6,365
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Only thing I can think of that Joe's done wrong is failing on promise to introduce anti-gun legislation on Day One. However, fact was that the pandemic had put the kabosh on gun massacres ... until the last week. Now if we can just KILL THE FUCKING FILIBUSTER AND DRAG US OUT OF THE GODDAMN 19TH CENTURY ALREADY!
Biden did have almost 120 years to help get rid of the filibuster. Biden has no clue what's going on. Confused on vaccination, forgot what he was talking about when speaking about the filibuster, no idea on what's going on with Southern border, bed space, and illegal alien surge.