Engineering - December 2007

Most of us have seen the nodding donkey, nodding up and down. But how does the action of the nodding donkey, pump oil/gas etc. to the surface?

2007-12-06 09:32:35 · 3 answers · asked by Petero 6

2007-12-06 08:02:04 · 4 answers · asked by a404boy 1

2007-12-06 06:16:24 · 6 answers · asked by cheenarca 3

I realize this is a shot in the dark, but I am looking to read in binary information from a microcontroller. Either a string of bits or 8 pins of the microcontroller will each be a bit of the number. Either way works. I need a chip that can read in that info and take care of all the logic behind turning the binary number into a LED display. ANY help or points would be greatly appreciated.

2007-12-06 06:07:48 · 2 answers · asked by Anonymous

Manufacturing. Which process would be more appropriate to making a Large gear?

2007-12-06 05:52:49 · 4 answers · asked by darknhansom86 1

I need a quick release mechanism to release a load of about 20,000 lbs. Ideally the ball bearing clutch type, where a ring holds ball bearings in a groove on the load pin. Sliding the sleeve back allows the ball bearings to move out, releasing the pin.

Does anybody know who sells these, or some other type of load release mechanism? I think special effects people use them a lot.

Thanks
Dave

2007-12-06 04:58:31 · 2 answers · asked by Anonymous

(cont.) -ed impedance, and the electromotive force, E, called voltage, is given by the formula E= I (times) Z. Electrical engineers use i to represent the imaginary unit. An electrical engineer is designing a circut that is to have a current of (6-i8)amps. If impedance of the circut is (14+i8) ohms, find the voltage.

2007-12-06 04:31:15 · 4 answers · asked by Anonymous

We have a relatively new microwave. I was reheating some ground hamburger for my dog on a microwave-safe plate in the microwave. I was watching it spin around for the 10 secs, and noticed 2 tiny "sparks" coming from the meat. Does this mean the meat is contaminated with metal? I couldn't find any pieces. Or is this normal? (I've heated meat before, but never really took notice) I'm worried about the rest of the meat in the refrigerator as well as the microwave. Thanks.

2007-12-06 03:42:54 · 3 answers · asked by Naztazia 4

A- 20
B- 32
C- 12

2007-12-06 01:08:42 · 5 answers · asked by hitman812001 1

Is there any specifications specifying the maximum content of various metals in the sand used for cement concrete ?

2007-12-06 01:07:24 · 1 answers · asked by travelpa 7

2007-12-06 00:48:46 · 6 answers · asked by Anonymous

2007-12-05 21:43:38 · 2 answers · asked by Rishi P 1

2007-12-05 20:38:13 · 3 answers · asked by dustandrags 2

Two men on the same side of a tall building notice the angel of elevation to top of the building to be 30 degrees and 60 degrees respectively. If the height of teh building is known to be h = 50 m, find the distance between the two men

2007-12-05 17:01:28 · 4 answers · asked by Cynical_Soul 1

I'm a 4th year MS(Software Engineering) student of VIT University, Vellore, India. its a 5 year program.

2007-12-05 16:27:33 · 2 answers · asked by Juani 1

I've been experimenting with flyback transfomers lately. I just hold a piece of metal in my hands for the coil to arc over. Most of the time it doesn't hurt that much. Will this shorten my lifespan, im just curious?

if you dont know what a flyback is, click:
http://en.wikipedia.org/wiki/Flyback_transformer

http://www.youtube.com/watch?v=P7-aYgPSgPM&feature=related

2007-12-05 15:28:22 · 3 answers · asked by some guy 2

using the same wire that is used for wiring up a house for elctricity, what is the best way to rig it up so I can plug it into the outlet without blowing the circuit breaker? AND if I am using a three foot iron rod, how do I tell which end is which polarity? and are there instruments for measuring guass?

2007-12-05 14:57:10 · 4 answers · asked by dustandrags 2

2007-12-05 14:51:35 · 1 answers · asked by Anonymous

Rated Hp = 4600
Rpm = 1500 (4 Pole)
Power factor = 0.95
Voltage = 3300
Amps = 828
Freq = 50hz
3 Phase

-Trying to work out the output in (MegaWatts) of a motor given the following

-The power input when operating at rated output load and Power Factor

- Efficiency of the motor when operating at rated output load and power factor
[any help thank you]

2007-12-05 13:31:42 · 4 answers · asked by Donut152 1

I asked my mom, but she's not sure.

2007-12-05 13:15:24 · 9 answers · asked by Anonymous

when we mount a camera on a robot for it's vision, then what kind of output is obtained and how such an output from the camera is fed as input to a microcontroller to process it.....pls someone help me

2007-12-05 13:02:50 · 4 answers · asked by santu 1

2007-12-05 12:30:17 · 3 answers · asked by killzone 2

How do Drafting and programs like CAD used for are they the same thing are they related. In general how do drafting and CAD improve engineering

2007-12-05 12:03:13 · 3 answers · asked by J39P 1

I am from Saudi Arabia where we have many industries for chemical and petrochemical engineers. I have a BS in computer sciences.

Now I have a scholarship to do masters degree. I am planning to do Chemical engineering so that I can get a job in theses industries.

Do you think that chemical engineering will be a good combination with computer sciences? I talked with prof., he told me it will be so since there is something called process engineering in which computer programming involved. Do think so?

Is it true that chemical engineers are not needed as many as other engineers?

2007-12-05 11:58:26 · 1 answers · asked by ahapp5 2

I have created a multitouch screen which works on the "frustrated total internal reflection" technique. Mine is slightly different than the norm however, in the way the image is projected onto the screen. Is this difference large enough to make it a separate patentable entity from those previously pantented, or would it still be just too close. I know this is vague, but I'm more looking for whether slight differences in an invention can warrent a new patent and legal marketing of a product. (all hypothetical)

Ask for clarification if needed! Thanks!

2007-12-05 11:25:32 · 2 answers · asked by Legs M 3

it says on my flashlight u can get 20 hrs with alkaline

2007-12-05 11:02:35 · 9 answers · asked by Anonymous

Does anyone know what this code is in gates leves?
like change in to gates, AND gates etc!

module IOcont(DIN, RESET,CLK, serial_IO, AddrOut, chipSel,DataOut);
input RESET; //The reset signal.
input CLK; //clock
input serial_IO; // The serial port through which communication to the external
// system occurs.

input chipSel; // This is the handshaking signal from the external system telling the
// input IO controller that it is ready to send data

input[13:0] DIN; // A signal from the processor which tells the input
// IO controller to receive data from the external signal

output [13:0] AddrOut; // The 14 bit data is converted into a parallel 14 bit data,
// then stored in AddrOut register.

output [2:0] DataOut;

reg [13:0] AddrOut;

always begin
if(chipSel == 1)begin
AddrOut = DIN;
end
else begin
AddrOut = AddrOut;
end
end

endmodule

2007-12-05 07:29:03 · 2 answers · asked by Anonymous

2007-12-05 06:23:50 · 6 answers · asked by samsonite 2

How is a "crystal" vase different from a regular glass in how it's made? The only method I know of to make a glass is glass blowing. How do they make sets of glasses all exactly the same size and shape?

2007-12-05 06:14:31 · 0 answers · asked by The Nibbler 1

2007-12-05 05:21:45 · 1 answers · asked by ? 1