Don't panic... but our fragile world is drifting away from the Sun

Re: Where's my towel?

No.

Because eventually the sun will expand to meet us!

Actually this was all planned millennia ago

Earth has been secretly plotting to escape from Sol for years, before it blows up and takes us all with it. It's already put down a deposit for its new home in the Pavo constellation. All that's left to do is book the removal lorry and call a taxi.

So, let me get this straight, are you nailing your climate change denying colours to the mast by trying to conflate two entirely different conversations? And do you have some kind of Trumpist problem with main stream media? Do you, for example, prefer a conspiracy hypothesis (theory being too solid a term for the nonsense peddled by the alt-right) to a carefully researched story?

I think what I’m trying to get at is, are you a troll or are you howling at the moon stupid?

Damn MSMedia. With their "theories" about the Earth not being flat and circling the sun!

I would have thought that if the earth is moving away from the sun, it will get cooler so we will need global warming to compensate.

But that's me being a cynic with tongue in cheek....

The sun and the planets were man made?

Why didn't they teach me that at school? Oh wait I remember now, it's because it's b*llocks.

I think you'll find that global warming is in fact real and it's down to our lizard overlords making the planet more hospitable for them.

"Can't wait for the MSMedia to blame this on Man Made Global Warming / Climate Change."

You idiot! Can't you see that global warming is the only thing that can save us from the suns weakening power?

Quick - to the V8's!!!!

(cue Tina Turner....)

Troll harder.

Not the same thing, but somewhat related...

https://arxiv.org/abs/1711.08550

The 'Earth Rocket': a Method for Keeping the Earth in the Habitable Zone

Mark A. Wessels

The Sun is expected to increase its radiant output by about 10% per billion years. The rate at which the radius of the Earth's orbit would need to increase in order to keep the present value of the Sun's radiant flux at the Earth constant is calculated. The mechanical power required to achieve this is also calculated. Remarkably, this is a small fraction (2.3%) of the total solar flux currently intercepted by the Earth. Treating the Earth itself as a rocket, the thrust required to increase the orbit is found, as well as the rate of mass ejection. The Earth has sufficient mass to maintain this rate for several billion years, allowing for the possibility that the Earth could remain habitable to biological life for billions of years into the future.

Ah, here is more like what you want, but from 2008

(see fig.2)

Distant future of the Sun and Earth revisited

Klaus-Peter Schroder, Robert C. Smith

https://arxiv.org/abs/0801.4031

Voyager 2 is about 126AU out from the sun, so when it aims its signals at NASA HQ it only has to point at the sun with a beam which will be 2AU across by the time it gets here. That's just a one-degree angle, but I bet in practice it's a lot wider than that already. So, no, I don't think they'll be spending today hurriedly rewriting the specs for all their planned probe missions. ;-)

Clarity required

Hey Wolfie, when you say you've decided to "go on" YouPorn is that as a star performer, whether single or with others, or merely as a viewer?

Whilst on, i'm also hearing that 2017 was the hottest (well, maybe one of the top three, depending how they fiddle,er adjust it) years on record - all the way back to 1850 can you believe.

Not round here it's not, nowhere near. My garden flaura did not like the latter six months of 2017 at all, the weather is currently shit, and i'm flu'd up.

Yes, i know that local weather, local climate is not the same as Global Warming/Global Change.

Strange isn't it, the experts would have you believe it's all "man made" warming yet very little if anything is said, never mind being done, to address the explosion of the "man" part.

Re: Logical anomaly?

Have we got eyes on Pluto?

Re: 2nd Law of Thermodynamics

It's why I never bother tidying.

Re: Set controls

... fine weather for the concert here this afternoon. I'm standing here in front of the stage,' the reporter lied, 'in the middle of the Rudlit Desert, and with the aid of hyperbinoptic glasses I can just about make out the huge audience cowering there on the horizon all around me. Behind me the speaker stacks rise like a sheer cliff face, and high above me the sun is shining away and doesn't know what's going to hit it. The environmentalists lobby do know what's going to hit it, and they claim that the concert will cause earthquakes, tidal waves, hurricanes irreparable damage to the atmosphere, and all the usual things that environmentalists usually go on about.

But I've just had a report that a representative of Disaster Area met with the environmentalists at lunchtime, and had them all shot, so nothing now lies in the way of ...

Re: The sun is losing mass?

Those particles streaming away include photons and neutrinos. How do you think they are produced?

Re: The sun is losing mass?

E = mc^2 - exactly.

To get some E, you need to sacrifice some m. The mass of the all particles resulting from fusion is somewhat less than that of the inputs to the fusion reaction.

Re: The sun is losing mass?

"And what about all the hydrogen being fused into helium and generating so much heat we can see it glowing 93 million miles away? E = mc^2 and all that?"

Yes I read that recently. Where was it now? Oh, yes, paragraph 3 of the article.

Re: Boldly going

It'd probably be easier to break the moon out of orbit and travel on that.

Re: Boldly going

How long before we break orbit and can go exploring the cosmos from the comfort* of our own planet?

Or city? Maybe it's time to re-read my old copy of Cities in Flight...

Re: Mr. Einstein and Gravitational Radiation

Good point. It turns out that the Earth is losing about 200 joules per second through gravitational radiation, which translates to an orbital decay of about the width of a proton per day.

Re: The long view

" Basically, Gaia juggles the CO2 content to maintain room temperature, and last time round that was achieved by evolving grass"

Not a very effective juggle. Plants remove CO2 to convert to sugars to respire which converts sugar back into CO2. More fixed carbon is recycled by animals eating the plants and by other animals higher up the food chain. The only net removal of carbon from the atmosphere is by saving some of it as a standing crop which is recycled more slowly by death and decay of the plant. A very small proportion gets stored away as fossil forms of carbon.

Grass supports grazing animals very well (note the common origin of grass and graze) and the ungrazed vegetative parts don't live long. Apart from on peat lands trees do a much better job than grass of maintaining a large standing crop per unit area. And even peat can be formed from mosses and sedges as well as grasses.

Re: The long view

WTF? (are you smoking?)

Not going to happen. We will still be here fighting with nuclear weapons over the last peanut butter sandwich when it all comes to an end. Some amongst us want all the toys and as long as they can convince the rest to go without in the name of their greed we are stuck.

Gravity is a myth. The Earth sucks.

Jump out of windows much?

Re: Meanwhile...

Only to the central mass (assuming much larger), the mass of the satellite doesn't matter

Re: Meanwhile...

"The Earth is gaining mass.

I wonder how much that compensates for the Sun's losing mass?"/

Good point. I wonder how mass reaches the sun in the same way?

Re: Expecting

Biggest solar orbit EVER for Earth in my Administration! Whiny liberals said it couldn't be done! Make Earth Great Again!

" The Sun loses about 4 million tonnes a second from fusion "

Clearly this is unsustainable. We need to replace it with renewable energy.