# What is Engeneering: Definition and 28 Discussions

Engineering is the use of scientific principles to design and build machines, structures, and other items, including bridges, tunnels, roads, vehicles, and buildings. The discipline of engineering encompasses a broad range of more specialized fields of engineering, each with a more specific emphasis on particular areas of applied mathematics, applied science, and types of application. See glossary of engineering.
The term engineering is derived from the Latin ingenium, meaning "cleverness" and ingeniare, meaning "to contrive, devise".

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1. ### Seeking Financial Benefit from Scientific Innovation: A Discussion

Hello All : hope all are fine and well : during my scientific reading i may found a way to enhance the efficiency of some sort of simple engines , now i am working on a prototype which should be ready in few weeks for testing , the question is what next ? i am interested in solid state...
2. ### Landing gear mechanism design

Summary:: I am making a landing gear mechanism, and am struggling to mathematically model it, the aim is to find the required properties for the spring for it to work. Hi can you help me with a problem, I am making a landing gear mechanism and am struggling to model it mathematically. The aim...
3. ### Engineering Thermodynamics: Pass-out Turbine Question

Hello Physics Forums, I have been struggling with this question for some time now and I'm not sure my method is correct - please see attached. Any help you can give to check I'm on the right lines would be very much appreciated! Cheers, C
4. ### Engineering Frame and Machine (engineering mechanics statics)

I have problem on this question on how to draw free body diagram. Can you please show me on how to draw free body diagram on this question ? The calculation part I think I do not have a problem with it. Thank you in advance ! I am really struggle with this question.
5. ### Engineering Calculate valve sizing to regulate the flow of natural gas

Working out as follows x= (20-6)/20 = 0.7 Fk = k / air specific heat ratio Fk = 1.31/1.4 Fk = 0.94 xT = Fk * x 0.94 x 0.7 = 0.658 because xT < x = 0.658<0.7 flow through the valve is choked Expansion factor Y Y = 1 - x/( 3 x Fk x xT ) Y= 1- 0.7/( 3 x 0.94 x 0.658) Y = 0.623...
6. ### Physics Anxious about majoring in physics — considering a switch to engineering

Hi all, I am a first year student at the University of Notre Dame, and I will be choosing classes for first semester second year in a week or so. I am currently a physics major, but am getting anxious as the time to “commit” approaches. I came in not knowing what I wanted to do as a career...
7. ### B Does a rubber mat on a device prevent static build up

Does a rubber mat on a device prevent static build up and discharge on a metal device well using it
8. ### Aeronautical Engineering or Nuclear Engineering?

How did you find PF?: Via Google Hello, I am a new member here. Thano you for having me ! Im going through a dilemma. Next year I will have to choose a subject for higher studies. I want to work in space organisations in future and I like space researches. So basically Aeronautical Engineer...
9. ### What is the Well-Known Feedback Expression for Block Diagram Manipulation?

Hello I hope someone can help me, as i am kinda stuck for the moment. As you can see, the assignment states that I need to find the poles from the closed loop transfer function. I plan on doing so, by using block diagram reduction method. This is as fare as I've come, and can't come...
10. ### Engineering Road to R&D: Electrical Engineer Qualifications & Academic Career

I am going to graduate this year with a bachelor in electrical energy engineering, i am very passionate about designing and fixing problems, i would love to work in the R&D department of some multi-national company, but i don't know where to start. What qualifications do they usually ask for...
11. ### Taking 4 difficult ENGR related classes and working a part-time job?

I am taking next semester Differential equations, University physics 2, Electrical circuits class and lab and an Introduction to engineering course at a community college and I am planning to work part time. Is it a good idea or at least doable to do those classes and take a part-time job less...
12. ### Delay and Sum Beamforming Equation Derivation

Homework Statement I have to simplify this beam form (equation 1) which simplifies to equation 2 and then finally to equation 3. Homework Equations equation 1: e^-ix((1-e^y)/(1-e^z)) where x = Beta*M_(1/2), y = beta*M, z= Beta equation 2: sin(M*Beta/2)/(sin(Beta/2)) equation 3...
13. ### Is seeing believing in physics?

I am new here and I am not going to say I have any formal schooling in physics or electrical engineering. I have been in the automotive field for almost 40 years. What I am getting at is, myself and my research partner came across a very unusual circuit about 4 years ago. We spent about 3 years...
14. ### Discovering Power Flux Distribution in Schematic with S and G Loads

Homework Statement S stands for load and G for a generator. There is an odd term used- power flux distribution in the schematic. Thats what needs to be found. Homework EquationsThe Attempt at a Solution
15. ### Software engeneering vs Software technology

I'm currently an undergraduate student in computer science and I'm tryng to figure out what is the difference between Soft Tech MS course and Soft Eng MS course. For now, i found that software engeneers are more capable to handle the "hardware" while software technology courses gives you more...
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### Solving Statics Deformation Problems: Rod Equations & Attempt at Solution

Homework Statement Homework Equations deformation=(force*length)/(elastic moduli*area) The Attempt at a Solution and since most of the variable are constants it seemed like a simple plug in problem, however it seems that my use of the forces is incorrect. unfortunately we had no examples...
17. ### Struggling In Mechanical Engineering School Need Advice/Help

I am currently about half done with my degree for a bs in Mechanical engineering from U of M. I transferred from a community college and I took all of my gen eds there like the English, history, econ, philosophy. I am in my second semester and am struggling with the physics and math mainly. I...
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### Is it possible to do this without Poission's ratio?

this is the problem as our professor gave it to us "A steel alloy bar (modulus of elasticity of 205 GPa) is 20mm in diameter and experiances an elastic deformation by applying a force along its axis (IE pulling it apart perpendicular to the circular cross section). Determine the...
19. ### Student Questions on Forces for Forensic Anthropology Research | MSc. Project

Hi everyone! I have few questions which I think might actually be simple, but I would like some confirmation if possible. Here's the situation: I am doing a research project for my MSc. in Forensic Anthropology. The goal of my project is to study the marks left on bones by bladed weapons (in...
20. ### What is a nominal load and payload in control engeneering?

Hi. I have read some books about control engeneering . In some books, there are some terms which are ambiguous to me. The parts which I cant understand is that "less mass axis(There are two axis in nanopositioning) frequency response for nomial load is plotted" and "with the maximum payload...
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### Discover the Fascinating World of Smart Materials Engineering

Who is intersting here in smart materiales engeneering
22. ### Physics for undergraduate and engeneering for graduate? how feasible is it?

My parents are kinda worried about my will to become a physicist. it is not a common course here in Mozambique and find employment could be a little bit hard (but I don't plan to work here...). everybody tells me that I should study applied or engineering physics. to calm down them I argue that...
23. ### What is the purpose and design of wire mesh on radar antennas?

Hi, I havn't posted for quite some time yet I have been reading through from time to time. I would like to ask about Radars. I wish to be able to look at a radar antena and be able to say as possible. Such as frequency ranges from the antenna size etc... Does the size of the 'Ball' in which...
24. ### Career as physicist in electrical engeneering?

I am a physicist (master, PhD) and have a job opportunity in an electrical engeneering company. Does anyone have experiences with this situation? What is a possible career path? My first impression is that people with a Masters in EE possibly outperform any physicist because of their...
25. ### (mechanical engeneering vs computer engeneering)

hi my name is ehab I am a first year collage student in damascuse university our computer programming professer ask us to do a research obout computers and technology so I choose a research that is considaring me from a long long time (who is better scientifically and is that really true that...
26. ### Biomedical Engineers: Connect & Collaborate

Any Biomedical Engineers out there?
27. ### Sound hyphosis. The engeneering part of it.

(third guy using cavemen username) Well. I know it aint physics. I am looking at the physics part of it. I heared something about modulating words into background noises or ultrasound in such manner that the subconscience hears them but conscience doesn't interpret them into words. Claimed to...
28. ### Discover the Top Engineering Types and Their Unique Specializations

Hello I admit it. I am a sore newb on this subject and I really haven't taken the time to do the research. Now I know there's many types of engeneering out there, but I'd like to find out which one interests me the most. So could you please name the most know engeneering classes with a small...