My guess is he’d sell little wooden garden windmills and bridges (trolls and gnomes sold separately.)

i have some school homework for science and it’s really hard can anyone tell me…..
how to build a candle operated steam turbine from simple materials

Build a simple wind powered generator

and build a working model for a solar water heating system using every day materials

I saw some homes where their entire roof was covered with solar panels. How much can you save on your electricity bill with this?

Energy project. I’m working on coming up with a renewable energy source for Turkey. Thanks!

How the voltage differences are managed, and
Where they are connected indeed?

Don’t make fun! I DO HAVE POWERS! give answers short sweet and to the points not ten pages long! ‘KAY!

Like will wind energy ever run out?

Eventually (in say 5-10 years), I plan to be building a home with my boyfriend. Well, he’ll be building it, and I’ll be helping finance it. He works in construction, and has a pipefitting course, so he can do pretty much all the work, except the electrical.

When it comes to electrical, I’m very interested in solar power or wind power. I’m an environmentalist, and I’m always trying to live a little greener. From what I can tell installation will cost me an additional ,000 maximum.

Lets say hypothetically, I’m willing to spend this money and I’m not worried about the installation costs "paying for themselves". I’m okay with giving this ,000 to the environment (its sure given me a lot more then that).

Hers my question, if we ignore the inital installation costs, would solar or wind power be 1. Cheaper over time, 2. About the same, or 3. More expensive?

This question is not as stupid as it sounds: it relates to a law I half-remember in Physics, about the preservation of Energy.

I rent an old house that still has the wooden framed windows and they just let the drafts right in. What is the best way to put plastic up? I must have not done it right last year because my gas bill was like 0 a month in the winter for a 2 bedroom rowhouse that is vey small. Also, I would turn the thermostat all the way off when I left for work in the morning and turn it on when I returned in the evening. Could this have also contributed to the high bills? I just didn’t feel safe letting it run all day with no one home. Any serious heating energy saving tips will be greatly appreciated. Thanks

Auto on feature does not work properly when I closed the vent in the living room. AC run continuously.

My school is having a science fair. I really need an A in that class, so my Dad and I are making a mini wind turbine from scratch. When the little planes (or whatever they’re called) rotate, that wind is supposed to turn into electricity and light up a light bulb. Anything would be very helpful (a website, directions, …..).
Thank you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I want to make my home as green as possible. i was thinking about getting the energy effecient lightbulbs, washer/dryer and fridge. anything else i can do?

a) What type of a simple machine is a windmill?
b) How does a windmill work to grind grain?