Engineering - August 2007

I'm trying to build an electronic gadget that bleeps when another remote device moves out of a pre fixed range, ie 5- 10 metres, is this possible? What would the main components be for this?

2007-08-15 06:00:38 · 4 answers · asked by thedaveidentity 1

How can we convert the scanned copy of a design and convert that into a vector file. I know converting it into vector will save time and effort, instead drawing from the scratch.

2007-08-15 04:50:59 · 3 answers · asked by Pavan 1

What are volts i know amps i know ohms and i know watts and what they all are a measurement for but what do volts measure if they measure voltage what is voltage.

2007-08-15 04:44:12 · 8 answers · asked by 1999 Nissan Skyline GTR Vspec 5

2007-08-15 04:28:51 · 5 answers · asked by stewcat123 1

2007-08-15 04:22:26 · 1 answers · asked by Anonymous

hi guys, i just want to ask opinions/suggestions on what project should we make, related to mechanical engineering. It could be re-engineering, modifications to present etc, to solve certain problems encountered by normal people. i just need help, badly. Thanx alot.

2007-08-15 03:54:06 · 2 answers · asked by perry 1

basic principle

2007-08-15 02:54:28 · 2 answers · asked by quick and clever 1

I know the steel is rated high yield (HY) 80 or 100 thousands of pounds per square inch, but how thick is it? I assume it must be pretty thick, so how do they bend and weld it?

2007-08-15 02:09:09 · 3 answers · asked by Jonathan P 1

We r using CI for conc in our batching plant. The CI cames in Plastic storage drum. From few days the drums are blasting one by one.
Anybody can tell the reason? My ID is p.maji@rediffmail.com

2007-08-15 01:07:35 · 1 answers · asked by Prasenjit M 1

How about an engineering perspective on this question I posted in Medicine?

When the huricane hits and there is no safe public water, how about putting some bottles of water in a car with the windows rolled up to pasturize it?

Please critically evaluate this idea. State reasoning clearly.

Here is a link on pasturizing water:
http://solarcooking.org/pasteurization/d...

And here is a link on how hot it can get in a car:
http://www.injuryprevention.org/states/l...

What factors would maximize the temperature. Which angle relative to the sun? Shades on the north side?

2007-08-14 22:39:05 · 3 answers · asked by skip 4

2007-08-14 20:56:45 · 1 answers · asked by gullveer_r 1

Think it for yourself........
Extensive use of the electronic gadgets and no use of our mind.

2007-08-14 19:38:14 · 9 answers · asked by Karan Shah 1

What are some examples of flywheel devices being used in toys and other machines? And what is it that makes a flywheel so special?

2007-08-14 18:23:55 · 5 answers · asked by spacebendingguy 1

I broke my glass("tabacco") pipe into 2, the breal is clean and smooth would it be possible to melt each peace and put them together??
Or, Is there a glue that can with stand heat with out detatching

2007-08-14 18:14:51 · 4 answers · asked by Tk 1

Turbine rating 500 MW, 3000rpm and TG is connected to the grid. Turbine inlet steam pressure is 160 kg/cm2 and 550deg C.

2007-08-14 18:05:16 · 4 answers · asked by SUJAY 1

2007-08-14 17:56:27 · 4 answers · asked by SUJAY 1

2007-08-14 16:28:11 · 3 answers · asked by anil k 1

Getting tired of replacing batteries in some appliances. How do I calculate what capacity (mA) power supply I need.

I have 4 C batteries in series to it is 6v. however how many mA do I need to shoot for?

2007-08-14 15:28:36 · 7 answers · asked by charlie 1

I understand the concept that ground is the zero voltage reference point with respect to the rest of the circuit, but with the ground disconnected, will the circuit continue to function?

I was playing a bit with an small circuit, but I found out, even with ground disconnected, the circuit continues to work? Is this really the case or not? What's the reasoning behind this? thanks.

2007-08-14 15:26:42 · 5 answers · asked by Mystery of Life 2

err....I've had a mind blank..care to help??

2007-08-14 15:05:31 · 2 answers · asked by PW_AD_TH 1

Can I lay my Argon tank on it's side and still be able to weld? Will the Argon tank still work on it's side?

2007-08-14 14:53:20 · 3 answers · asked by oodlesoanimals 5

i want to buy a 1ton flat bed truck an let other people drive it for me through venture or ace i need to know how do they pay you is it by mile and how much also do i have to recive the calls or can they go directly to my driver and how much should i pay my driver an do i handle the paying or does the company im leasing through pay them

2007-08-14 14:50:11 · 2 answers · asked by scully_steve 1

2007-08-14 14:48:49 · 15 answers · asked by anil k 1

With a craft designed to with stand heat of re-entry why is foam being such a problem? Any "rocket scientists" out there?

2007-08-14 14:11:47 · 5 answers · asked by tgeorge12000 4

i have a vacuum i dont use and i want to use the motor to build something, any ideas?

2007-08-14 13:48:34 · 3 answers · asked by georgia 2

2007-08-14 12:23:53 · 3 answers · asked by hari n 1

What I would like is to be able to take notes off of an EPROM and convert them to analog and be able to synthesize sounds in an analog way, not just ADSR (Attack Decay Sustain and Release) but the other frequencies that make up an instrument sound.

2007-08-14 12:04:18 · 1 answers · asked by lord_andys_new_id 1

We are working on a new aluminum fixture. It is basically an aluminum
spine with many 6061-T6 pins sticking out. Currently we drill the
holes inside the spine and hammer the 5/32" 6061-T6 pins inside. Is
there anyway to cast aluminum with many 6061-T6 pins embedded (they
will stick out after the casting)?

Thanks........... Ken


Opportunities are never lost. The other fellow takes those you miss.


| Torrey Hills Technologies, LLC |
| www.threerollmill.com |
| www.torreyhillstech.com |

2007-08-14 10:51:24 · 7 answers · asked by Anonymous

What times do a systems engineer work? Do they start work early..end late...do they work on weekends normally..or do they work overtime..what is the usual overtime rate? To do with vacationing..are they given a number of days off for the year..or do they have set dates to go on vacation? Hope my questions can be answered:)

2007-08-14 10:46:57 · 3 answers · asked by Anonymous

I hooked up a variac and got up to 510 volts but the I need 600 volts. I was thinking about hooking up another variac in series with the first one. Would that work? It won't blow up, will it?

2007-08-14 10:40:57 · 3 answers · asked by Anonymous