Engineering - August 2006

2006-08-31 03:54:58 · 3 answers · asked by triamburate 2

On a microcontrolor (8052) if i want to use the timer2 as a time base

I want an Interruput every 50 milisecond. How will i calculate the capture value for a 10 Mhz crystal

2006-08-31 03:50:26 · 1 answers · asked by Martin T 2

Motion sensor.What's are it's uses and how it works?

2006-08-31 03:38:03 · 5 answers · asked by zweigoh 1

i want some information about gate valve

2006-08-31 02:39:07 · 2 answers · asked by jj_5926 1

...very sensitive generators fitted underneath all the motorways/bypasses which use the constant vibrations of the road to generate their electricity?

2006-08-31 02:34:31 · 18 answers · asked by wolfmettle 3

2006-08-31 02:34:01 · 1 answers · asked by no name 1

i want any information about gate valve ball valve how can i buy i

2006-08-31 02:27:24 · 2 answers · asked by jj_5926 1

2006-08-31 02:02:44 · 6 answers · asked by Angellina 1

Currently the transformer supplies the backup invertor and then the backup invertor supplies to the light phase(5A wiring) in series. This way the voltage correction is not very effective (i live in an area with a lot of fluctuation in voltage ) . What i wud like is to connect the tranformer and the invertor in parrallel to the light phase so that voltage correction is more efficient ..... but the problem with that is ... then when the mains power fails and the backup invertor turns ON then the current will also flow from the invertor to the light phase to the transformer ,back into the supply from the govt. cable and to other ppl's houses!!! pls help

2006-08-31 02:02:13 · 2 answers · asked by amit j 1

i need styrofoam to fill in d gaps & for vibration damping..

2006-08-31 01:25:58 · 2 answers · asked by Anonymous

2006-08-31 01:02:23 · 1 answers · asked by MoOnLiGhT s 1

2006-08-31 01:00:57 · 2 answers · asked by newdream 1

Where I dont have access to he earth

2006-08-31 00:52:35 · 3 answers · asked by saeed f 1

2006-08-31 00:50:01 · 10 answers · asked by Taliesin 1

I don't have access o earth

2006-08-31 00:09:58 · 8 answers · asked by saeed f 1

Obviously circles wouldn't work, but what advantages do a hexagonal profile have over triangular, square, pentagonal, heptagonal, etc.
Or does the shape have little or no impact ?

2006-08-30 23:01:38 · 11 answers · asked by dumberthangeorgebush 5

I don't understand what means coherent interferometry and low-coherence interferometry under subtopic "types of interferometry". http://en.wikipedia.org/wiki/Interferometer

Low-coherent interferometry uses white light so that its coherent length is very short, able to measure very small path difference.

Coherent interferometry uses laser so that its coherent length is very long, is that means its resolution is very low? But why it says the interference is capable of very accurate (nanometer) measurement?

What means distance can be measured by phase difference? Two coherent sources differ by 2pi can be said in-phase (phase diff zero) right? Phase difference 0.5pi same with phase difference 1.5pi right? Then how to measure distance?

Why coherent interferometry suffers from a 2π ambiguity problem but low-coherent interferometry not?

Why OCT resolution is given by (2ln2/pi )*coherence length?

Any references for the applications of both interferometry?

2006-08-30 23:00:55 · 1 answers · asked by LJ 2

plastic pipes used for drinking water distribution lines

2006-08-30 22:25:16 · 6 answers · asked by MANU 1

2006-08-30 22:06:16 · 2 answers · asked by Bazza66 3

where exactly do metallurgists work?What do they do? Some say they work in mines together with mining engineers.

2006-08-30 21:31:41 · 3 answers · asked by kwarashev 1

2006-08-30 20:54:34 · 2 answers · asked by Anonymous

2006-08-30 20:44:44 · 3 answers · asked by Anonymous

Tell me also about The chemical engineering branch of NIT Warangal

2006-08-30 20:01:22 · 3 answers · asked by Kesav S 1

May be some one can pass me another registration handle and password.

2006-08-30 19:30:54 · 1 answers · asked by nazim U 1

2006-08-30 17:45:50 · 5 answers · asked by t3t 2

I am building a commuter boat with two engines for cruising across a large harbour (5 miles wide). To make my first prototype, I was thinking about buying two identical canoes, connecting them with a platform, keep about 1m of space between them, and put two seats onto the platform. Speed would be about 10 knots max, and the water quite still (harbour). The boat's upper body will be a tent tarp over fibreglass rods, like an igloo tent. Will that cruise and maneuver OK, or am I going to be in trouble?
Thanks.

2006-08-30 16:08:59 · 3 answers · asked by Tahini Classic 7

what is pig tail of laser diode light source?

2006-08-30 15:27:13 · 3 answers · asked by Anonymous

I am building a zero-emission power boat (10 knots, range 25 miles), and I don't want to use batteries. So I have decided to use a flywheel, which will be wound up by a wind turbine. Only problem is: You can't just walk into K-Mart and demand one. Does anybody know where to get these things?

2006-08-30 15:20:55 · 4 answers · asked by Tahini Classic 7

I am making a science project and the device needs to run for a very very long time without wearing out. How can you tell which electric motors last longer? Are there industrial motors that will last longer than hobby type electric motors? Are "stepper" motors long lasting? Also, how do you determine what size motor is needed for a specific task?

For this device it will only move a fraction of an inch ... but it will need to lift something that is fairly heavy.. a couple ounces maybe.. straight up on a track-like construct... over and over for a long long period of time.. years -- or as long as possible.

2006-08-30 14:25:54 · 5 answers · asked by Anonymous

Why are ballons tie in between two tower-size Antenna wires along the freeway?

Are these ballons there for a reason?

2006-08-30 14:06:22 · 3 answers · asked by cchiu 1