Engineering - April 2007

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2007-04-03 07:53:20 · 4 answers · asked by got my id from a crackerjack box 2

2007-04-03 07:38:09 · 3 answers · asked by Sajid 1

2007-04-03 07:22:18 · 4 answers · asked by lmason_60201 1

I have seen it on aluminum tubes for bicycle trailers, outdoor gear, collapsible shovels, baby jumpers... the two tubes are fitted so one slides over the other and this piece of hardware locks them together.

2007-04-03 06:50:23 · 1 answers · asked by Anonymous

2007-04-03 06:35:04 · 10 answers · asked by amanda b 2

I am using 2 7476 j-k master/slave flip flops, an and gate, a not gate, a 7447 converter, and a 7 segment LED. I have it all wired up correctly to count from 0-9. I have it built on a breadboard, and I am using a logic trainer to provide my +5V, ground, 1Hz clock, and manual reset switch. I cannot get the counter to reverse.
I have already built a binary 0-15 up counter, and then I made a binary 15-0 down counter by using the clock nots on the flip flops. When I try this with the ddigital 9-0 down counter, it is now working correctly. My teacher says he will not help me, so I am at a loss of what I am doing wrong. I am trying to learn, but it seems I am up against a wall. If someone could please help me out by sending schematics to my email or giving detailed descriptions of what pins to switch and why I am doing it, I would greatly appreciate it.

2007-04-03 06:31:43 · 1 answers · asked by igor27jj 1

inside the chip, we use transistors to represent the resistors. I want to know the maximum value of resistance we can gain out of a transistor inside a cihp?

2007-04-03 06:19:57 · 3 answers · asked by Anonymous

how to make an emergency traffic light prototype? and did anybody know about traffic lights sequence when at 'cross junction'.And what system is best for me to use; maybe PLC or Programmable Microprocessor? How does it work on the system? and how's the circuit diagram?Lastly i hope answer will be the cheapest on its' budget.

2007-04-03 06:11:04 · 1 answers · asked by anasthrash 1

2007-04-03 06:11:00 · 2 answers · asked by Anonymous

I love construction and would really love to go to school for engineering but I am scared of heights. When I was working construction I could never walk 2x4 walls or get close to the edge of a roof, so that is why I was wondering if it would be a waste to go to school in civil engineering or engineering tech?

2007-04-03 05:15:52 · 3 answers · asked by nhale24 1

i hav to do a small science project with tat

2007-04-03 04:53:25 · 5 answers · asked by Akilez 1

I am doing a project. My basic idea is to use the repulsive force of the magnets and make an elevator. I will have a permanent magnet at the bottom and top which can rotate. To the lifts bottom and top I will attach magnets. For the lift to move up the magnet at the bottom and the magnet at the bottom of the lift are made to repel and the the magnet at the top and the magnet at the top of the lift is made to attract.To make the lift come down the top magnet is rotated so that it repels and the bottom magnet is rotated so that it attracts.For moving down i will use a break system so that it can come down slowly. Can this work??

2007-04-03 04:45:15 · 3 answers · asked by Shashank j s 1

2007-04-03 04:38:17 · 11 answers · asked by Anonymous

2007-04-03 04:03:27 · 2 answers · asked by help? 1

2007-04-03 03:34:08 · 3 answers · asked by iam working in prvt job 1

what is it?what are tv standards?how is scanning and sychronising done?please help

2007-04-03 03:07:13 · 1 answers · asked by Anonymous

2007-04-03 02:48:59 · 1 answers · asked by yas 1

2007-04-03 01:01:15 · 5 answers · asked by ima'to 1

I am designing a water heater and need to know what calculations I need to do before my design.

2007-04-02 19:59:45 · 4 answers · asked by automan3042 1

2007-04-02 19:37:28 · 4 answers · asked by JOSE P 1

Why couldn't you move a school or lift it off the ground even if you had a big enough lever to do so and u had all the materials and supplies for the lever?

2007-04-02 18:08:56 · 2 answers · asked by Anonymous

2007-04-02 15:56:31 · 5 answers · asked by Anonymous

2007-04-02 13:53:25 · 2 answers · asked by Christine 1

2007-04-02 13:42:35 · 1 answers · asked by Justin S 1

It has be something really amazing.

2007-04-02 13:39:47 · 4 answers · asked by test u 1

Probably I am the first to float this idea EVER..but that would be very interesting to see the human voices running the automobiles and other machines.

Again just a thought ...

2007-04-02 13:34:55 · 5 answers · asked by test u 1

2007-04-02 13:09:18 · 3 answers · asked by Paranthu 1

float a card?

2007-04-02 13:08:26 · 3 answers · asked by Anonymous

Other than the heat issue whats wrong with electrically heated steam cars? Electric cars create resistance and heat in motors. Hydrogen cars are a bit far off. Gasoline is only 60-70% efficient and destroys the enviroment. Steam engines are known for being 85-99% efficient and because of the steam median resistance in the wiring wouldn't be a problem.

What's the problem?

2007-04-02 12:55:47 · 3 answers · asked by imajiknation 2

2007-04-02 12:47:14 · 8 answers · asked by Anonymous