Engineering - May 2007

i already went to howstuffworks.com but i need more detail, i already know that it takes blood-oxygen saturation (SpO2) level and pulse-rate, what i need is how the SENSORS inside work. thanks!

2007-05-11 18:07:43 · 1 answers · asked by Rambo 1

2007-05-11 15:42:42 · 1 answers · asked by sni 1

I need to built a heat treatment of metal components to heat up to 2200 degrees F in non corrosive. Must work in electrical power and must be rotary. The vessel should be a combination of annealing, stress reliving and normalising. Preferred material construction should be Stainless Steel. (Material specifications say that Normal stainless steel is not suitable) Can you assist me to source out atleast the material in Stainless steel family .

2007-05-11 14:46:45 · 2 answers · asked by Srinivasan M 3

The cart has a "live" axle thats gonna turn anyway so why cant I rig a pulley to connect it to an alternator and use it to extend my range? I do not expect the cart to run forever, I know perpetual motion is impossible. I just wanna get a few extra miles per charge. I have been told it wont work can someone explain why?

2007-05-11 13:48:00 · 5 answers · asked by shahborn 1

I have to convert an air volume from m(cubic)/hour to CFM. It's an oven exhaust duct connection in a restaurant. The manual is not English. I need to know how much air their 1000 is in CFM. Can you help?

2007-05-11 13:15:22 · 3 answers · asked by Sounds of Ed's football game 3

how should it look like,
what materials and how and why does it go fast

2007-05-11 12:50:10 · 1 answers · asked by Anonymous

I know they aren't supposed to enter the recycling bin, but of course they will.
The volume of the material must be such that effective manual removal of such 'contaminants' is impossible, so how do the machines do it?
No one would want staples in their recycled loo-paper(!)
or the remains of sticky-tape in the middle of their daily newspaper.

2007-05-11 09:30:34 · 7 answers · asked by Quasimojo 3

how do they function in a circuit?
is this correct:
the NPN 'eats' a small current through the base, so that a large current can pass through the emitter and collector or is that the PNP transistor that has that function?

2007-05-11 09:15:36 · 3 answers · asked by liam_hsart 2

2007-05-11 06:55:49 · 4 answers · asked by m@m 1

A designer generally undertakes the following tasks during a design process: Specifies requirements; Generates possible solutions; Evaluates the solutions in terms of performance or other factors. Explain why these tasks are often performed repeatedly in developing a design.

2007-05-11 06:25:39 · 3 answers · asked by jrh_alhrof 1

2007-05-11 05:05:41 · 1 answers · asked by rubens 1

These are used for Air Conditioning the buildings .

2007-05-11 03:14:09 · 4 answers · asked by bruno 2

i am an engineering student and very weak in machine drawing.i want to know how i could be able to learn drawing online so that i can do well in exams

2007-05-11 02:32:21 · 1 answers · asked by raju 2

I have to build a model rollercoaster for my 8th grade science project, but i need to make the cart move by itself using a hydraulic system. My teacher said i could use a syringe attached to another one with a tube filled with water, which when you put pressure on one syringe, the end of the other one pushes out. I've decided to use this to get the cart going, but i'm not sure how i will keep it moving throughout the whole rollercoaster by itself. Does anyone have any ideas? (using a hydraulic system, in other words a system that uses water to make pressure.) thx

2007-05-11 02:26:29 · 4 answers · asked by lil-dancer-05 1

2007-05-11 02:22:28 · 2 answers · asked by syasya 1

If I have a 1" pipe, that is 1 foot long, that can hold .04 gallons of water, how fast is the water flowing at feet per second if water is flowing at 50 gallons per minute?

2007-05-11 01:46:22 · 4 answers · asked by Anonymous

2007-05-11 01:39:23 · 3 answers · asked by deepak_8584 1

2007-05-11 01:32:26 · 4 answers · asked by deepak_8584 1

The Res-Q-Rail brake operates by pressing on the railway track, rather than on the wheels of the carrier. Explain the advantages of this.

2007-05-11 00:48:52 · 2 answers · asked by jrh_alhrof 1

i want to know how to open locks without breaking it if i don't have a key. can you suggest any book that i might read for instructions, or maybe, if you are a good person who knows how to, then maybe you can share it with me.
thanks,,

it's just that i think i need the skill for my ideal job,, (not a thief ok)

2007-05-11 00:36:51 · 3 answers · asked by Anonymous

i want to know how to open locks without breaking it if i don't have a key. can you suggest any book that i might read for instructions, or maybe, if you are a good person who knows how to, then maybe you can share it with me.
thanks,,

it's just that i think i need the skill for my ideal job,, (not a thief ok)

2007-05-11 00:32:41 · 2 answers · asked by Anonymous

2007-05-10 22:57:13 · 4 answers · asked by Felix 1

i should go for which type of compressor for trouble free operation.

2007-05-10 20:20:55 · 1 answers · asked by hcl d 1

2007-05-10 19:01:01 · 24 answers · asked by hifliers 1

2007-05-10 18:32:40 · 5 answers · asked by Anonymous

would steel wool do the job?

any other options?

2007-05-10 18:31:07 · 1 answers · asked by Anonymous

2007-05-10 17:12:09 · 6 answers · asked by guillermo b 1

2007-05-10 17:07:23 · 5 answers · asked by Anonymous

a person

2007-05-10 16:41:40 · 1 answers · asked by mj you are always in my heart! 4

2007-05-10 15:27:22 · 1 answers · asked by bobzhang13 1