Engineering - July 2007

2007-07-14 11:02:52 · 2 answers · asked by JAMES 4

2007-07-14 09:56:47 · 4 answers · asked by JAMES 4

when looking at the overall appearance of the most advanced robot ( ASIMO) it really makes me faint..it looks more like a doll..why are scientists making a humanoid that looks so plastic..
a friend of mine ( electrical engineer) made a graduation project of a replica of the " Terminator Arm" from the terminator movie & it only weigthed 2.5 kg..& it was fully designed & programed in less than 5 months..it could hold a cup,shake a hand, or break a neck...
i don't know why scientists pick those crapy designs for something called humanoid..is there an explanation for this ?

2007-07-14 09:40:03 · 5 answers · asked by Anonymous

2007-07-14 09:07:34 · 6 answers · asked by Anonymous

Hi there. I study electronics engineering and i need an stand alone simple project but i dont know what to do. what i mean with "simple" is something like make a program that change binary to decimal... I really need some ideas please

2007-07-14 08:59:11 · 1 answers · asked by Anonymous

I did the math and it multiplies by 15 so if i use a 9volt battery it should be 145V i know you can touch high voltagee and all you'll get is a big jolt but.....i'm worried about the amperage..can someone tell me why or why not to touch the leads (wire)

2007-07-14 07:44:26 · 9 answers · asked by Anonymous

2007-07-14 07:19:40 · 41 answers · asked by Anonymous

2007-07-14 06:57:51 · 7 answers · asked by jim m 5

@ a fire station..How much longer will this bulb stay illuminated?And even if these bulbs are not as bright as some other types of bulbs.Why don,t citys around the world use this type in 'Some' street lights?so they could save on Energy ? I know they wouldn,t be right for All lights but in historical places it seems like they would be a good idea..Don,t they make this kind anymore?
> Question from my niece -4th grade this year <

2007-07-14 06:47:32 · 4 answers · asked by reseda1420 4

2007-07-14 06:43:35 · 4 answers · asked by jim m 5

The system are the train are inside a floating tunnel?
And the second one was the the track of the train are in metal or in magnet it will be under and above it in the middle it is like riding in a rollercoster?

The windmeel was about to be tested to, out in the open sea so if this thing work out there then this can give less fuel use for transportation for many people in the near future?

This are only my theory?
Will it work?

2007-07-14 06:30:29 · 1 answers · asked by Anonymous

I am currently working on a garage conversion at my house and would like to add create an 1100mm wide window at the rear of my single skin brick garage.
Before the Building Regulations people will allow to insert a steel lintel and remove the brickwork below, I must first prove that the 5Kn L shaped Catnic lintel is strong enough for the job.
For info The double garage is 5m x 5m square with a pitched roof

2007-07-14 04:16:32 · 2 answers · asked by Anonymous

electrical

2007-07-14 03:42:35 · 6 answers · asked by jay c 1

2007-07-14 00:33:14 · 1 answers · asked by siamak n 1

Keep in mind that I have to have something that will handle the ramp up voltage and I need an efficiency rate of 100%, not 90%.
I have tried inverters up to 1500 watts with 3000 watts peak voltage but they crap out just as the motor starts spinning. Does this mean that I will need a pure sine wave inverter? I have been using modified sine wave units so far. This shouldn't be that big of a deal, I am only trying to power a large,110 -125 volt motor.

2007-07-13 20:33:27 · 6 answers · asked by g4331 3

2007-07-13 18:31:27 · 4 answers · asked by Anonymous

we pronounce that this is AC current and this is AC voltage but what is the full form of AC?

2007-07-13 18:22:12 · 18 answers · asked by jenish 2

2007-07-13 18:11:50 · 9 answers · asked by subin 1

2007-07-13 17:52:47 · 1 answers · asked by JAMES 4

In curcuits how does electricity travel? Can you give me a good indepth post on it? Can you also explain how postive and negative charges effect the course of travel for electrons?


Here is what I thought happened which I'm not sure is ture.

The power source has a negative charge which reples electrons and since electrons are losely bound to the metal they travel to the other end of the curcuit which has a postive charge that attracts the negatively charged electrons.

I understand voltage is the force that pushes electrons and the resistance in the wire is the force that "resists" the flow of electrons. But I'm not understanding any of it. Can you help me out please?

2007-07-13 17:50:14 · 4 answers · asked by jack 6

If you had plastic covered braided steel cable and chromed chain of the same thickness, which would be harder to break?

I imagine it would be harder to cut or saw the solid chain.

I am asking this to figure out what is best to use to secure my motorcycle to some steel pipes.

2007-07-13 17:03:51 · 5 answers · asked by Anonymous

2007-07-13 16:41:52 · 3 answers · asked by CHERRY S 1

2007-07-13 15:22:58 · 4 answers · asked by Anonymous

If the output arm is 1 meter long, how long does the input arm need to be?

1)
0.3 meters
2)
3 meters
3)
4 meters
4)
6 meters

2007-07-13 14:41:39 · 3 answers · asked by Anonymous

I need to make an electromagnet but soft iron rod seems pretty rare. I have steel rod in abundance, so I was just wondering if this would work instead?

2007-07-13 13:44:20 · 7 answers · asked by Anonymous

Hey, I lost the screw cap to it, now it doesn't work (well, it does when i use aluminum foil but i gotta hold it in place). I was wondering where could I get a replacement cap (if one is available or if anyone has a bright and creative idea on how make a makeshift one

2007-07-13 13:40:23 · 4 answers · asked by blazinblazn08 2

2007-07-13 12:12:55 · 4 answers · asked by pen 1

I am looking for a technology or a device that would enable me to measure the distance between a Base point and the remote node of the device. It should supply me the measurement continuously (like 50 times a second). It doesn't have to be a released product. A technology or a method would be fine.
I am thinking of a radio emitter and a material to reflect it. And calculate the time it bounces back and find the distance. Or calculate the amount of decrease of the power of the signal.
I can pay about 100-500$ for a good answer.

2007-07-13 11:34:04 · 7 answers · asked by Anonymous

....just in case it falls?


(serious question...really)

2007-07-13 11:10:34 · 4 answers · asked by mikey 3

"The MYT (Massive Yet Tiny) Engine is an internal combustion engine of new design the features multiple firings in one cycle, producing enormous torque in a small area.
With 40 times higher power to weight ratio, low parts count, low maintenance, high mechanical efficiency, and low pollution, the MYT™ Engine will benefit airplane, big ship, 18 wheeler, SUV, passenger car, even down to carry on power generator applications. The MYT™ Engine as a pump/compressor also exceeds existing pumps/compressors in providing massive pressure, volume, and flow, all in one unit.
The first prototype model exerts 850 cubic inches of displacement even though the size is only 14" diameter by 14" long, weighing 150 lbs, compared to 3000 lbs for a comparable engine of conventional size capable of that much power output"
The engine gets 150 mpg!! has low maiantenance!! and can run on biofuels!!! An engine of this type weighing 35 lbs could power your car with 350 hp!!! It is patented by angel labs!!

2007-07-13 10:48:16 · 2 answers · asked by Deslok of Gammalon 4