Naked Science Forum

On the Lighter Side => Famous Scientists, Doctors and Inventors => Topic started by: Yahya on 14/06/2018 14:23:11

Title: Is this a great invention ?
Post by: Yahya on 14/06/2018 14:23:11
Is this a great invention like the dynamo or electrical motor ?
https://www.thenakedscientists.com/forum/index.php?topic=73150.0
being a basic machine , perhaps it should be invented in the 19th or 20th century.
and why not it was invented by da Vinci? da Vinci invented clockwork car with limited energy storage, but this could travel , using a spring for longer distances.
https://en.wikipedia.org/wiki/Leonardo%27s_self-propelled_cart
Title: Re: Is this a great invention ?
Post by: Kryptid on 14/06/2018 17:00:35
I don't see anything revolutionary about it, so I'm going to have to say no.
Title: Re: Is this a great invention ?
Post by: Yahya on 15/06/2018 06:07:44
I don't see anything revolutionary about it.
it  stores energy using mechanical concepts in large amounts that lithium-ion batteries won't store. Being a solution for climate change problem alone makes it revolutionary:
reply#48 https://www.thenakedscientists.com/forum/index.php?topic=73150.msg545195#msg545195
Title: Re: Is this a great invention ?
Post by: Kryptid on 16/06/2018 23:14:05
I don't see anything revolutionary about it.
it  stores energy using mechanical concepts in large amounts that lithium-ion batteries won't store. Being a solution for climate change problem alone makes it revolutionary:
reply#48 https://www.thenakedscientists.com/forum/index.php?topic=73150.msg545195#msg545195

Do you have some math to support this claim? Are you basing this on energy per unit mass, energy per unit volume, energy per dollar or what?
Title: Re: Is this a great invention ?
Post by: Yahya on 17/06/2018 08:53:25
I don't see anything revolutionary about it.
it  stores energy using mechanical concepts in large amounts that lithium-ion batteries won't store. Being a solution for climate change problem alone makes it revolutionary:
reply#48 https://www.thenakedscientists.com/forum/index.php?topic=73150.msg545195#msg545195

Do you have some math to support this claim? Are you basing this on energy per unit mass, energy per unit volume, energy per dollar or what?
all calculations are on the thread https://www.thenakedscientists.com/forum/index.php?topic=73150.0
Title: Re: Is this a great invention ?
Post by: Bored chemist on 17/06/2018 09:39:45
it  stores energy using mechanical concepts in large amounts that lithium-ion batteries won't store.
Please provide figures- preferably for a realistic system that doesn't involve drilling holes a million times bigger than anyone has ever drilled before or anything silly like that.

Lithium ion batteries store something of the order of 200 watt hours per kilogram.
About 700 KJ/Kg

To get that energy storage density by raising a weight against gravity you need to lift it 70km.
That's pretty much lifting it into space.

Please stop wasting time on this daft idea.
There really are better ways of storing energy than lifting weights.
Title: Re: Is this a great invention ?
Post by: Bored chemist on 17/06/2018 09:48:47
why not it was invented by da Vinci?
Because Da Vinci had more sense than you have.
Title: Re: Is this a great invention ?
Post by: Yahya on 17/06/2018 10:54:58
Lithium ion batteries store something of the order of 200 watt hours per kilogram.
About 700 KJ/Kg

To get that energy storage density by raising a weight against gravity you need to lift it 70km.
That's pretty much lifting it into space.
lithium-ion battery won't store energy at grid scale it has its application :mobile phones, laptops or perhaps electrical cars.
Please provide figures- preferably for a realistic system that doesn't involve drilling holes a million times bigger than anyone has ever drilled before or anything silly like that.
then this method is silly because it uses huge lakes:
https://en.wikipedia.org/wiki/Dinorwig_Power_Station
it is grid scale energy storage that why I use deep wells and huge weights and lithium-ion batteries won't work
Title: Re: Is this a great invention ?
Post by: Bored chemist on 17/06/2018 11:03:40
lithium-ion battery won't store energy at grid scale

It already does.
https://www.tesla.com/en_GB/powerwall


Do you really think hauling weights into space will work?
Do you really think that digging huge holes in the ground will work?
Title: Re: Is this a great invention ?
Post by: Yahya on 17/06/2018 11:56:23
lithium-ion battery won't store energy at grid scale

It already does.
https://www.tesla.com/en_GB/powerwall
No It doesn't , yes a car power is 15 KW but no one use a car for 15 hours a day, why there is not power stations run by lithium-ion batteries ?
Title: Re: Is this a great invention ?
Post by: Kryptid on 19/06/2018 21:42:39
all calculations are on the thread https://www.thenakedscientists.com/forum/index.php?topic=73150.0

Where are the calculations that demonstrate an energy density greater than lithium ion batteries? Please quote the exact post, because I cannot find it.
Title: Re: Is this a great invention ?
Post by: Bored chemist on 19/06/2018 21:48:32
lithium-ion battery won't store energy at grid scale

It already does.
https://www.tesla.com/en_GB/powerwall
No It doesn't , yes a car power is 15 KW but no one use a car for 15 hours a day, why there is not power stations run by lithium-ion batteries ?

Learn to read.
The article wasn't about cars.
(Incidentally, a car is more likely to be 150 KW than 15KW)

"why there is not power stations run by lithium-ion batteries ?"
Because they store energy, they don't "create" it.


However there are Lithium batteries used for large scale power storage
https://www.theguardian.com/sustainable-business/2017/sep/15/californias-big-battery-experiment-a-turning-point-for-energy-storage

So your claim is just not true.
Please don't repeat it.
Title: Re: Is this a great invention ?
Post by: Yahya on 07/07/2018 17:22:54
why not it was invented by da Vinci?
Because Da Vinci had more sense than you have.
it is better than Davinci's Car and simple to be built at that time.
Title: Re: Is this a great invention ?
Post by: Yahya on 07/07/2018 17:25:43
all calculations are on the thread https://www.thenakedscientists.com/forum/index.php?topic=73150.0

Where are the calculations that demonstrate an energy density greater than lithium ion batteries? Please quote the exact post, because I cannot find it.
it stores energy in larger amounts that lithium batteries can't doesn't refer to energy density it refers to the failure of lithium-ion batteries storage at grid scale
Title: Re: Is this a great invention ?
Post by: Yahya on 07/07/2018 17:55:19
However there are Lithium batteries used for large scale power storage
https://www.theguardian.com/sustainable-business/2017/sep/15/californias-big-battery-experiment-a-turning-point-for-energy-storage
if they are that successful why "again" there are not power stations powered by lithium-ion batteries " as a storage tool" , you agree that good storing for renewable energy will solve climate change why they are not used for that purpose?
Title: Re: Is this a great invention ?
Post by: Bored chemist on 07/07/2018 18:16:04
However there are Lithium batteries used for large scale power storage
https://www.theguardian.com/sustainable-business/2017/sep/15/californias-big-battery-experiment-a-turning-point-for-energy-storage
if they are that successful why "again" there are not power stations powered by lithium-ion batteries " as a storage tool" , you agree that good storing for renewable energy will solve climate change why they are not used for that purpose?

Do you really not understand that they set up an experimental system to see if it works?
Then they set up the real storage systems (assuming they do get the system to work).

And, because they have not yet done the experiments to show that it is worthwhile, they have not yet built the full scale storage stations.

Title: Re: Is this a great invention ?
Post by: Kryptid on 07/07/2018 20:46:05
it refers to the failure of lithium-ion batteries storage at grid scale

Do you have a citation for this?
Title: Re: Is this a great invention ?
Post by: Yahya on 07/07/2018 21:16:48
it refers to the failure of lithium-ion batteries storage at grid scale

Do you have a citation for this?
https://www.renewableenergyworld.com/ugc/articles/2014/10/will-lithium-ion-work-for-gridscale-storage.html
I quote " they cost too much, they can become a safety hazard and they have a limited lifespan. Utilities and commercial building owners want something that will last twenty years flawlessly."
Title: Re: Is this a great invention ?
Post by: Bored chemist on 07/07/2018 21:32:53
You forgot to quote " “Lithium ion can be a 20 year asset,” said Bud Collins, CEO of NEC Energy " and "Lithium cobalt batteries are the ones subject to thermal runaway reactions. Lithium phosphate batteries don’t have that problem.".
And perhaps more tellingly
"PG&E had some good news, and bad news about the future of storage. It has been using a 2-megawatt storage system to provide frequency regulation and then tracks the revenue and costs it incurs in selling power as well as performing frequency regulation. The system runs about six hours a day, from 11 a.m. to 5 p.m.
It basically breaks even. In September, the system generated a whopping $318."..
So, even though we know you can actually do this- because people are doing it- you still say it's impossible.

In the mean time you plan to haul a battleship sized weight up and down the biggest hole the world has ever made.

Face it; your idea is interesting, but not good, never mind "great".


Title: Re: Is this a great invention ?
Post by: alancalverd on 08/07/2018 00:01:15
The idea would be slightly less ridiculous if the falling weight was actually an electric train with a reversible motor/dynamo drive, but the numbers remain unconvincing.
Title: Re: Is this a great invention ?
Post by: Yahya on 09/07/2018 16:56:47
I don't see anything revolutionary about it, so I'm going to have to say no.
Then you evaluated the idea to have a decision  , according to your evaluation does it solve climate change problem? if it solves climate change problem then why it is not great ?
Title: Re: Is this a great invention ?
Post by: Kryptid on 09/07/2018 19:54:03
I don't see anything revolutionary about it, so I'm going to have to say no.
Then you evaluated the idea to have a decision  , according to your evaluation does it solve climate change problem?

No.
Title: Re: Is this a great invention ?
Post by: Yahya on 12/07/2018 18:53:16
I don't see anything revolutionary about it, so I'm going to have to say no.
Then you evaluated the idea to have a decision  , according to your evaluation does it solve climate change problem?


No.
The clockwork tool is unique and genius ,and I might  have found a new method for it. So what about my new method ?
Title: Re: Is this a great invention ?
Post by: Yahya on 13/07/2018 04:48:53
I don't see anything revolutionary about it, so I'm going to have to say no.
Then you evaluated the idea to have a decision  , according to your evaluation does it solve climate change problem?


No.
The clockwork tool is unique and genius ,and I might  have found a new method for it. So what about my new method ?
could I conclude that you agree that this is a great invention?
Title: Re: Is this a great invention ?
Post by: Bored chemist on 13/07/2018 09:32:26
could I conclude that you agree that this is a great invention?
Not if you were sane.
Title: Re: Is this a great invention ?
Post by: Bored chemist on 13/07/2018 09:33:32
I don't see anything revolutionary about it, so I'm going to have to say no.
Then you evaluated the idea to have a decision  , according to your evaluation does it solve climate change problem?


No.
The clockwork tool is unique and genius ,and I might  have found a new method for it. So what about my new method ?
It's not new, it's not genius it's not even particularly helpful.
Title: Re: Is this a great invention ?
Post by: Yahya on 13/07/2018 10:10:36
I don't see anything revolutionary about it, so I'm going to have to say no.
Then you evaluated the idea to have a decision  , according to your evaluation does it solve climate change problem?


No.
The clockwork tool is unique and genius ,and I might  have found a new method for it. So what about my new method ?
It's not new, it's not genius it's not even particularly helpful.

I thought you agreed about the concept
Title: Re: Is this a great invention ?
Post by: Yahya on 13/07/2018 20:46:21
could I conclude that you agree that this is a great invention?
Not if you were sane.

Then what is the reason for the stop of discussion?
Title: Re: Is this a great invention ?
Post by: Kryptid on 13/07/2018 23:04:25
could I conclude that you agree that this is a great invention?

I never said that. Don't put words in my mouth.

Quote
Then what is the reason for the stop of discussion?

Because I'm tired of talking about it. It's a futile discussion.
Title: Re: Is this a great invention ?
Post by: Yahya on 14/07/2018 07:47:25
could I conclude that you agree that this is a great invention?
It's a futile discussion.
No it is not  , you just can't point out any flaws on my new method nor Bored Chemist can
Title: Re: Is this a great invention ?
Post by: Bored chemist on 14/07/2018 12:58:25
Then what is the reason for the stop of discussion?
You asked a question
"Is this a great invention ?"
The question has been answered.- As it happens, the answer is no, it's not a great invention.
There is no point to further discussion.

Please stop wasting time on this daft idea.



I thought you agreed about the concept
How did you think I agreed about it when I said it was daft and told you to stop wasting time on it?
Title: Re: Is this a great invention ?
Post by: Bored chemist on 14/07/2018 13:02:25
No it is not  , you just can't point out any flaws on my new method nor Bored Chemist can

I did point out flaws in it.
That's pretty much lifting it into space.
However there are Lithium batteries used for large scale power storage
https://www.theguardian.com/sustainable-business/2017/sep/15/californias-big-battery-experiment-a-turning-point-for-energy-storage

So your claim is just not true.
Please don't repeat it.
In the mean time you plan to haul a battleship sized weight up and down the biggest hole the world has ever made.
Title: Re: Is this a great invention ?
Post by: Yahya on 14/07/2018 13:39:29
No it is not  , you just can't point out any flaws on my new method nor Bored Chemist can

I did point out flaws in it.
That's pretty much lifting it into space.
However there are Lithium batteries used for large scale power storage
https://www.theguardian.com/sustainable-business/2017/sep/15/californias-big-battery-experiment-a-turning-point-for-energy-storage

So your claim is just not true.
Please don't repeat it.
In the mean time you plan to haul a battleship sized weight up and down the biggest hole the world has ever made.

This was about  using weight but the new method doesn't have flaws you just don't want to admit it.
Title: Re: Is this a great invention ?
Post by: Bored chemist on 14/07/2018 13:59:57
No it is not  , you just can't point out any flaws on my new method nor Bored Chemist can

I did point out flaws in it.
That's pretty much lifting it into space.
However there are Lithium batteries used for large scale power storage
https://www.theguardian.com/sustainable-business/2017/sep/15/californias-big-battery-experiment-a-turning-point-for-energy-storage

So your claim is just not true.
Please don't repeat it.
In the mean time you plan to haul a battleship sized weight up and down the biggest hole the world has ever made.

This was about  using weight but the new method doesn't have flaws you just don't want to admit it.
Do you mean the "new method" that involves making a hydrogen balloon  a thousand time bigger than the world's biggest building and which, when it burned, would release roughly the same energy as the whole world's nuclear arsenal?

I pointed out flaws about that too.
Title: Re: Is this a great invention ?
Post by: Yahya on 14/07/2018 14:07:55
No it is not  , you just can't point out any flaws on my new method nor Bored Chemist can

I did point out flaws in it.
That's pretty much lifting it into space.
However there are Lithium batteries used for large scale power storage
https://www.theguardian.com/sustainable-business/2017/sep/15/californias-big-battery-experiment-a-turning-point-for-energy-storage

So your claim is just not true.
Please don't repeat it.
In the mean time you plan to haul a battleship sized weight up and down the biggest hole the world has ever made.

This was about  using weight but the new method doesn't have flaws you just don't want to admit it.
Do you mean the "new method" that involves making a hydrogen balloon  a thousand time bigger than the world's biggest building and which, when it burned, would release roughly the same energy as the whole world's nuclear arsenal?

I pointed out flaws about that too.
not this too, my new method I mean is using what is similar to a waterwheel and use artificial reservoir water energy as mass times height .
Title: Re: Is this a great invention ?
Post by: Bored chemist on 14/07/2018 16:36:04
So, your new "improved" waterwheel that's not really an improvement on the current versions (of a 2500 year old design).
I pointed out the flaw in that too-you seem to think it's a perpetual motion machine.
Title: Re: Is this a great invention ?
Post by: Yahya on 14/07/2018 17:31:23
So, your new "improved" waterwheel that's not really an improvement on the current versions (of a 2500 year old design).
I pointed out the flaw in that too-you seem to think it's a perpetual motion machine.
it is not a perpetual motion machine, I posted in the original thread.
Title: Re: Is this a great invention ?
Post by: Bored chemist on 14/07/2018 17:54:55
So, your new "improved" waterwheel that's not really an improvement on the current versions (of a 2500 year old design).
I pointed out the flaw in that too-you seem to think it's a perpetual motion machine.
it is not a perpetual motion machine, I posted in the original thread.
You didn't understand that you were claiming a perpetual motion machine, but that doesn't stop it being impossible.
Title: Re: Is this a great invention ?
Post by: Yahya on 15/07/2018 09:24:23
So, your new "improved" waterwheel that's not really an improvement on the current versions (of a 2500 year old design).
I pointed out the flaw in that too-you seem to think it's a perpetual motion machine.
it is not a perpetual motion machine, I posted in the original thread.
You didn't understand that you were claiming a perpetual motion machine, but that doesn't stop it being impossible.
what I am proposing is much higher than your weak understanding
Title: Re: Is this a great invention ?
Post by: Bored chemist on 15/07/2018 09:55:18
what I am proposing is much higher than your weak understanding
One of us has "weak" understanding.
The other has Kryptid and Alan on their side.
How do you get to be so conceited as to think that you are right and everyone else is wrong?

Well, you will learn who has a "weak understanding" of things when you try to get any sort of funding.
Title: Re: Is this a great invention ?
Post by: Yahya on 22/07/2018 10:05:49
One of us has "weak" understanding.
Liar, I invented a new storage tool that shows my high intelligence, that it is better than Davinci's car, it could goes for several kilometers using a spring and is possible to be invented at that time ,  supposing it is not the best storage tool but it stores energy and work. What did you do?
Title: Re: Is this a great invention ?
Post by: Bored chemist on 22/07/2018 10:31:21
What did you do?
I pointed out that you were wrong.
Lithium ion batteries store something of the order of 200 watt hours per kilogram.
About 700 KJ/Kg

To get that energy storage density by raising a weight against gravity you need to lift it 70km.
That's pretty much lifting it into space.
lithium-ion battery won't store energy at grid scale

It already does.
https://www.tesla.com/en_GB/powerwall


No it is not  , you just can't point out any flaws on my new method nor Bored Chemist can

I did point out flaws in it.
That's pretty much lifting it into space.
However there are Lithium batteries used for large scale power storage
https://www.theguardian.com/sustainable-business/2017/sep/15/californias-big-battery-experiment-a-turning-point-for-energy-storage

So your claim is just not true.
Please don't repeat it.
In the mean time you plan to haul a battleship sized weight up and down the biggest hole the world has ever made.

So, your new "improved" waterwheel that's not really an improvement on the current versions (of a 2500 year old design).
I pointed out the flaw in that too-you seem to think it's a perpetual motion machine.
it is not a perpetual motion machine, I posted in the original thread.
You didn't understand that you were claiming a perpetual motion machine, but that doesn't stop it being impossible.
Title: Re: Is this a great invention ?
Post by: Yahya on 22/07/2018 11:46:24
What did you do?
I pointed out that you were wrong.
You didn't, but about what ? about the invention that shows my high intelligence and its functionality ? or about a detailed idea to solve climate change problem ? because it differs solving climate change problem shows ultra high intelligence but the invention shows high intelligence.
Title: Re: Is this a great invention ?
Post by: Bored chemist on 22/07/2018 14:17:58
or about a detailed idea to solve climate change problem
If you know of a detailed plan to address climate change, please let us know.
But a time-wasting project like the huge balloon is
not "detailed" and
not an "idea to solve climate change problem".

You didn't,
I very clearly did.
Sensible people will see that.
Why don't you?

solving climate change problem shows ultra high intelligence
You have not even got close to solving that problem, and so you have not got close to showing high intelligence.

What you have done is deny the facts- which tends to indicate low intelligence.
Title: Re: Is this a great invention ?
Post by: Yahya on 22/07/2018 16:28:13
Your post is weak and escapes from what I said :
Not solving climate change that show my intelligence but the invention itself.

solving climate change problem shows ultra high intelligence but the invention shows high intelligence.

 I invented a new storage tool that shows my high intelligence, that it is better than Davinci's car, it could goes for several kilometers using a spring and is possible to be invented at that time ,  supposing it is not the best storage tool but it stores energy and it works.



So again I invented the above machine what did you do?
One of us has "weak" understanding.
Title: Re: Is this a great invention ?
Post by: Kryptid on 23/07/2018 01:30:56
No it is not  , you just can't point out any flaws on my new method nor Bored Chemist can

That's exactly the futility that I'm talking about. There is no point in discussing this with you because you are not interested in opposing viewpoints or criticism. If you were interested in opposing viewpoints, then you wouldn't have declared your idea to have no flaws. A statement like that closes the door on debate. If you are so sure that your idea will work, then why are you even discussing this with us? You should be talking to people who are capable of actually building this thing instead.
Title: Re: Is this a great invention ?
Post by: Bored chemist on 23/07/2018 02:33:03
Not solving climate change that show my intelligence but the invention itself.
Neither your failure to solve climate change , nor your pretence that you have a good idea shows  intelligence.

Have   you not noticed that nobody has agreed with what you said?
Why do you think that happened?
Title: Re: Is this a great invention ?
Post by: Yahya on 23/07/2018 06:12:57
If you are so sure that your idea will work, then why are you even discussing this with us? You should be talking to people who are capable of actually building this thing instead.
How can I find those people who are capable of actually building it ?
Title: Re: Is this a great invention ?
Post by: Kryptid on 23/07/2018 06:25:50
How can I find those people who are capable of actually building it ?

I'm sure power companies have websites. Maybe you should try E-mailing them.
Title: Re: Is this a great invention ?
Post by: Yahya on 23/07/2018 06:36:33
How can I find those people who are capable of actually building it ?

I'm sure power companies have websites. Maybe you should try E-mailing them.
I think they need a prototype, don't they ?
Title: Re: Is this a great invention ?
Post by: Kryptid on 23/07/2018 06:39:58
I think they need a prototype, don't they ?

Having never done anything like that myself, I wouldn't know. You could probably find someone willing to build it for you if you paid them for it.
Title: Re: Is this a great invention ?
Post by: Yahya on 23/07/2018 06:50:14
I think they need a prototype, don't they ?

Having never done anything like that myself, I wouldn't know. You could probably find someone willing to build it for you if you paid them for it.
I don't have enough money
Title: Re: Is this a great invention ?
Post by: Kryptid on 23/07/2018 06:56:40
I don't have enough money

Then you'll have to learn how to build it yourself. Otherwise, I doubt anything is going to materialize.
Title: Re: Is this a great invention ?
Post by: Colin2B on 23/07/2018 08:49:05
You could build a scale model as a proof of concept. It would need to be fairly large to give a good indication of workings.
Title: Re: Is this a great invention ?
Post by: Yahya on 23/07/2018 09:06:31
I don't have enough money

Then you'll have to learn how to build it yourself. Otherwise, I doubt anything is going to materialize.
still have the problem of funding.
Title: Re: Is this a great invention ?
Post by: Yahya on 23/07/2018 09:11:04
You could build a scale model as a proof of concept. It would need to be fairly large to give a good indication of workings.
I would love to see a small machine that has fan rotates and weight which falls down very slowly to rotate the fan, and works such way for hours.
Title: Re: Is this a great invention ?
Post by: Colin2B on 23/07/2018 11:27:03
I would love to see a small machine that has fan rotates and weight which falls down very slowly to rotate the fan, and works such way for hours.
That sounds buildable at low cost; there’s your opportunity for a proof of concept.
Title: Re: Is this a great invention ?
Post by: Bored chemist on 23/07/2018 11:42:04
How can I find those people who are capable of actually building it ?

I'm sure power companies have websites. Maybe you should try E-mailing them.
I think they need a prototype, don't they ?
If it was actually a good idea they would build a prototype (or get it built).
Why wouldn't they? It's perhaps a few hundred pounds worth of work which s  nothing for a large company, and if you were right, the return on investment would be huge.

Good luck.
Title: Re: Is this a great invention ?
Post by: Bored chemist on 23/07/2018 11:49:24
I would love to see a small machine that has fan rotates and weight which falls down very slowly to rotate the fan, and works such way for hours.
Either it would need to be a very heavy weight / falling a long way, or it's not going to be much use as a fan.
There are examples already
Title: Re: Is this a great invention ?
Post by: Yahya on 25/09/2018 09:08:31
How can I find those people who are capable of actually building it ?

I'm sure power companies have websites. Maybe you should try E-mailing them.
I think they need a prototype, don't they ?
If it was actually a good idea they would build a prototype (or get it built).
Why wouldn't they? It's perhaps a few hundred pounds worth of work which s  nothing for a large company, and if you were right, the return on investment would be huge.

Good luck.
I contacted several companies they asked for a  prototype.But I still can't find resources to build one.
Title: Re: Is this a great invention ?
Post by: syhprum on 25/09/2018 19:01:43
In Maidstone before the war our local 20MW coal fired power station used Lead acid batteries for storage as did many submarines.
Title: Re: Is this a great invention ?
Post by: alancalverd on 05/10/2018 09:30:20
The batteries in power stations were (probably still are, after a major grid failure in the USA) used for maintaining emergency lighting, lifts and telephones, or to shut down reactors safely (remember Chernobyl). The US theory was that there would always be enough grid power available to restart the boilers or reactors, but when parts of the eastern grid literally  collapsed in an ice storm, it took weeks to restart anything.  Power station batteries do not feed the grid - the are too small and too valuable!

Submarines used batteries for silent running at depth - attack, not cruise. Most of the time, diesel subs run just below the surface with an air snorkel, for the same old reason - the energy density of a battery is tiny compared wth a tank of diesel fuel.
Title: Re: Is this a great invention ?
Post by: nekS576 on 25/01/2019 14:52:38
a little bit!