alternative energy
alternative energy
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The Power Predictor – Data Collector for Alternative Energy $39.99 |
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Free Electricity Alternative Energy Methane Solar Wind $33.97 |
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LARGE TURBINE IMPELLER WHEEL HYDRO ALTERNATIVE ENERGY OFF GRID WATER STEAM NICE $349.99 |
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Airpax 200 amp 65 volt d.c. circuit breaker – solar rv dc alternative energy $60.00 |
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Windmill Wind Power Electricity Alternative Energy $16.12 |
What is alternative energy and what are some examples?
I need a few examples of alternative energy and what it is.
Alternative energy is a term that refers to methods of generating energy that are not the usual method (i.e. fossil fuels). There are many forms of alternative energy, but, as energy is conserved, you have to ask yourself where the energy comes from (and the answer is always “the sun”). You should always be careful when you look at energy forms, because some of them just won’t work – like the idea of putting water in your gas tank that another user has suggested (thermodynamics shows that these ideas won’t work).
The sun undergoes nuclear reactions which result in the release of photons (beams of light that have energy associated with them). Alternative energy forms just capture the energy from the sun in different ways (actually, fossil fuels also got their energy from the sun a long time ago).
Here are a few alternative energy sources and how they relate to the sun:
Bio-fuels: We can grow plants (such as algae, corn, sugar cane) which collect the photons from the sun and use the energy in the photons to create sugars. We can harvest those sugars and and turn them into liquid fuels such as ethanol.
Solar Energy: This technology directly harnesses the energy of the sun by absorbing photons through photovoltaic solar cells and which create an electrical current when they absorb a photon. Additionally, you can use the energy of the sun to thermally heat an object, which is referred to as solar-thermal energy.
Wind Energy: When the photons from the sun hit the air in the atmosphere, that energy can cause the generation of wind. We can harvest the wind energy by using turbines which spin when the wind hits them. The spinning motion is used to turn a generator which produces electricity.
Hydro-electric: When the sun hits water, it can cause the water to turn into a gas and later that gas can result in rain. If the rain occurs at a high enough elevation and gets held behind a dam, the water now possesses a high potential energy due to the energy from the sun. That energy can be turned into electrical energy by converting the potential energy of the water into kinetic energy which is then used to turn a turbine in a hydroelectric dam.
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Panasonic NC-EH22PC 2.3 Quart Electric Thermal Hot Pot $65.75 Boils 2-4 quarts of water and automatically switches to keeps warm 4 temperature settings (140 /180 /190 /208 F)Bincho-tan with non-stick coated interiorDe-chlorination and energy saver timer modesEasy-to-read water gauge and low water warning Safety locking lid and dispenser (included)12 7/8″ W x 9 3/8″ H x 11 1/4″ D weighs 4.2 lbs.Includes magic power cord… |
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Zevro PTA100 Perfetto Pasta Cooker $9.99 Zevro specializes in the development and production of unique and innovative kitchenware products designed to make your life easier. We pride ourselves in providing our customers with the most creative solutions for their unique needs. Save up to 70% of energy and up to 50% of water by using Perffeto compared to cooking pasta in a traditional pot Only 1 liter (slightly more than 1 quart or 32 flui… |
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Jarden Sunbeam 18 Qt Roaster Energy-efficient Alternative Units Generous Interior $68.88 In fact, to accommodate an 18-pound turkey, plus, it cooks up to 30-percent faster and with up to 77-percent less energy than a traditional oven. Whether cooking a pot roast at home for the family or going across town to a potluck, this portable roaster oven offers a variety of conveniences for the everyday chef…. |
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Self-Healing with Sound and Music $10.21 Andrew Weil, M.D. & Kimba Arem Have you ever been deeply moved by a piece of music? If so, then you may already recognize the incredible impact of sound on your health and well-being. Today, sound therapy is used to effectively treat a surprising range of health challenges including chronic pain, stroke, stress, and much more. On Self-Healing with Sound & Music, bestselling author Dr. Andrew Weil … |
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Sublime Acoustic: Bradley Nowell & Friends $6.90 No Description AvailableNo Track Information AvailableMedia Type: CDArtist: SUBLIMETitle: ACOUSTIC-BRADLEY NOWELL & FRIEStreet Release Date: 11/17/1998… |
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Light Chasers (Dlcd) $7.61 All products are BRAND NEW and factory sealed. Fast shipping and 100% Satisfaction Guaranteed…. |
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Magic School Bus: Getting Energized [VHS] $6.93 Topic: Energy The class’s ferris wheel is about to cause them big trouble unless they find a way to power the carnival’s hottest ride. Carlos’s younger bother Mikey electrifies the crowd after he plugs into a powerhouse of alternative energy sources…. |
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Essential Reiki Workshop [VHS] $24.95 Learn this profoundly effective method of healing by attending the extensive workshops at home. Everything you need except the Reiki attunements. Master instructor Diane Stein has condensed her wildly popular 3-day seminar into this at-home 4 video-tape guide – that runs for almost five hours! Reiki is an ancient form of hand-on healing derived from Tibetan Buddhism. In this breakthrough video, … |
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Qigong: Traditional Chinese Exercises for Healing Body, Mind, and Spirit [VHS] $13.98 Qigong is Chinese meditation in motion, an ancient healing art using posture, exercise, breathing, and concentration. This video shows you how to harness the power of qi–the energy of the universe–to heal body and mind. Qigong uses dynamic, gentle movements and meditative postures. The video starts with a warm-up of whole-body breathing. Then master instructor Ken Cohen teaches a selection of ex… |
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Sunforce 7 Amp Charge Controller $17.36 The Sunforce 60012 7 Amp Charge Controller prevents overcharging of 12-volt batteries. It is intended for use with 12-volt solar panels, and can handle up to 7 amps of array current and up to 100 watts of solar power. The controller is easy to use with a charging light that indicates that your battery is charging, and a green light that indicates a fully charged battery. The 60012 measures 4 x 1 x… |
