Engineering - March 2007

If anyone could help me find information or pictures dealing with the structural design and architecture of the Petronas Towers. Or if anyone could help tell me about all the geometry in the Petronas towers. I'm not having much luck finding much info on the web, and I want to check out books but they're all gone. I need help!

2007-03-14 11:42:01 · 1 answers · asked by ~SMCM101~NYC 2

2007-03-14 10:47:39 · 2 answers · asked by JAVADOC 1

2007-03-14 10:23:12 · 4 answers · asked by gloria_j_sanchez 1

I need to see a circuit that can do this at high frequencies like 13.56 m hz. Preferably a simple circuit. I hope it can be done with an op amp or transistors.

2007-03-14 10:13:35 · 1 answers · asked by bob_9_bit 1

Consumer fireworks contain a maximum of 1.5 grams of fireworks. I was wondering, in comparison, about how much firepower is this. I know it is a minimal amount.

2007-03-14 10:12:06 · 2 answers · asked by cevfuture 1

i have got a normal boiler with a hot water storage cylinder, do you have to take out the emersion heater to install the hot rod, where would i get good info for this type of job.

2007-03-14 10:05:00 · 2 answers · asked by the wheel 2

a. Retain and give off heat energy
b. Reach the melting point
c. Reach the boiling point
d. Vaporize into a gas
e. Bend under heat stress

2007-03-14 10:02:15 · 3 answers · asked by fran_tasha 1

When people talk about the electric motor, why talking about nominal power and peak power? and they are all "power", why makes a difference?

And what is "phase inductance" and why is the rotor posistion so important?
Thanks~

2007-03-14 09:42:49 · 3 answers · asked by burningcalories 2

Please HELP! And if this is possible could someone like tell me how to draw it? THX

2007-03-14 09:34:18 · 3 answers · asked by Mike T 2

I need an equation which will give me the wind vector, if i have the ground speed being 478 kts with a true heading 350, and a true airspeed of 500 kts and a true course of 355.

2007-03-14 08:49:05 · 1 answers · asked by Anonymous

2007-03-14 08:40:39 · 5 answers · asked by Big Dave 2

2007-03-14 08:33:45 · 3 answers · asked by stmeng3 1

2007-03-14 08:30:11 · 3 answers · asked by Mike B 1

What if i design a guitar pick that is the same size and shape as other guitar picks on the market? can i patent mine?

2007-03-14 08:23:12 · 4 answers · asked by TheMojo 1

2007-03-14 08:22:17 · 1 answers · asked by Merajzai 2

2007-03-14 07:52:11 · 2 answers · asked by Fernando W 1

2007-03-14 07:45:08 · 3 answers · asked by chipbuyer 1

2007-03-14 07:29:55 · 4 answers · asked by Anonymous

2007-03-14 07:24:29 · 5 answers · asked by cherquekz_222 1

i want to design something that can measure the distance of an oblect using a microcontroller. what i have thought of is .. when i press a button a pin of the micrcontroller(uC) will go high. this will lead to the transmission of the ultrasonic waves from the transmitter. at the same time i will start a counter in the microcontroller which wil increase every micro second. when the receiver gets the reflected signal it make one pin high or rather input some signal to the micrcontroller. when the uC receives this signal the counter will stop and a distance will be calculated based on that counter value.

can anyone please tell me wether this thing will work or not.. also i want to know how to generate soun waves from that transmitter.. will it just start signalling them as soon as give them the required voltage? .. also what happens when the receiever gets those waves?.. is there any voltage difference or something like that...

any help will be greatly appreciated

2007-03-14 07:17:55 · 1 answers · asked by Anonymous

you know how you open a box of staples to refill a stapler...well how do they make them stay together so you can add so many staples at once? lol. i know i sound dumb asking, but im at work, and just did this and got to thinking. i looked it up online and havent found anything yet.

2007-03-14 07:08:17 · 7 answers · asked by tiffanie.tucker 1

a height of 20 in. explain. thanks.

2007-03-14 06:55:42 · 6 answers · asked by catmuffin 1

A common-emitter audio amplifier stage has a 0.47 micro Farads coupling capacitor between the previous stage and its base. Which one of the following two audio frequencies will produce the greatest signal level at the transistor's base

___a. 40 Hz
___b. 3KHz
___c. Both frequencies will produce the same signal level at the base
___d. Common-emitter audio amplifiers never use a coupling capacitor.

i am taking an electronics course and i am having trouble with this question. please explain or show how you came to your answer

2007-03-14 06:53:30 · 3 answers · asked by ken s 6

In Figure P20.63, the rolling axle, 1.50 m long, is pushed along horizontal rails at a constant speed v = 8.00 m/s. A resistor R = 0.402 is connected to the rails at points a and b, directly opposite each other. (The wheels make good electrical contact with the rails, so the axle, rails, and R form a closed-loop circuit. The only significant resistance in the circuit is R.) A uniform magnetic field B = 0.1200 T is directed vertically downwards.

Figure P20.63
http://www.webassign.net/sercp/p20-63.gif

(a) Find the induced current I in the resistor.
A
(b) What horizontal force is required to keep the axle rolling at constant speed?
N

2007-03-14 06:49:13 · 1 answers · asked by tiggerx313 1

I am a 3rd yr. COE and i want to begin making my thesis as early as now.. I plan to make Robotical Arms with the ability of changing its gear on different types with different kinds of function but my idea doesn't stops here because i am thinking of making an arms for mainly using lasers and together with it's security parameters to avoid accidents..This arm i want to make is mainly for dissecting very delicate stuffs "with" accuracy and efficiency.. of coarse, what i am thinking needs a long time of planning thats why i prefer on starting now..

Guys... Engineers and Non Engineers..
1.) What do you guys advice me as early as now.
2.) And is it possible that i could buy laser(real lasers which burns to dissect ) on the market with a affordable price or i should even make my own???

Please Help me Guys, I really want to achieve this.

2007-03-14 06:44:48 · 2 answers · asked by Chris 2

A Force , B Magnetic field , C velocyty , D charge

2007-03-14 06:36:38 · 4 answers · asked by triszaki 1

Hi, I am building a remote controlled car type thing (it uses the chassis from one) and I would like to add some kind of wireless video thing onto it.

What I mean is, this thing is remote controlled, and I would like to be able to see where it is going without having to go there myself, so what could I use.

It would need to be battery powered and maybe sent what is seeing back to some kind of screen or laptop. How would I do something like this?

Also, not to expensive please, I would be bying two!

2007-03-14 06:32:48 · 4 answers · asked by SM 3

2007-03-14 06:09:36 · 3 answers · asked by kris 1

i mean methods like welding or using lasers etc.

2007-03-14 06:04:55 · 5 answers · asked by kris 1

I am building a machine that will have paint balls rapidly shot at it. I need help designing a way that the machine can detect when it is hit by a paint ball and information be sent to the computer.

All ideas are appreciated.
Thanks

2007-03-14 05:50:29 · 3 answers · asked by Anonymous