Engineering - September 2007

I'm trying to make my own keyboard with many less keys than a conventional one. It would only have about 10 keys. I have most of the hardware problems figured out. Now comes the part about interfacing it with the computer. Could I have each keypress event send power through a specific resisitor, which would send power to a capacitor? The power would then be sent through the data channel of a serial cable and the pulse would be measured in terms of time by a program I will write. Is this at all possible or would I absolutely need to buy an ADC. If I used another channel besides the data line in the serial cable, would I be able to avoid an ADC? Thanks a lot in advance. Please either answer here or email me at legsmacgee@yahoo.com!

2007-09-09 06:26:28 · 4 answers · asked by Legs M 3

I have to make a fluids title page for our unit on fluids, I'm in the eighth grade if that helps. What should I put on it because I really have no clue since she just said we're starting fluids, make a title page. Any help appreciated!

What should I put on my fluids title page?

2007-09-09 06:17:51 · 2 answers · asked by Anonymous

2007-09-09 06:07:52 · 4 answers · asked by Anonymous

2007-09-09 06:05:11 · 3 answers · asked by myself01 1

2007-09-09 04:51:41 · 3 answers · asked by °æÁø À 1

2007-09-09 04:39:57 · 1 answers · asked by Anonymous

http://www.youtube.com/watch?v=Bx1E2B5oAEs

Apparently, the media has told us that when steel framed
buildings get very hot, they EXPLODE VIOLENTLY just like
in a controlled demolition, so that all their steel columns tear
apart over dozens of floors (even floors that were not on fire
can even explode??? Why?) converting hundreds of
thousands of tons of steel into shredded metal or red hot
motel metal for over 6 weeks, and turning very strong concrete
floors completely into fine powder... EXACTLY like a well
planned controlled demolition!

Powerful stuff, this "jet fuel" (or kerosene)... even just a few
small fires on a few levels, can TOTALLY LEVEL giant
skyscraper buildings! Take a look at the evidence that air
fires, fed by jet fuel, can completely pulverise skyscrapers,
without the need for any explosives!

Look at this proof that jet fuel air fire can MELT STEEL!!!

Amazing!

http://www.youtube.com/watch?v=Qa7PN-8T2VY

http://www.truth911.net

.

2007-09-09 03:50:42 · 8 answers · asked by Anonymous

Hello mates, my question is that where can I find neodymium magnets that is already in my home, office or school? Can it be in a hard disk? Can it be in a Computer Monitor, TV? Please help, I need it for our science exhibit to show a homopolar motor, I don't like buying through the internet....

2007-09-09 01:42:37 · 3 answers · asked by Anonymous

how can i get the vth of a circuit if the element to be removed is a source

2007-09-09 01:05:46 · 4 answers · asked by silence 1

In Algebra, there are formulas. For ex: a^2 -b^2 = (a+b) (a-b) which can be styled as "software" in Computer. If you apply the formula to 103x97 = (100+3)(100-3)= 100^2 - 3^2 = 10000-9 = 9991, you get a faster answer. This is called "application software"
What are your views on this.

2007-09-08 20:16:44 · 6 answers · asked by LAKSH P 1

2007-09-08 17:23:01 · 4 answers · asked by roytia 1

2007-09-08 16:03:19 · 2 answers · asked by David J 3

The cars that race in NASCAR have Fuel Cells, what does this mean?

2007-09-08 13:25:07 · 1 answers · asked by Yahoo Sucks 5

It seems like it should just stop immediately when the flow of electricity is cut off. I was hoping someone could tell me more about the physics (of radio waves and/or electricity) that are involved.

2007-09-08 12:50:12 · 9 answers · asked by guiderock 2

What is more damaging to the ears?

80 decibels with headphones or 80 decibels on a regular stereo. Or do they both damage the ears exactly the same amoung?

2007-09-08 12:35:23 · 3 answers · asked by bobo 2

Often in fiction there are secret headquarters that are completely self contained. What kind of electrical generators, in reality, could be operated and sustained without the knowledge of people within the vicinity of a "secret headquarters"? I ask this because I was wondering how feasible this is in real life with existing technology.

What might work and how might it work?

2007-09-08 11:50:38 · 4 answers · asked by Yahoo Sucks 5

I need to solder something, but i don't have a soldering iron, or any expirience soldering stuff...

I wanna know if there's any way to do what i need to do without the iron, using household items or something...

2007-09-08 11:33:24 · 7 answers · asked by BallerBaller 2

What is an example of

- Wave Communication?
- Telecommunication?
- Graphic communication?
- and machine-to-people?

2007-09-08 11:31:44 · 2 answers · asked by LiveTheLife YouLove ღ 3

2007-09-08 08:24:11 · 3 answers · asked by matt_sorrentino 1

2007-09-08 07:47:37 · 12 answers · asked by twinkle 1

A) a vector from C(3,2,-7) to D(-1,-4,2)
B) a unit vector at D directed toward C
C) a unit vector at D directed toward the origin.

The answers are
a) -6.66 -2.77+9 b)-0.59+0.21-0.78 c)-0.90 -0.44
But i don't know how they get them.
Can anyone please show me?

2007-09-08 07:21:12 · 2 answers · asked by su 2

2007-09-08 07:08:05 · 4 answers · asked by Adrian N 2

I am an electrician and have a side job removing a timed meter that shuts off power to the panel controlling heating and cooling during peak hours. The system is a 200 amp meter back to back with the lighting and outlet panel, with a line feed to a second meter and timer back to back with the heating / cooling panel. The customer wants the lighting panel, which is very outdated, and the timed disconnect removed. This means the meter and panel will now be about 2 and a half feet apart. I plan to pipe out the side of the meter and LB into the back of the panel, but I couldn't find the distance requiring a disconnect in the codebook. I think it's four feet, but of course I need to be sure. Electricians, please answer.

2007-09-08 06:51:15 · 4 answers · asked by amatakir 2

Can some one give me some examples please. thanks

2007-09-08 05:36:18 · 3 answers · asked by matt_sorrentino 1

I need a strong plastic, available in sheets, that is not transparent, (polycarbonate is only available tinted/clear).

2007-09-08 04:08:34 · 1 answers · asked by basilb101 3

2007-09-08 02:42:28 · 5 answers · asked by nithya 1

iam using FSK with 315MHZ frequency and the data rates is 9.6kbps i dont know how they calculated,whether bandwidth matters?

2007-09-08 02:24:53 · 2 answers · asked by Anonymous

2007-09-08 01:06:47 · 1 answers · asked by roberto a 2

I know this may look funny and non-sense to many. But I really have tough time in addressing my testing equipments by their brand name and model number. I need ur help in naming them in a simple way those can be understood globally. I have given the eqpments below. Pls give me some names those matches the letters.

V series (6 machines)

PK series (3 machines)

D series (2 machines)

M series (2 machines)

T series (5 machines)

E series (2 machines)

S series (4 machines)
------------------------------
One sample for ur reference: using the solar system
V = Venus

D = Dione

T= Titan

P = Pluto

M = Mars

E = Earth

S = Saturn
This looked interesting. But I wud appreciate if someone can gimme a better list....

Really THIS IS NO JOKE !

2007-09-08 01:00:21 · 2 answers · asked by Anonymous

i cant understand about its design.. i want to do project in it..

2007-09-08 00:35:01 · 4 answers · asked by Anonymous