Alternative Fuel
Our fuel choices have an impact on our environment. In this section, learn about ethanol, the possibility of salt water as car fuel cars, clean diesel and natural gas vehicles.
- Quiz Yourself: Biodiesel Fuels
- Quiz Yourself: Fuel Cell
- 5 Alternative Fuels that Never Made it out of the Lab
- Alternative Fuel
- How Biodiesel Works
- How Fuel Cells Work
- How E85 Ethanol Flex Fuel Works
- How Natural-gas Vehicles Work
- How Algae Biodiesel Works
- Can a car run on nuclear power?
- Could salt water fuel cars?
- Grassoline: can we fuel cars with grass?
- Is ethanol really more eco-friendly than gas?
- How Fuel Cells Work (Video)
- Fuel Cells in Action (Video)
- Better Alternative Fuel than Corn (Video)
- Vegetable-Oil Engine (Video)
- Aquatic Microbes Generate Energy (Video)
Alternate Energy Sources
- Quiz Yourself: Salt Water Fuel
Imagine how convenient it would be if two-thirds of the Earth's surface was covered with a readily available, nonpolluting fuel source. With the discoveries being made in regards to salt water fuel, you may not have to imagine much longer - How Wind Power Works
When the wind blows, particles in the gust of air are moving quickly. And that motion carries kinetic energy, which can be captured and harnessed to create electricity. - How Living Off the Grid Works
No one likes paying bills. But you wouldn't have quite so many if you lived off the grid. How do you create enough energy to ditch public utilities? - How Thin-film Solar Panels Work
You might think of solar panels as large racks of rigid panels on someone's roof, but newer solar cells are more flexible and efficient. - How the Iowa Stored Energy Park Will Work
Wind energy is great, but what happens when there's no breeze? The Iowa Stored Energy Park will store compressed air underground. Can it replace traditional energy sources? - How the MARS Turbine Will Work
If, in a few years, you begin to see scores of blimps floating overhead, don't be alarmed. They're MARS turbines, and they could be an aerial solution to the energy problem. - Can we harness energy from outer space?
As alternative energy sources sputter to take off on Earth, scientists are turning an eye toward space. What are the most promising celestial options, and when could they be in use? - Could Salter's Duck have saved the oil crisis?
Its name sounds more like a beach tourist attraction than an alternative energy source. Could this Duck have prevented our current oil dependence? Is the renewable energy of waves the wave of our future? - Do wind turbines kill birds?
For all of its cleanliness, wind power has long been linked to the grisly deaths of birds. Why did one range in California earn turbines the name "bird-o-matics"? - Have we reached peak oil?
Oil is a nonrenewable resource. Have we found all the oil there is to find, or is there more out there somewhere? What's the best way to wean ourselves from our oil dependency? - How much power does the world consume?
Usually we're focused on our personal power consumption -- wondering why our gas bill went up or took a dip. But what if we added up everybody's power consumption? How much would it be? - What is clean coal technology?
Clean coal – isn’t that an oxymoron? Not anymore – see how energy companies are using coal in cleaner ways to generate massive amounts of electricity. Alternative fuels may be making headway, but coal isn’t used up yet. Learn why. - Is there a way to get energy for free?
Are wind farms and other renewable energy sources the closest we can come to free energy? Isn't there some crackpot invention out there that you can set up in your backyard? - Oceanic Wind Turbines (Video)
This array of wind-powered generators off the Dutch coast has the potential to bring clean, inexpensive power to thousands of homes. The Dutch Oceanic Wind Turbine project is examined in this Discovery Channel clip. - Solar Power Tower (Video)
A giant tower in Australia will combine solar technology and hot, rising oxygen to generate enough electricity to power 100,000 homes. Learn more about this amazing project in this video from Discovery Channel. - Clean, Renewable Water Theatre (Video)
The Water Theater Desalination Plant is both visually stunning and eminently practical. The Water Theater will create an endless supply of clean water for an entire city. - Mythbusters: Free Energy (Video)
Is there a way to get energy for free? MythBusters play with a live power line to find out. File this one under: "Don't try this at home." - Clean Coal Comeback (Video)
Watch this video about clean coal on HowStuffWorks. The MidAmerican Energy Company's Council Bluffs Energy Unit 4 will be the country's first power plant company to have mercury limits specifically noted in its air emissions permit. - Could aquatic microbes solve the energy crisis? (Video)
Two words could solve the energy crisis - "aquatic microbes". Watch this video showing how a company called Solazyme created the first ever algae-derived biodiesel fuel (with aquatic microbes inside) to help power a factory-standard automobile. - Invention Nation: Biodiesel (Video)
We learn how to make biodiesel fuel from vegetable oil. Learn more about biodiesel and alternative fuel in this video. - When will the world run out of oil? (Video)
Watch this video about oil drilling on HowStuffWorks. The world continues to increase its demands for oil and oil drilling, but when will we run out of oil? See how oil drilling works in this video from Reuters.
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Kristiana BurkContact Info:
Atlanta, GA
Channel Director, HowStuffWorks
I am a former librarian and teacher.
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Atlanta, GA
Channel Director, HowStuffWorks
I am a former librarian and teacher.
Send Email
Home Energy
Increasing the energy efficiency of a house is a smart and affordable home improvement. Learn about ways to improve the energy efficiency of your home.
- How the Energy Star Works
- How Home Energy Audits Work
- How Smart Windows Work
- How to Conserve Energy at Home
- 5 Wacky Forms of Alternative Energy
- How many solar cells would I need in order to provide all of the electricity that my house needs?
- What's the one thing you can do to your home to save the most energy?
- Green Gadgets: KILL-A-WATT (Video)
- Energy Efficient Homes (Video)
- Home Energy Plan (Video)
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