Engineering Definition and 996 Threads

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. A

    Engineering Drawing velocity polygon for a press mechanism

    Hello, I'm new to the forum, I want to ask help on this problem here, above is a press mechanism and I'm tasked to draw a velocity polygon based on this mechanism. The point of contact between the two gears is A and consider it as a swivel hinge (rotating but stay still), so I guess it's O2...
  2. Wrichik Basu

    Engineering Issue with shift registers — PIPO, PISO, SIPO and SISO

    We are currently constructing shift registers in our practicals, and I am facing an issue with the circuits. Posting this in the homework section because it arose out of college (thus, coursework). We have to construct four types of (4-bit) shift registers — SISO, SIPO, PISO and PIPO. I feel...
  3. K

    Measuring the Speed of Sound in Water, Using Faraday's Law

    Hi! This project involves both mechanical and electrical elements, so I'm discussing it in this forum since I'm not sure which one it would fit better into. I'm working on an experiment in which I'm trying to measure the speed of sound through water. The approach is simple: I have a long...
  4. O

    I Uncovering the Forces on Drum Lugs: An Engineering Design Exploration

    I am currently designing an alternative to normal acoustic drum lugs and I need to find the forces that are felt by the tuning rods of a drum for the engineering background to my design. I have been able to use the 2D wave equation assuming uniform tension on the membrane and found values of the...
  5. D

    At a Crossroads Between STEM Majors (narrowing interests)

    Hey all, Long time forum lurker here. There's a lot on my mind, but I will do my best to keep it concise: I'm an undergrad chemical engineering student, just starting my junior year. I have found myself at somewhat of a crossroads concerning my career pathway: Originally, my plan was to finish...
  6. Astronuc

    NS Derailment, East Palestine, Ohio - 3 Feb, 2023 - Engineering Aspect

    Here I want to focus on the technical matters of train operation, defect detection, the accident (derailment), which is currently under investigation (by NTSB and FRA) and the investigation itself. https://www.ntsb.gov/investigations/Pages/RRD23MR005.aspx The derailment became significant when...
  7. E

    Is My Samovar Really 110V or 220V? Decoding the Resistance of the Element

    Need some help please. Bought a Samovar (electric water pot) from overseas. Seller told me it is 110V compatible but the base plate not sp clearly says 110v/220V in Russian. Seller tells me that I should not use it in a 220V outlet but when plugged into a 110V it took 45 minutes to boil 8L...
  8. filo

    Schools Need to decide whether to study Physics or Engineering

    I'm a 17 years old student and I can't choose between studying Physics or Engineering at university, any advice?
  9. W

    DO NOT throw any engineering questions at Chat GPT

    This chatbot has been getting a lot of notice lately - my son, a mech E and I were throwing a variety of questions at it, and then with a bio-chemist last nigh at dinner ( geeks - yes) - anyway. It fun but also makes you feel a little obsolete... I threw a magnetic / induction question at it...
  10. L

    Engineering Finding the right Career Path/Job Prospects in EE

    I've recently graduated from EE and was looking for jobs on the market. While I'm looking for any good opportunity that comes my way, I wanted to plan out my career path and how to achieve it in the long-term. That way, when I run into roadblocks and issues on the job, I'll be able to think...
  11. JordanBolds

    Physics From biomedical engineering to bio-physics to medical physicist

    Hi everyone! I am also very new to this PhysicsForm site, hopefully I am not interrupting any conversation with this question. I have been thinking about switching from biomedical engineering to bio-physics as an undergrad degree with aspirations of eventually becoming a medical physicist. I do...
  12. C

    Determine pump spec necessary to overcome leak

    A vacuum pump is mounted at ground level. The pump is connected to a tree of overhead pipework at a height of 20ft, connected to the pipework are 12 hose reels that can be attached to oil drain tanks. The client requests that the pump be sized so that sufficient vacuum can be achieved to suck...
  13. Pipsqueakalchemist

    Engineering Separately excited DC motor problem (Electrical Engineering)

    Hello, so for this question I know how to solve it but I still have a few questions. First when the question means it's rated at 20 HP and 600 V, it's referring to the source voltage and Pin correct? Also in order to solve this question, the rotation loss Prot was neglected. This was because at...
  14. emilmammadzada

    How to Simulate Charged-Particle Energy-Loss Straggling in MCNP5?

    How can I make a sample code or a simulation about mcnp5 charged-particle energy-loss straggling?How can I find sample examples?
  15. person123

    Saudi Arabia's "The Line" -- why?

    I just found out about Saudi Arabia's "The Line", and I don't want to mock it with my very limited knowledge (I honestly would have thought it was satire), or bring up politics behind it, or go into its lofty goals like 100% clean energy or life enhanced by AI. To me, the first question is just...
  16. H

    Engineering Struggling with a Structural Analysis Problem?

    Diagram of the problem below. I have 45 minutes to finish all parts of this question without reference material. The Mechanics of Materials section of these tests are largely Structural Analysis, which I was not taught to this level in my undergrad degree so I am teaching myself via Youtube...
  17. bigmike94

    Did you start off in Physics before switching to Engineering?

    Summary: For anyone that might have started off in physics but for their head turned by engineering I am just wondering if there’s many out there that started off in physics before discovering engineering was more for them, what made you switch? My degree is in engineering & physics and I...
  18. Al-Layth

    How do Engineers Calculate the Dimensions of their Design Ideas?

    You have a design problem statement, which gives you numerical specifications for performance, spatial constraints etc, and you have finally come up with some mechanism ideas you synthesised into a machine concept. You’ve sketched your design’s parts and the final assembly. So: How do you now...
  19. bigmike94

    Which topics are best to focus on in my spare time for engineering?

    Summary: Which are the best engineering topics to really focus on during my spare time to prepare for the real world. Im on a physics and engineering degree, but will hopefully be doing a masters in engineering, my engineering modules are all the standard broad ones that most engineering...
  20. anorlunda

    Unsolved Engineering Problem: Runaway Anchor Drops

    I presume that numerous competent engineering organizations have addressed anchor drop brake designs many times in history. Nevertheless, runaway anchor drop accidents happen again and again. Therefore, I conclude that the general problem remains unsolved. How would our PF engineers...
  21. MarwaK

    Upside down diffuser engineering

    Hi everyone, I am looking to develop a smart diffuser with a specific design of inserting the scent upside down on the device with a 'click on' mechanism possibly magnetic. My question is from an engineering perspective, what should I be considering with this specific hardware design? I am a SE...
  22. L

    Studying Should I take up electrical engineering or computer science?

    I am currently in my final year of high school in India, and slightly confused as to which course I should take. I've always been interested in physics, and would eventually like to do research in quantum computing. I'm not sure whether to take a B.S. in Physics, or engineering (a BTech) in...
  23. G

    Engineering Career advice for a nuclear engineering graduate

    Hi everyone, I'm from an Asian country, and graduated with M.Sc. degree in nuclear power engineering last year from a university in Russia. Since then, I have been looking for jobs related to nuclear engineering but no luck up till now. Seeing that nuclear energy is getting trendy now in...
  24. wyattmarshall

    Best way to self-teach Electrical Engineering and Embedded Systems?

    Summary: Trying to self-teach Electrical Engineering, Embedded Linux and AVR/ARM to make a career change into embedded systems development and I need suggestions on the best way to do that. I have a plan but I honestly have no idea if its a good one. I have been into computers my whole life...
  25. T

    Engineering project: Harvesting energy from natural water fall

    - design of a micro-turbine based on different scenarios of waterfalls - build a system that involves a battery for storing power - test in the lab I have attached a image. I know the image is not very detailed but wanting some advice on this situation. I have done some water calculations on...
  26. J3J33J333

    Choosing Physics or Electrical Engineering

    Hello, I'm trying to decide between physics and electrical engineering. I like building electrical stuff, and I like solving physics problems, but my main goal is to try to build power systems that integrate things like what can be found in this paper https://arxiv.org/abs/1401.0520. I would...
  27. A

    Engineering Systems Engineering QFD on an Aerial Fire Fighting Aircraft

    Hi everyone, I am currently taking an aerospace systems engineering course and right now, the focus is on Quality Function Deployment (QFD), which is basically a method driven by customer requirements, which can capture customer requirements and systematically convert them into engineering...
  28. A

    Requirements and systems engineering

    Hi all, I am taking a course in systems engineering and we are discussing about requirements and functional architectures. Got me wondering, for the engineers here in the aerospace, do you have any interesting examples relating to missed requirements or to requirements gathering? What about...
  29. T

    Engineering Should I study Engineering Physics or Mechanical Engineering?

    I am unsure of what career to choose. I really like Physics and Math, and I have this desire to know more about things, which is what EP has to offer. I think that EP is mainly theoretical and does not teach many practice, but I believe that I can complement this by entering groups in my...
  30. M

    Job Skills Tips for a Physics BS going into a systems engineering job?

    I was wondered if anyone could give me some tips on what to expect going into a career in systems engineering. I completed my undergrad BS in Physics last year and I have worked as a student trainee optical engineer for two years (Intermittent schedule). I just completed my first year of grad...
  31. DanialK231

    Is a nuclear engineering minor worth an extra semester?

    Summary: Since I did not start out in calculus 1 in my first semester of college I have to take an extra semester in my four years to get my bachelor's degree in Chemical Engineering and Clemson offers a minor in Nuclear engineering which would just add 15 more credit hours to my overall degree...
  32. M

    How to program a buzzer to a PIC18F452 with PROTEUS and MPLAB IDE?

    crystal frequency is 4MHz The code i have tried is: #include <p18cxxx.h> #include <xc.h> void main(void) { TRISC = 0; // making TRISC pins output ADCON1 = 0x07; // making them digital pins while(1) { RC0 = 1; __delay_ms(5000); RC0 = 0...
  33. M

    Comp Sci Interrupts on pic18f452 not shooting in mplab X, help? C language

    I am using MPLAB X, everything is working great when I work on examples that require smaller or no preload at all, I do not understand why that is the case, is there a limit to the TMR0L? Hello please help asap, my specific case I have: 4MHz crystal -----> 1 / (4MHz / 4) = 1MHz timer I...
  34. Y

    Programs What Is a Doctor of Engineering Degree and How Does It Work?

    I've recently learned that "Doctor of Engineering" degrees were a thing. It's seems to be a collaboration between the school and the company they work for. Does anyone here have one? Are these programs meant to be completed while continuing to work in industry full time? I couldn't find this...
  35. engineerintraining

    Engineering Practice Problem for a Pin-Connected Frame

    Have identified what i need to find, but not sure how to proceed since there is a pin in the centre, do I treat it as two separate structures?
  36. newbie1127

    A question about exam problems for Engineering students

    Summary:: hi everyone, i have always wondered whenever i am solving problems in preparation for exams, if other people see the problems that i encounter the same way i do. so, i decided i would write a post and collect perspectives. the way i see it exam problems can be classified in two...
  37. M

    State space controllers - find equations from differentials

    Summary:: This is similar to the examples of electrical circuit state space analysis, I have been trying to find the state space equations from the following non linear first order differentials but I keep getting stuck. Any help? A) Started off from non linear equations: $$y' =...
  38. M

    Engineering First order non linear to state space equations

    How to represent this system in state space form? where: $$ x' = Ax + Bu \text{ and }y = Cx + Du$$ I am trying to create a state space model based on these equations on simulink, need to find A, B, C and D but like I mentioned, i cannot find the solution when the differentials are not of...
  39. Z

    Exploring the Benefits of Planar Multibody Dynamics in Mechanical Engineering

    Hello I am reading the book : " Planar Multybody dynamics, Formulation, Programming and Application" An interesting lecture , however is it worthwhile studying these methods for kinematic and dynamic analysis of mechanical mechanisms? I mean There are many softwares on the market which make...
  40. V

    Undergrad Research Topic Ideas Please (Electrical Engineering)

    I'm currently looking for possible innovative research topics or ideas, I'm having a hard time to think of one since everything is getting really advance. Thank you.
  41. M

    How do you use electrical components adequately?

    The image i provided is a section of microcontroller circuit that i used to interface code in C with the I/O port of the microcontroller, in Proteus. I have realized i was only ever told to learn how to measure the voltage and current across the components, Kirchhoff's rules and all, and...
  42. D

    Engineering Overarching Intro Engineering Textbook

    Is there any sort of textbook that covers multiple engineering areas that is at an introductory level?
  43. M

    From differential equations to transfer functions

    *** MENTOR NOTE: This thread was moved from another forum to this forum hence no homework template. Summary:: Trying to find transfer functions to design a block diagram on simulink with a PID controller and transfer functions for a water tank system. ----EDIT--- The variables and parameters...
  44. manareus

    Estimating maximum percentage error using partial differentiation

    Attempt at question No. 1: ΔD = ∂D/∂h * Δh + ∂D/∂v * Δv ∂D/∂h = 3Eh^2/(12(1-v^2)) ∂D/∂v = 2Eh^3/(12(1-v^2)^2) Δh = +- 0,002 Δv = 0,02 h = 0,1 v = 0,3 ΔD = 3Eh^2/(12(1-v^2)) * Δh + 2Eh^3/(12(1-v^2)^2) * Δv Because the problem asked for maximum percentage error then I decided to use the...
  45. cellist542

    Schools College Decision Debate -- Purdue, Penn State or Illinois for Engineering?

    I am currently a high school senior and intend to study engineering in college next year. I am currently considering 3 schools: Purdue, Penn State, and Illinois. All three are excellent schools with solid engineering programs, and all have different benefits and drawbacks. I was admitted to the...
  46. Anmol Dubey

    Determining the Yield strength and Ultimate tensile strength of HDPE

    Help would very appreciated. Also I am new to this website so if something seems wrong please tell me :)
  47. S

    Engineering Boundary Conditions Electrical Engineering

  48. L

    Engineering calculations as a deliverable: standards and references

    My question relates mainly to mechncial engineering but I guess the general principle may apply elsewhere. Up until now I have mainly been an engineer on the customer side (marine and offshore) , reviewing contractor reports, "sense checking" them and general engineering firefighting and...
  49. W

    Why is engineering the toughest major (for me)?

    I'm in my 2nd semester in the 2nd year of college and I'm very perplexed. I'm learning a lot of physics and chemistry subjects and I can solve them using the mathematical apparatus but I just can't explain them in real life. In chemistry I can understand a few concepts about some chemical...
  50. matqkks

    MHB What is the best way to introduce Laplace transforms in an Engineering Mathematics course?

    Are there any practical applications of Laplace transform? I would not use Laplace transforms to solve first, second-order ordinary differential equations as it is much easier by other methods even if it has a pulse forcing function. How can Laplace transforms be introduced so that students are...
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