Engineering - March 2007

I'm making a wind turbine that lights up an LED light for a science project. The instructions call for 28 gage enameled magnet wire but I can't find any 28 gage, just 26 & 30. I don't have time to order any but we find the 26 & 30 gage at radio shack. You experienced electritians, could you look at the project in the link and tell me if I can use 26 or 30 gage?
______________________________________________ Project Link: http://www.re-energy.ca/pdf/wind-turbine.pdf
Alternate Link: http://www.re-energy.ca/t-i_windbuild-1.shtml
"If you use the alternate link you will have to click the 'Wind Turbine Instruction Plans' Link near the bottom of the page."

2007-03-27 02:52:15 · 4 answers · asked by Colton 2

Hi I am curious about an output of my DC power supply output.
It has three connecions: positive, common, and negative.

I use only the positive and negative terminal, but I am wondering what the common terminal is for ? Can anyone give practical example in use?

Does it technically like centre tap (ct) in transformer, but this is in DC?

Thank you!

2007-03-27 02:10:56 · 7 answers · asked by TJ 1

2007-03-27 01:56:24 · 7 answers · asked by mckenna 1

2007-03-27 00:44:20 · 2 answers · asked by Anonymous

I am working with a NGL pump which has been tested using water. I have a chart (which is logarithmic) for converting the viscosities. The viscosity for the fluid is in cP and the chart is in cS, and there are heaps of lines. I've haven't been this confused for years :) can anyone help?

2007-03-26 22:57:18 · 2 answers · asked by beowulf 2

what are the causes of flourination of water?

2007-03-26 22:17:44 · 1 answers · asked by Rajesh S 1

Show us how to do a catapult.Thx!

2007-03-26 22:03:50 · 4 answers · asked by Anonymous

metal detecter circuit
is that circuit wich detects any type of metal if present.

2007-03-26 22:03:38 · 3 answers · asked by Niranjan V 1

Where do you take temperature measurement on a dry type air cooled transformer. From the core or on the windings. If I touch the windings the temperature feel normal, however the steelcore is very hot. Apart from harmonics and overload, what other reasons can lead to transformers overheating.

2007-03-26 21:31:09 · 4 answers · asked by Anonymous

my niece just finish her high school this month and is about to enter college. She's only 16, talented,well-discipline and a very smart young lady.. But she is still confuse what to take up chemical enginnering or b.s.physics? She can have a college education in the two best university here in Philippines. she's worried what will be her future after she took up this courses...
thanks for all your answers...

2007-03-26 21:04:53 · 5 answers · asked by supportive aunt 1

want to know why and how does egg crates mounted on walls or irregular textured walls reduces sound reflection... is it the same as sound absorption?

2007-03-26 21:03:21 · 3 answers · asked by hyj 1

2007-03-26 20:03:25 · 5 answers · asked by Jaco d 1

Eg:1. 2" x 2" x 6mm M.S.Angle - 20 ft
2. 10mm MS Plate - 30 sq ft.
3. 4" M.S.Pipe - 25 Feet
How to get the weight of the above items.

2007-03-26 19:56:10 · 3 answers · asked by Sunil E 1

i just graduated from high school and i intend to get a degree in Chem Eng. What do u all think? Is the pay high? That matters the most u noe.

And what is the best job (with high pay and fun working enviroment)?

i like nature and kids.

2007-03-26 19:14:33 · 4 answers · asked by guynextdoor 2

2007-03-26 18:51:05 · 4 answers · asked by the engineer 1

2007-03-26 18:46:07 · 2 answers · asked by khoo 1

I am not talking about a normal or timed relay. I want one that when it is energized for a second it flips pins until it is energized again then flips back. If there is something like that out there what is it called?

2007-03-26 18:22:14 · 3 answers · asked by jhatzky 2

2007-03-26 17:33:49 · 5 answers · asked by Anonymous

2007-03-26 17:05:00 · 7 answers · asked by sparklycrayons 1

A sinlge phase AC motor is needed to lift up vertically a load of 150kg to 200kg using chain and gear. Please help.

2007-03-26 16:27:52 · 2 answers · asked by Martin 1

power lines are often unshielded, and if a person coulddach high enough to touch them, they would be electrocuted y their inredibly ghvolage and current. How is it possibl thads can it on these wires without being harmed?


Help!!!!!!!!

2007-03-26 15:58:10 · 3 answers · asked by ocqueen92 2

My sciense teacher make each student make a Kinetic sculpture. I know what is a Kinetic sculpture, but I don't have many ideas about how to make any. I searched the web but didn't find what I was looking for. Also it only can be powred by wind, water. I can't use electiricity or light or sound to make the sculpture move. I can't use lego to make it eigther.I only can use wood, paper, or metal. So PLEASE someone help me on this. I only got until Friday March 30. If you can help can you please show me the direciton on how to make it. Thank You ^_^

2007-03-26 14:56:29 · 3 answers · asked by fcute_100 2

I am looking for a design for a Electric Piston with a 3inch stork. This is going to be used for an electric door lock.

Elaine M.......... I can be E-mailed at grdygetter@yahoo.com

Thank You,
Grdy

2007-03-26 14:43:23 · 3 answers · asked by divechimes 1

why

2007-03-26 14:13:12 · 5 answers · asked by Anonymous

People think I'm nuts, or am dealing with indefinate energy, but the truth is it works. It can heat or cool from electricity, or produce electricity from heat or cold. No moving parts. Just my little black box.
Imagine this unit in a larger size. Not only could it produce heating or cooling, but could produce the power necessary to operate other electrical devices in your home or business.

NASA won't talk to me. They act like I'm an idiot! You could hang one of these out the window (laugh) and get enough power to supply a device in space instead of all those solar panels or atomic engines.

I have written to congress people asking for support. Guess what? No responses!

I have over 40 years as an Electrical Design Engineer, and have created other things that you may well use today. Now, I've got the future of power in my hands, and nobody wants to listen, or even think of the possibilities.

So, my fellow Y!A's what do you think?

2007-03-26 14:07:32 · 11 answers · asked by Bigdog 5

I am doing a project for school on other ways of transport than cars that use gas and oil. I once read in a book that was set in the future that they used magnetic levation to power hover cars.
do you think this concept could work in real life. If we had a metal grid under all roads, and had a negative magnet under every car, then the cars could float. But how could they move forward and back? do you think it is a good idea or should i choose another topic?

2007-03-26 13:35:54 · 7 answers · asked by Anonymous

2007-03-26 13:19:45 · 1 answers · asked by Anonymous

how to make sure that acid is suitable for certain reaction as a catalyst.

2007-03-26 12:43:40 · 1 answers · asked by suhaiza 1

idiotology controls the world?

2007-03-26 12:31:26 · 2 answers · asked by Anonymous

idiotology controls the world?

2007-03-26 12:29:34 · 1 answers · asked by Anonymous