Energy Alternatives

Finding Used Cars Has Gotten Easier

Someone who wanted to buy a used car used to have to look through the advertising in the newspaper or go out to dealerships and hope to get lucky and find something suitable. There was no simple way to quickly scan through all of the options to figure out what was out there, and it was easy to miss out on something that would have perfectly met your needs. Thanks to improvements in technology, however, it is easier to find what you want than ever before.

If you are looking for used cars Dallas, for example, you can go to a dealership website and do a search for what they have available. They will often allow you to look through listings with actual photographs of the cars, which is a great way to really ease the process of skimming through and looking for something that roughly meets your needs. It allows you to do your car searching at almost any time of the day or night, so long as you can get to a computer and a high speed Internet connection.

While you are looking for arlington used cars, you will also have the ability on most sites to narrow down your options based on additional criteria. You can specifically say that you only want to see vehicles that lie within a particular price range, for example. You could also limit it to something like manufacturer or model year. You can even combine different details like these to really narrow down your search so that you can avoid wasting time looking at everything on the market if you happen to be anxious to buy a 2011 Ford specifically.

If you know what you want, or at least how much you want to pay, car shopping has never been easier. Dealerships have worked hard to make it easier for people to search their stock of used cars Irving in the hope that they will find something they want and then come in and buy. Take advantage of the opportunity, and you will find it a lot easier to locate the car that you really want without wasting a lot of time or trips to dealerships just to look around.

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A Reader’s Question – Can the human brain be used as a battery or some type of computer software?

Here’s a good question from Cashmoney with an even better answer, enjoy:

Almost everyone who’ve gone to school heard that our brains contain electricity(not just the brain since there is an electrical currents that flows through our body). And most of us did the little experiment using vegetables to power up a light bulb,now think if the human brain was able to do that.(lol our brain or “idea” is uasually and always thought of when we see a lightbulb)Ok back to the point imagine if that when each person dies we preserve their brain and use them as batteries. Think of how it would be a great resource for us instead of polluting the worl by fossil fuels. If that doesn’t work would we be able to download our thoughts onto a computer using our brains as sometime of software. I know it sounds sill but most of us has thought about it to some degree. Is that possible?

Answer: Our brains do not “contain electricity”, they contain chemicals that can produce tiny electrical signals. The brain is able to do this because we eat food, which is digested and turned into fuel for the body. There is no significant amount of electrical power in the human brain. A single brain doesn’t even have enough power in it to run a 60 watt light bulb for a second. Furthermore, our brains work on a different principal than “potato clocks” and such, so there isn’t much comparison between the two.However, there are already systems that use the heat put off by our head to generate a small electrical current which can be used for things such as monitoring brain waves. It also uses solar power as a backup energy supply. This means you don’t have to worry about the batteries ever running down. See:NewScientist: “Brainwave-reading headphones need no batteries” (4/18/’08)http://technology.newscientist.com/channel/tech/dn13738-brainwavereading-headphones-need-no-batteries.htmlAs for “downloading our thoughts onto a computer”, it’s theoretically possible, but incredibly difficult in many respects. First of all, there is currently no way to map the brain without destroying it, so if you don’t get a perfect copy you’ve basically made a brain-damaged copy. Also, the brain is made up of billions of cells, with hundreds of billions of interconnections, all of which are very tiny and delicate, so it is nearly impossible to make an accurate copy. Also, unless you’re destroying a living brain, the brain will probably be dying while the copy is being made, which again means you get a brain-damaged copy. And even if you make an exact copy of the structure, you now have to simulate the chemical processes of these billions of cells. Remember, hormones and other chemicals also regulate brain function. Currently we have no way to simulate all of that in real time, so your simulated copy would be in extreme slow motion. Keep in mind that you’d need to simulate many other things too, such as the eyes, ears, mouth, and throat, if you expect this copy to be able to see, hear, and communicate. I wouldn’t expect technology that could do all that is necessary to make an accurate replica of the human brain for 200 years or more. But eventually it will probably be possible.

Tagged:Biology

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Reader Question – Science Questions…. Earth science eighth grade!?

You guys might also have this question so I’m posting it here with a good answer too. It comes from ‘Pinket’ who asks:

Which tool converts sunlight into electricity? A.photovoltaic cell B.turbine C.battery D.copper tubingWhat is the name of the renewable fuel used in Brazil that helps to conserve petroleum resources? A.soybeans B.aluminum C.liquid paper D.ethanolWhat is the purpose of the three Rs of resource management? A.to remove resources from homes B.to consume increasing amounts of natural resources C.to conserve resources D.to spread out landfill areasWhich is classified as a renewable resource? A.coal B.petroleum C.water D.natural gasWhich is related to air pollution in Mexico City? A.burning fossil fuels B.using biofuels C.using hydropower D.collecting natural gasWhich fossil fuel is responsible for most of the electricity generated in the United States? A.coal B.natural gas C.propane D.petroleumWhich is a cost that comes with using coal as an energy source? A.Coal will stay plentiful in the United States. B.Coal produces less energy than most other energy resources. C.When burned, coal produces pollutants that are released into the air. D.Mining coal improves the environment.Which best describes how solar power is used for heating? A.Heat from the sun causes a turbine to spin. B.The sun warms the ground from which heat flows into a home. C.Special cells store energy from the sun for later use. D.The sun heats water stored within panels containing copper tubes, and then the water flows into a home.a d c a a c b amy quesses….

Answer: “Which tool converts sunlight into electricity?”A. photovoltaic cellGive us your best guesses and we can help where you guess wrong. But we cannot help you cheat.

Tagged:Homework Help

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