Engineering - February 2007

I was walking through Washington park in Denver, and I saw some sort of old, disconnected electrical device on a tree. It looked like a birdhouse without the hole, it was rusty, and it had a three-wire electrical cable, about an inch in diameter, and about four feet long, dangling out of it. It didn't look like a light fixture, or any typical device that I could ID. It was stapled about ten feet up on a cottonwood. What the hell is it?

2007-02-23 10:14:24 · 7 answers · asked by bookraiders 1

What are those strange ball-like things that are on some electric/telephone wires? I think they're on electric wires. I've always wondered.

2007-02-23 10:09:54 · 6 answers · asked by kcdude 5

i know this is a stupid question,but why are there locks on the canal? wouldnt it have been much easier to just connect the 2 oceans with no obstructions?????? if sea level is a constant,then i would think just a big hole in the ground connecting the 2 would suffice

2007-02-23 10:08:24 · 3 answers · asked by Anonymous

2007-02-23 09:57:14 · 4 answers · asked by blacksmith37 1

pls answer tnx.

2007-02-23 09:42:28 · 3 answers · asked by busils_1107 1

2007-02-23 09:35:49 · 3 answers · asked by Lee D 1

and other related topics like:
absolute error
relative error
etc..

2007-02-23 09:32:11 · 6 answers · asked by Kim 3

Hi i have a question and i was wondering how you solve it
river is 4m wide, 0.25 m deep and has a velocity of 1.0m/s. how do you calcualte the discharge in m3/s (that 3 means cubed)
i have no idea how to solve this and i would be grateful if someone could show me how??

2007-02-23 09:13:27 · 3 answers · asked by fat_penguin17 1

Description of wires i see: Two tiny metal plates each with another tiny plate over them, over which are
screws. In the first one is a yellow wire, the other one a red wire.
These are the only wires attached to the small plates. There are lots of
other wires coming out of white plastic wire which holds them all, but none of them
are attached to the plates : the colors of them are green, orange with small white strips,
white with small orange strips, dark green with tiny white stripes (but that one isnt coming from wall,
and black, and another small white wire.

Screenshots:
http://img2.freeimagehosting.net/uploads/8472e28b98.jpg
http://img2.freeimagehosting.net/uploads/064e0d26c3.jpg
http://img2.freeimagehosting.net/uploads/c6ec593650.jpg

Intermittend adsl disconnections, line noise, please help if you know anything. All started since dad was moving wires around ages ago. Any useful help greatly greatly appreciated.

2007-02-23 09:13:13 · 3 answers · asked by Tresmius 1

amplanning on self building, dormer house in countryside, believe weather not too great in ireland and rains a lot, and am interested to know if a timber framed house is more suitiable to a brick one, site is open with no trees etc. and can be windy,

2007-02-23 08:47:28 · 4 answers · asked by rosieposie0 1

I'm talking about your basic transistor in all functions. For you non-electronic people, transistors are those things in your computer that are in there so your computer doesn't EXPLODE or OVERLOAD ITSELF! If you're wondering why I'm asking, I'm doing research for Gateway To Technology @ Ferguson Jr. High School.

2007-02-23 08:34:10 · 9 answers · asked by dog_trains 1

Hi, I want to closely match the speed of 2 12vdc motors that pull about 4 Amps. I want to put a speed controller on one of them to tune it so that it matches the other. Is this possible by using a large 100W variable resistor? also to match the speed in both directions would i need 2 of them or can you run the raviable resitor in reverse polarity mode?

2007-02-23 08:12:48 · 2 answers · asked by Robbie D 1

I am doing a projest in digital fundamentals and i chose a massager that can rap around your wrist but I need to know the basic sturture of it. any diagrams would be apreceated.

2007-02-23 08:07:40 · 1 answers · asked by cmonsta 1

This is an electronics question on how do you measure voltage drop I need what position the swich needs to be turned to. If you measure with current flowing. And how you attach the meter in the circuit.

2007-02-23 07:58:45 · 3 answers · asked by Maker123456 3

W x L x H? In that order or your answer will not be considered

2007-02-23 07:56:20 · 3 answers · asked by RowZeZe 2

I need to know the unit of measure for resistance and the name of the meter used to measure resistance. This is an electronics question and I need it to study for a test so I would love the correct answers cause this test means alot to me.

2007-02-23 07:56:07 · 6 answers · asked by Maker123456 3

Is there anything that I can do on the side while working to make some extra cash?

2007-02-23 07:52:42 · 2 answers · asked by Maikel G 1

Please help! I have to drop an egg from a 40ft height! I only get to work with two pieces of copy paper and about 12 inches of scotch tape! This seems impossible! PLease help! ANy ideas would be good! I am thinking a bout a parachute, but will something on the bottom help too? Ahh! Help!!!

2007-02-23 07:37:32 · 3 answers · asked by rickyM 1

2007-02-23 07:16:44 · 2 answers · asked by roger w 2

2007-02-23 07:14:40 · 2 answers · asked by jtflautist 2

I'm building a model roller coaster for physics...and I got all the materials down except the supports. anyone know any good materials to use for the supports? and the tracks are going to be plastic tubing thing

2007-02-23 06:30:49 · 3 answers · asked by magik ;) 5

2007-02-23 06:15:02 · 1 answers · asked by Simexous 1

what material could be used to creat a wing for a rocket/glider

it rockets up, then at the appoge, it unfolds its wings via motor and drag flaps

only need 50 to 100 kgs

2007-02-23 06:13:25 · 1 answers · asked by Anonymous

what subjects r needed for this engineering??

2007-02-23 06:09:06 · 1 answers · asked by Ameera S 1

2007-02-23 05:30:05 · 2 answers · asked by prass 1

2007-02-23 05:06:02 · 9 answers · asked by adrienna a 1

2007-02-23 05:03:46 · 5 answers · asked by Anonymous

2007-02-23 04:58:08 · 1 answers · asked by THEGURU 6

Does electricity go thur the wire or around the wire?

2007-02-23 04:45:43 · 10 answers · asked by Jan H 1

I am interested in doing electronic projects & i would like to know what kind of projects a 2nd year b.tech(eee) student can attempt. plzzzzzz .............. help me?

2007-02-23 04:17:27 · 3 answers · asked by Kiran 143 1