Hey generali I don't agree with your signature

wotsthat

cells wrote: »

Storage wont last for 30 years, the life cycles are very limited especially if you intend to rapid charge or discharge it some times

I know. I'm hypothesising this will improve because stuff usually does.

cells wrote: »

Yes of course people can and do spend money on their hobbies but its a fringe fraction of a fraction.

Take a look at any middle aged bloke cycling around on a carbon fibre bike he's paid a premium for to save a few ounces in weight. I guarantee the vast majority are transporting much more than that around their middle.

Or someone driving a 3.2 litre car when the benefits over a 2 litre are negative to marginal.

Behaving irrationally is more normal than you think.

vivatifosi

cells wrote: »

Yet 100 years on I've never been on a spaceship and the miles I do flying pales in comparison to the miles I drive train and walk....

it isn't a question about technology. No amount of technology can get over the fact that only a finite amount of sunshine hits a square meter of earth and no amount of technology can get over the fact that we live on a rotating planet.

Planes and rockets was a not so simple matter of getting them lighter and their engines more powerful. There was no reason to doubt that that could work.

That's not my point, my point is that 35 years out, nobody can predict what is going to happen. People can make projections and they can hypothesise, but nobody is anywhere near knowing who is right and who is wrong. If anyone knows for certain what is going to happen in 35 years, I want to buy stock in their company.

Mistermeaner

Power aside what about the demand for the raw materials. How does solar address that (other than wood)

cells

vivapr68824759 wrote:

That's not my point, my point is that 35 years out, nobody can predict what is going to happen. People can make projections and they can hypothesise, but nobody is anywhere near knowing who is right and who is wrong. If anyone knows for certain what is going to happen in 35 years, I want to buy stock in their company.

But we can predict more or less what the future holds just saying no one can predict it is just a silly empty statement

here are some pretty concrete predictions for you for the year 2050

The worlds population will be higher
The world will get richer
India will be more or less where china is today
The world will build about +1.5 billion homes by then
The world will be using more FF in 2050 than in 2000

cells

ggb1979 wrote: »

Power aside what about the demand for the raw materials. How does solar address that (other than wood)

Its going to be a terrible problem if battery cars are successful

an average car lasts what 10 years?

Imagine throwing away a 250kg battery pack every 10 years

And the world would need to build and scrap 200 million such cars a year

globalds

This battery might be something like a solution for lots of the present problems.

Vanadium Redox Flow Battery



The cost is at a premium now and would need a large effort to get it down ..But anything is possible

Mistermeaner

Lol

Guess where vanadium comes from.

globalds

ggb1979 wrote: »

Lol

Guess where vanadium comes from.

China ?....

Mistermeaner

Dig deeper my friend.

Also for anyone who is interested may want to look into sulphuric acid and all its uses, then have a look at how sulphuric acid is made.

Or do the same with ammonia.

globalds

Petroleum by products ? Is that the point you are making ?

EDIT

It is probably easier in a discussion based forum to just say things rather than turn it into a kind of quiz ..Slows the flow down ..next time ..If you think you know something ..just pop right up and say it. I am more than happy to be informed of the less well known parts of a subject.