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#6491
Originally Posted by Dave999 View Post
When the **** hits the fan. Not only smoke but full blown explosions. When stars collide is when it happens. Atleast that is my assumtion. All the other small rocks. Planets and **** doesn’t count as a collision. Have to be star vs star!

742672750000 days Ey...
Someone else have to take care of this countdown
Well, you only need to continue the countdown until no longer possible and then pass the torch. But on a brighter note, we got about 20cm snow the last two days. Went cross-country skiing all afternoon today. A bit tired now but so much fun!
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endsormeans's Avatar
Posts: 3,141 | Thanked: 8,164 times | Joined on Feb 2013 @ From my Gabriola Island hermitage, near the Edge of the World
#6492
Haven't gotten any snow at our oceanside altitude ...yet...for just going outside to cross country ...
Gotta go up - mountain for that right now...
Been nice and mild winter so far....with an average of 8 to 13 degrees celsius.

and Yup.
8 billion,
2 billion
hell 2 million...
Bloody hell 2000
even 200 years!
I will be surprised if we last the next twenty years...
No wait....make that 2 years....
A catastrophic collision 2 billion years from now ...no humans will be around to see.

Also....
absolutely right about the remote possibility of actual planetary collisions...
It is infinitesimal a chance.

BUT what WILL be catastrophic ....
WILL be the gravitational forces FROM those planetary bodies passing each other ...
Disrupting the natural normal unhindered cyclical movements they do in their solar years...
THAT will be the catastrophic part.
The havoc will definitely be terrible.
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Dave999's Avatar
Posts: 7,075 | Thanked: 9,073 times | Joined on Oct 2009 @ Moon! It's not the East or the West side... it's the Dark Side
#6493
Originally Posted by endsormeans View Post
Haven't gotten any snow at our oceanside altitude ...yet...for just going outside to cross country ...
Gotta go up - mountain for that right now...
Been nice and mild winter so far....with an average of 8 to 13 degrees celsius.

and Yup.
8 billion,
2 billion
hell 2 million...
Bloody hell 2000
even 200 years!
I will be surprised if we last the next twenty years...
No wait....make that 2 years....
A catastrophic collision 2 billion years from now ...no humans will be around to see.

Also....
absolutely right about the remote possibility of actual planetary collisions...
It is infinitesimal a chance.

BUT what WILL be catastrophic ....
WILL be the gravitational forces FROM those planetary bodies passing each other ...
Disrupting the natural normal unhindered cyclical movements they do in their solar years...
THAT will be the catastrophic part.
The havoc will definitely be terrible.
Do we know how much hydrogen we have left in OUR tiny star?

Yes, the sun will eventually burn out. But not for a long, long time. The sun has used up about half of its hydrogen fuel in the last 4.6 billion years, since its birth. It still has enough hydrogen to last about another 5 billion years.

So we have only 5 billion years to go

To bad we couldn’t fast forward 1 billion year. Do you think it would make your self understud with languges of today. I bet we would’t Survive a day year 1000002020
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Last edited by Dave999; 2019-01-14 at 21:18.
 
pichlo's Avatar
Posts: 6,453 | Thanked: 20,983 times | Joined on Sep 2012 @ UK
#6494
Originally Posted by Dave999 View Post
The sun has used up about half of its hydrogen fuel in the last 4.6 billion years, since its birth.
No, it has not. It is a common misconception and an easy mistake to make.

Our sun is a second, if not third generation star. That means the hydrogen it is burning comes from an earlier star that, supposedly, had used up out all its hydrogen and exploded in a supernova. How is that possible?

Easy: the earlier star did not use up all its hydrogen. Only the hydrogen taking part in the nuclear reaction. Which is only a small part in the star's core. The most of it in the stellar body and atmosphere would have remained untouched. The shock of the supernova explosion would have turned some of that to heavier elements but the vast majority remained for the next generation star.

Our sun does not have enough oomph to become a supernova which means it will last longer than its predecessor(s) but it will still not use up all its hydrogen before its candle goes out.
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pichlo's Avatar
Posts: 6,453 | Thanked: 20,983 times | Joined on Sep 2012 @ UK
#6495
Originally Posted by pichlo View Post
Easy: the earlier star did not use up all its hydrogen.
Examples of other things not using up all their fuel:
  • We only use about 20% of the oxygen we breathe in. The air we breathe out is still rich enough in oxygen to give a mouth-to-mouth resuscitation.
  • The feces of all animals including humans are rich in nutrients, as exemplified by the flies and dung beetles feeding on them (or humans using them as fuel). Some animals even eat their own droppings to give them a chance to pass through the system again and extract the nutrients wasted the first time.
  • Only about 1.5% of the uranium used in the greatest terrorist attack of all time (the Hiroshima bomb) was involved in the nuclear reaction, and only about 0.001% (0.6 grams) actually turned into energy. That just gives an idea of how efficient nuclear reactions are. The rest of the uranium was evaporated and scattered in the atmosphere, potentially available for a second or even third generation bomb, the same way hydrogen is reused in stars.
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Русский военный корабль, иди нахуй!
 
Dave999's Avatar
Posts: 7,075 | Thanked: 9,073 times | Joined on Oct 2009 @ Moon! It's not the East or the West side... it's the Dark Side
#6496
So that means we can survive a supernova. Just duck and cover at the right time and place!

Question: how do you know that the assumption/calculation above doesn’t mean the complete set of star quality fuel?
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Do something for the climate today! Anything!

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Posts: 1,873 | Thanked: 4,529 times | Joined on Mar 2010 @ North Potomac MD
#6497
Brexit: Should they stay or should they go?
 
Dave999's Avatar
Posts: 7,075 | Thanked: 9,073 times | Joined on Oct 2009 @ Moon! It's not the East or the West side... it's the Dark Side
#6498
Originally Posted by mscion View Post
Brexit: Should they stay or should they go?
Leave of course. Wasn’t that what the poeple wanted? I think the discussion should be about a wall around the kingdom. And how high.

Boris still in the game?



Where is the bar?
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Do something for the climate today! Anything!

I don't trust poeple without a Nokia n900...

Last edited by Dave999; 2019-01-15 at 20:21.
 
Posts: 1,873 | Thanked: 4,529 times | Joined on Mar 2010 @ North Potomac MD
#6499
Originally Posted by Dave999 View Post
Leave of course. Wasn’t that what the poeple wanted? I think the discussion should be about a wall around the kingdom. And how high.

Boris still in the game?

https://www.sundaypost.com/wp-conten...7a-900x540.jpg

Where is the bar?
I think the British got buyers remorse!
 
Dave999's Avatar
Posts: 7,075 | Thanked: 9,073 times | Joined on Oct 2009 @ Moon! It's not the East or the West side... it's the Dark Side
#6500
Originally Posted by mscion View Post
I think the British got buyers remorse!
What does that mean? You mean they vote leave but really wanted to stay?

Sounds counter-productive to me. Unless they get a new improved deal

No cool devices at CES?

Have to wait for x10 X to see what 2019 will bring to the table with plenty of cams and mem.
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Do something for the climate today! Anything!

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Last edited by Dave999; 2019-01-15 at 22:46.
 
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