A microphone turns sound into electricity, that wave is modulated into another waveform such as pulses of 1s and 0s. An oscillator is used to to generate a carrier signal at some frequency such as 2.4GHz for wifi. The modulated signal is then combined with the carrier using a mixer and send through an antenna. I'm not an expert on communication but that's the basic process. You'll want to pick up a book on communication theory if you want to learn in depth.

>>4869

All the fun of taking the computer with you!

There is no typical engineer. You can find an engineer in any position higher up in industry and also outside of it.

Since so many people appear to be on here that know about this.. what's finding a job like? Easy/hard? I'm software...

>>4955

somewhat hard to find a job, very difficult to find one you enjoy (unless you love managing databases of info you don't care about)

>>4962
somewhat hard for software? Is the same true for CS?

>con'd

I like Environmental because I really see potential growth in this field, almost exponential for the next few decades with the shift to green movements and alternative sources of energy.

Petrochemical is another on my list because, well lets face it, this is like working with black-liquid gold. If I choose this I would be able to go and search for employment in the Oil Sands in Canada (I live in Ontario), and would mean a good salary, being out in the field, as well as riding the last wave of fossil fuel profit before this becomes a null subject.

Mining Engineering interests me because of a network of people I know in Africa who are involved in Gold Mining in large companies like Perseus and Newmont, as well as two family friends who are currently operating a small to medium scale operation. I was there for 7 weeks recently and see potential for me here as well.

Biomedical I believe is a good choice as I can use this for Pre-med, as well as this field seems to be one of the topics for this century. I personally see artificial limbs becoming better than the real thing as well as practical (think Episode III), so this has a few vectors I could translate to.

Nano because fuck it it is interesting. Everything on a miniature scale like computers, electronics, being able to find better ways to assemble textiles and fabrics etc..

...

>>cont'd

...So as shallow of some of my reasons seem to be, it is just a rough framework for what interests me. Some I favor more than others, but if any E-non (Engineer/Anonymous) out there can shed lights on these fields and what they truly entail I would like to thank you in advance.

Pic VERY RELATED

In the US, you can get your masters and Phd in anything, regardless of your undergrad IF the program will accept you.

Here at the university of texas it's one department, the electrical and computer engineering department, and the first two years are exactly the same, after that you can choose to pursue a specialization in computer engineering or electrical engineering. And within those two paths there are further paths of specialization or you can mix.

At BCIT we have a Electrical and computer engineering technology program, it has a common first year then you can either choose to take one more year in a specialization or take another 3 years and get your bachelors of electrical engineering

>>4916
same here at UNT

>>4913
Computer engineering = Electrical engineering and Computer Science

EECS

>>4941
Badly drawn circuit is badly drawn. What's with the ±Vx by the 4kΩ resistor? And that ◇Vx in the middle?

>>4944
Not sure if troll.

http://people.clarkson.edu/~jsvoboda/eta/CircuitElements/vcvs.html

>>4944
Lol.

Anyway, I just got frustrated, and tried solving it as if the Vx source was oriented the opposite way. Submitted my answer.. and got it right. I guess whoever made the image just fucked up.
nb. I solved it.

>>4945
But that's my point. The ◇Vx should preferably be next to and parallel to the control element, and if the control element is that 4kΩ then it looks to be the wrong fucking polarity. The way it's drawn puts the node between the 3kΩ and the ○3v at the same 8v as the top of the 4kΩ (pic related), assuming it's unity gain. And that's a big, fat NO. And we're assuming unity gain because it's not specified and it damn well should be, even if it is, in fact, unity gain.

Like I said before: Badly drawn circuit is still badly drawn.

>>4948

> tried solving it as if the Vx source was oriented the opposite way.

Well yeah, because it CAN'T go the way it's drawn. See above.

Whoever the fuck is assigning you this homework isn't doing their own fucking homework.

reinforced concrete, yeah...

DICKS EVERYWHERE

Most of them. They all have some concrete in them, but some less than others.

>>4886

>most of them

all of them.

Second year Aerospace engineering major here.
About your second question:

>2) How hard is the math? Is it on high school level? Or maybe like a physics or even a maths study?

The math itself isn't so bad. Calc 1 and 2, i felt, were pretty straight forward. Vector is basically Calc 1 and 2 with more variables and a few more concepts that wouldn't make sense in 2D.
But the science classes are pretty tough (with the concepts and all).
Physics is pretty demanding. Do all the homework and read the book.

Go to the website of the university you're planning on going to and see if you can find a required courses list.
Then try to get a rough understanding for what the classes are going to be like.

I'm at the UofA so this is what I have to do
http://ame.arizona.edu/undergraduates/files/ame_curriculum_2010-2011.1300213262.pdf

>>4934
If I understand it correctly, Calc 1 is pretty much the same as we do in school - which is totally doable if you learn enough. How much harder is Calc 2?
And on which level the chemistry part is?

>>4935
Calc 1 is just derivatives and a slight introduction to integration.
Calc 2 focuses more on integration (methods and uses) and it also covers sequences and series, Taylor approximations and some differential equations.

You University might break it up differently, but that's what will be covered.

Chem 151 and 152 are both general chemistry and cover a broad range of topics.
I felt Chem 151 was more difficult than high school chemistry. Most people in that class thought so too.
I didn't take Chem 152. I took MSE 110 (Solid State Chemistry). It was much easier and much more relevant to my major, but I heard 152 was pretty difficult.

>>4935
The math will be more difficult, most certainly. If you can do the math well enough, then you need to focus on the applications, such as Thermodynamics, fluid mechanics, and materials. I've seen kids be great at math but get crushed by their other core classes.

As humanity advances into space, we will need more and more aerospace engineers. If you have the right stuff, you can do it.

Calculus 1-3 are pretty easy, I got A's on all of them, it wasn't until Differential equations things got a little hairy, I'd say how I did, but I'm in it now.

Physics is probably going to be the worst.
Make sure you can get into the supplemental classes offered (if any) for your physics and focus on the application classes. Straight math is never really that hard, it's all pretty recipe based, but application blindfolds you and asks you to point out the pieces based on how they feel, and then use the recipe.

What about using pulsed lasers instead? I think that would be pretty awesome

>>4907

OP here, I like your thinking. Assuming an IR laser is feasible for vaporization pulsing might be a good method of temp regulation.

>>4917
My god! Would this really work? I'd seriously be looking in to that, OP.

ENJOY YOUR RADIATION CANCER FAGGITS!

>>4912

> Electrical Engineering is pure math, while in MechE you have to draw stuff.

EEs draw stuff too. Like circuits.

> Electrical Engineering attracts people with excellent work ethic

EE is one of those fields where OCD can really work for you.

>>4912

>and/or mild Aspergers

lolwhat, maybe computer science, but EE is on average pretty alpha.

>>4922

dude, don't bring that four chan alpha/beta shit to the engineering board

>>4923
I'm sorry, it's just that this assburger crap thing has gotten out of hand on the internet, plus it seems to be an american thing only.

>>4788

>In general I'd say from hardest to easiest, biochemical/chemical, mechanical, civil, electrical, computer science, management.

You seriously picked computer science as one of the easiest engineering disciplines? Have you ever actually written any real computer programs?

You and I may be different breeds of people. I know to get through my degree (BSEE) while taking 5 classes, 3 of them with labs, I had to pretty much sit down at the end of each week and figure out everything I needed to do. If I was doing badly in a subject, I blocked off time to study that subject. If I did poorly on a test, I allocated triple the amount of study time for the next test (not because that was accurate, but because it would make sure i did well next time). I went to the clubs the smarter people in class went to. I went to study sessions with those same people. I studied at home on top of it.

There were some whole semesters that I didn't really go out and do much, and some weeks I was actually at school 80 hours a week. The best thing to do is not get overwhelmed by all of it. Instead of thinking and stressing about how much you have to do, figure out about how long it takes you to do 1 thing. I would just put out graph paper and block out weeks at a time and fill in my class schedule, and then fill in where I had time to do stuff so it would all get done before it was due.

By doing this, I could no longer procrastinate. There was always stuff to do and if I didn't do it then, I knew I wasn't going to get it done. That might stress some people out, but really, it was freeing to not have to worry about it, knowing that there really was not time to go back and do it. It removed a lot of the boredom->procrastination problem also.

And you can do it. It may take a lot of effort, but what I learned in getting my degree is that the people who did the best were not always the smartest, but the ones who worked the hardest and made sure if they didn't understand something, to go to professor hours or group study sessions and find somebody who did and demand it be explained to them until they understood it. Don't get frustrated that you don't understand something. Become comfortable with that feeling (because that's really how you'll feel about almost everything in life anyways), and seek to rectify your lack of understanding whenever possible.

This works if you LOVE what you are studying. You say that you love math when you understand it. Just stop there. Do n…

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>>4919

thank you

Computer Engineering, or Electrical Engineering. Either one, but CE has a lot more to do with computer science and programming.

>>4782
And training for that specific role can be WAAAAAAAAAAAAAAAAAAY cheaper.
There are community colleges out there that offer acoustics courses and I doubt the math is nearly as intense as that of a mech engi. They'll make you learn fluid dynamics if you go mech and that's some harsh stuff.

>>4782

yeah my dad told me if id be in for it if i wanted to be an engineer... its hard stuff to learn, and my grades where not the greatest.

and i guess ill have to start saving money... gotta find a better job though -.-

>>4784
Just go for your bachelors ME it and stick through the wash out courses. Seriously, after the first 2-3 semesters, it's still hard but they're not trying their damndest to make you fail out anymore because you'll be accepted into your respective disciplines by that point.

>>4785
If your heart is really set on ME despite it being a hell of a lot more than acoustics and the like take your math and physics classes at a community college and transfer them in, of course making sure they will be valid to transfer first.

Calculus and Physics are where our uni weeds out all the unprepared.

I dumpster dived for subwoofers. (at a place that did car audio)