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what contribution do you have to make regarding investments?
Investment
- Thread starter pete01
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guess again.You, now get off my thread (train)
You should direct any further comments on the matter to justine passant.
Come on mate, you know better.You, now get off my thread (train)
Start the week off on the right foot
You would not had thought this thread began with someone asking about investing a few bob for his lad, talk about going off at a tangent!!!
It's Sneaky p. sucking up to the mods
Now I know why I had 150 posts to catch up on
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Open an ISA in his name, put the money in, buy VWRP - start today, the prices are a little soft.
Ey?It's Sneaky p. sucking up to the mods
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Investing can be for each of us to pay for care homes, sure, but
arguing the toss and criticising each other about how the GOVERNMENT should pay for it, is not.
SImple enough?
Don't try investing, you lot, you're too thick!
#488 is where the trollling started.
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Justin has put some great posts onto this thread, what he doesn't know about investing probably isn't worth knowing. How dare you come onto this thread and insult someone who offers his advice and takes time to explain things for anyone who asks him. You have come onto this thread to purely troll and upset people.
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I think it's a good idea to have a thread to discuss all and any matters to do with what we indivdually do with our money for the future. That includes pensions, how tax works etc etc.
Thats all he does.
All my investing is done through the Kennel Club.
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I know you lot are good at making deposits...
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Should you invest in Spacex?
2 Trillion dollar thing. Data centres in space
Power is free from the sun, and it's cold, so cooling is easy.
Elon says.
I think he's fibbing.
Date centres use gigawatts of power. A big one would be a Terawatt.
Solar incident power is of the order of 1kW per square metre. It's a little easier in space because of the exposure and no night. The lack of air makes almost no difference.
So you need a solar collector . Lets assume they're 100% efficient - they're only about 20% really.
1TW is 10^12 W
10^12 / 10^3 square metres
That's 10^9 sq m.
You could use 10 panels 10^4m x 10^4m
That's 10 square panels, ten kilometers on each side.
Origami anyone?
Then there's the cooling.
Yes it's cold in space. 3Kelvin or so.
But the "it" is almost nothing. It's a vacuum!
So there's no stuff to heat up and move away from your data centre carrying the heat.
You can use radiative emission. That sounds good, because , if you remember skule fiziks, it's proportional to the temperature difference to the power 4. Do the names Stefan & Boltzmann ring a bell?
Your chips run at say 50C which is 323K
Then you plug in the constant, which is 5.670367 × 10⁻⁸ W·m⁻²·K⁻⁴
Spot the pesky -8 in there.
It comes out that you need about 1 order of magnitude less for the size of radiator to cool the thing, than you needed to get the energy.
And they're really heavy, compared with solar collectors. You need a couple of thousand square kilometers of the things, all got there by rocket.
Oh, and the data centre itself would be pretty big and heavy. Maybe 100 square kilometers, but they're definitely three dimensional.
Then there's the maintenance problem
and bits of space junk flying about
and the little NVIDIA guy in the shiny black jacket updates his chips every year.
I'll stick to day trading Spacex.
2 Trillion dollar thing. Data centres in space
Power is free from the sun, and it's cold, so cooling is easy.
Elon says.
I think he's fibbing.
Date centres use gigawatts of power. A big one would be a Terawatt.
Solar incident power is of the order of 1kW per square metre. It's a little easier in space because of the exposure and no night. The lack of air makes almost no difference.
So you need a solar collector . Lets assume they're 100% efficient - they're only about 20% really.
1TW is 10^12 W
10^12 / 10^3 square metres
That's 10^9 sq m.
You could use 10 panels 10^4m x 10^4m
That's 10 square panels, ten kilometers on each side.
Origami anyone?
Then there's the cooling.
Yes it's cold in space. 3Kelvin or so.
But the "it" is almost nothing. It's a vacuum!
So there's no stuff to heat up and move away from your data centre carrying the heat.
You can use radiative emission. That sounds good, because , if you remember skule fiziks, it's proportional to the temperature difference to the power 4. Do the names Stefan & Boltzmann ring a bell?
Your chips run at say 50C which is 323K
Then you plug in the constant, which is 5.670367 × 10⁻⁸ W·m⁻²·K⁻⁴
Spot the pesky -8 in there.
It comes out that you need about 1 order of magnitude less for the size of radiator to cool the thing, than you needed to get the energy.
And they're really heavy, compared with solar collectors. You need a couple of thousand square kilometers of the things, all got there by rocket.
Oh, and the data centre itself would be pretty big and heavy. Maybe 100 square kilometers, but they're definitely three dimensional.
Then there's the maintenance problem
and bits of space junk flying about
and the little NVIDIA guy in the shiny black jacket updates his chips every year.
I'll stick to day trading Spacex.
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