engneering field

U

Uncivil

Seaman Apprentice
Joined
Apr 22, 2007
Messages
37
Re: engneering field

I want to reiterate the comments about nailing your mathmatics fundamentals! Do whatever extra work you can to absolutely know Algebra and to a lesser extent Geometry and Trig. Calculus is all about rules and formula manipulation. If you are weak in Algebra you will struggle. Take it from someone who learned the hard way. I was very weak in math and it showed when I made it in to Engineering school. I struggled in all the math courses. However I will say that hard work and dedication can overcome weaker fundamentals. I managed to get through the first two years and then managed just under a first Class (80%) average in Civil engineering in the last two years. Good Luck.
 
ezmobee

ezmobee

Supreme Mariner
Joined
Mar 26, 2007
Messages
23,767
Re: engneering field

FBPirate95 said:
As a rule of thumb, if you struggle with math, or do not do well in Calculus, I STRONGLY recommend another degree or at least postpone the pursuit until you get your math under control.
Click to expand...

^^^^As a failed EET major I reposted the above for emphasis :) I did four years majoring in EET. Managed to get an associates degree somewhere in there. Junior and senior year EVERYTHING became calculus. Not just the math classes but all the engineering classes as well. And I couldn't hack calculus. After failing this one heavily calculus-based class for the second time I decided to call it quits. I got involved with web development and ended up going back to school a couple years later for computer science. That time I had a 3.8 GPA.

Good luck with whatever you decide. Don't go to school undecided. College is too expensive a place to "find out what you want to do with your life". No shame at all in working for a few years and then going.
 
J

Jeepster04

Chief Petty Officer
Joined
Jan 5, 2009
Messages
481
Re: engneering field

Spelling just isnt something that engineers can do it seems. Im a senior in Civil Engineering and I can spell worth a lick. If it wasnt for this spelling check in Firefox I'd be in trouble. :)

And if you do not have a good background in calculus and/or physics by all means do not think you cant get through engineering. My back ground in both of those was non-existent but I worked through all of that. Once you get through all the BS and get into your major its been a fun major for me. Still cant wait to get it over with though.

Just be prepared to not have a social life for a min of 4-5 years. :)

ehh, and that thermo. They let us choose between thermo or dynamics.. You better bet Im taking dynamics!
 
FBPirate95

FBPirate95

Master Chief Petty Officer
Joined
Apr 15, 2009
Messages
840
Re: engneering field

In thermodynamics, there are four laws that do not depend on the details of the systems under study or how they interact. Hence these laws are very generally valid, can be applied to systems about which one knows nothing other than the balance of energy and matter transfer. Examples of such systems include Einstein's prediction, around the turn of the 20th century, of spontaneous emission, and ongoing research into the thermodynamics of black holes.

These four laws are:

Zeroth law of thermodynamics, about thermal equilibrium:
If two thermodynamic systems are separately in thermal equilibrium with a third, they are also in thermal equilibrium with each other.
If we grant that all systems are (trivially) in thermal equilibrium with themselves, the Zeroth law implies that thermal equilibrium is an equivalence relation on the set of thermodynamic systems. This law is tacitly assumed in every measurement of temperature. Thus, if we want to know if two bodies are at the same temperature, it is not necessary to bring them into contact and to watch whether their observable properties change with time.[15]
This law was considered so obvious it was added as a virtual after thought, hence the designation Zeroth, rather than Fourth. In short, if the heat energy of material A is equal to the heat energy of material B, and B is equal to the heat energy of material C. then A and C must also be equal.

First law of thermodynamics, about the conservation of energy:
The change in the internal energy of a closed thermodynamic system is equal to the sum of the amount of heat energy supplied to or removed from the system and the work done on or by the system or we can say " In an isolated system the heat is constant".

Second law of thermodynamics, about entropy:
The total entropy of any isolated thermodynamic system always increases over time, approaching a maximum value or we can say " in an isolated system, the entropy never decreases". Heat energy cannot be transferred from a material of lesser to a material of greater.

Third law of thermodynamics, about the absolute zero of temperature:
As a system asymptotically approaches absolute zero of temperature all processes virtually cease and the entropy of the system asymptotically approaches a minimum value; also stated as: "the entropy of all systems and of all states of a system is zero at absolute zero" or equivalently "it is impossible to reach the absolute zero of temperature by any finite number of processes". Absolute Zero, at which all activity would stop if it were possible to happen, is −273.15?C (Celsius), or −459.67?F (Farenheit) or 0 K (Kelvin or Absolute).


Ok now everyone can cringe from the painful memories......
 
C

coolguy147

Commander
Joined
Jul 14, 2008
Messages
2,817
Re: engneering field

omg lol man wow i just had a test on this today! bio. the first law of thermo is that energy can not be created nor destroyed rather that it is converted? and second law is that the energy is always universal and constant?

heard the kelvin theory last year but didnt know it was called the third law

and learned about entropy
 
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