Questions for Cooling the earth?

[SecretOfnumber]

Remembering 10 years ago ish, hearing about a plan in Norway using a mirror in space to reflects light into the North Pole. I am not if they have done it or not but here is the deal, Earth is in space (which is at around Absolute zero) how long it takes for the Earth to freeze if light of sun reduce in reaching the Earth or disappear?

Let’s imagine a controllable Curtin in space switch by human and rotating with sun could this cool down the earth? Is this practical?

The other thing I would like to know is ,

what is going to happen if scientist could make huge amount of smoke in space(outer atmosphere)would it follows the Earth rotation ?for how long?

Cheers,

 

[Simon Bridge]

That's a lot of speculation in there. Not the sort of thing we do here.

There is not enough information to answer the questions with any kind of accuracy.
I can have a go giving you an idea of the size and complexity of the topics you have touched upon.

Earth would freeze "pretty fast" if someone switched the Sun off ... see how fast it takes for winter to come? All that happened is the relative orientation changed. But how fast? You could probably work out how fast to totally freeze the surface by looking up the rate of cooling and realizing that 70% of the surface is water. The core could probably keep going for much longer but there'd be nobody around to care.

More light on the poles would just melt the ice... and store more heat on the surface.

The "curtain" would be where?
Lets say we moved some object so that it stayed between the Earth and the Sun - that would mean putting it at L1 (1.5million kms out) ... from that, and looking up the facts about the Solar system, and using geometry, you should be able to work out how wide the object has to be to block out a certain percentage of sunlight.

See? .. so your questions need more work.
But I also think you need to understand more about the problem you are trying to solve here too.

 

[Huyen401]

Wow, that's a really interesting concept! I remember hearing about that plan as well, but I'm not sure if it was ever put into action. As for your question about how long it would take for the Earth to freeze if the sun's light was reduced or disappeared, it's a bit difficult to say for sure because there are a lot of factors at play. However, I do know that the Earth's atmosphere helps to regulate its temperature, so it wouldn't necessarily freeze immediately. But if the sunlight was significantly reduced or disappeared completely, it would definitely have a major impact on the Earth's temperature.

As for the idea of using a controllable curtain in space to cool down the Earth, it's an interesting concept, but I'm not sure how practical it would be. It would take a lot of resources and technology to create and maintain something like that, and it's possible that it could have unintended consequences on the Earth's climate and ecosystems. Plus, there are other methods of cooling the Earth that are being explored, such as carbon capture and geoengineering, which may be more feasible and less risky.

As for your question about creating a huge amount of smoke in space, I'm not sure if that would follow the Earth's rotation or not. It would likely depend on the density and composition of the smoke, as well as the Earth's rotation speed and the forces acting on the smoke in space. And again, there could be potential consequences and risks involved with such a large-scale action.

Overall, these are really thought-provoking questions and it's interesting to consider the potential solutions for cooling the Earth. It's important for scientists and researchers to continue exploring and studying these ideas, but also to consider the potential impacts and risks involved. Thanks for bringing up these topics for discussion!