Are there any machines that will air condition your car without keeping the engine running?

Is there a device that operates off a second battery and perhaps solar power?

Some jobs require sitting in your car when the weather is hot. Normally you wouldn’t want to keep your engine running to keep the air conditioning going.

There is a solar powered device that helps to remove hot air from your auto while it is parked, but this is insufficient to cool a car while someone is sitting in it.

I’ve seen air conditioning units on top of campers. But, I think those depend on an outside power source. Are there any like that which can run on solar power and a second battery?
How do I look this up in search engines? Any ideas?

how do I solar power my camper site?

I have property in a very rural area with no utilities close by and would like to know how many solar panels,batteries, charge controler, anf power inverter, would be needed to make a stand alone power system that would run my entire camper?

Can antimatter be used to power a rocket?

I was watching a special on the history channel on rockets, and they brought up a very interesting point. Could we use antimatter to make routine trips to deep space and the rest of the solar system? How could we contain the antimatter blast to the point where it wouldnt blow up the entire rocket?
Would it be a poor idea if humans could actually harness antimatter? I mean…would it create a new cold war? 😛

Will Renewable Energy Be a Sufficient Energy Source for the Future?

Hi there.
I have been tasked to write an essay on, and eventually answering, the question “will renewable energy be a sufficient energy source for the future?”. I have some ideas on where to start and things I should write about, but I was curious to know from others some of the important and valid points I should include in my essay, such as arguments for and against the use of renewable energy, types of renewable energy and their pros and cons, the use of non-renewable energy sources and their pros and cons, etc.
I would also like some help on how I should structure the essay, which is an important part I always struggle with. Basically I’m free for help and ideas, so if you have anything to offer – any knowledge on this subject you could give, I’ll happily accept it.

Thank you. 🙂