What is Engineering: Definition and 996 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. J

    Finding Values Using Fe-C Diagram for Materials Engineering Assignment

    Summary:: Need help with finding values using Fe c diagram Hi, I'm doing a materials engineering assignment. In the assignment they require us to make 3 swords being given martenistic steel bars with dimensions 40x100x1000mm with a composition of Fe-0.76wt.%C (eutectoid composition). Sword A...
  2. Y

    Other PhD in Engineering - Logistical Questions

    I'm considering a PhD in Engineering and I have some logistical questions. My Background: By the time I'm done with my current program, I will have been at least a part time student every fall and spring semester for over 10.5 years. Despite the length of time, I still have the desire to learn...
  3. J

    Does the title "Masters of Aerospace Engineering" exist?

    Do title master of aerospace engineering exist or you can only be master of aeronautical or astronautical engineering?
  4. C

    What is the resulting force between the beam CB and E?

    I assumed that the vertical force at point B would be the same as the force between beam CB and E because of Newtons law. Did I assume wrong? Look below for my calculations and answer which I got to 250N. I don’t know the correct answer but assume someone here can tell me if I solved the problem...
  5. quixote

    Finding Guidance as an EE College Student: Tips and Suggestions

    Hey all, I'm new here but enough already about that. an EE college student looking for guidance as well as suggestions and whatnot. see y'all around.
  6. S

    Physics Bachelors in physics with a minor in electric and computer engineering

    I am considering getting a physics bachelors with a minor in electric and computer engineering. I want to study computers and the hardware behind them, but also study the physics aspects of them. I also am considering going to graduate school to get a masters or PhD and doing research into...
  7. M

    Which engineering branch would be the best for me?

    Hi everyone, now I'll be starting my senior year, and like most of graduates I feel concerned about my future plans. I am pretty sure that I'll study engineering, but I just can't decide which field, I read about them a lot but that doesn't help me at all so I hope that someone can guide me a...
  8. S

    Engineering Ideas for an Engineering mind, fed up of Engineering?

    Hi all, I've been working as an engineer / engineering technician for 8 years now, and I have become somewhat disillusioned with it. I pursued this career course out of convenience, interest and aptitude; I was given a summer job making the floor-plans for an investment casting factory, and...
  9. Rx7man

    Engineering Limits Challenged: Metering Device Project

    Once again I'm looking at a project that is challenging my engineering limits! I have a type of metering device that has an electromagnetic coil that actuates it, it's designed to be relatively linear motion depending on amperage applied through it, and it has a variable resistor as a sensor for...
  10. snatchingthepi

    Programs PhD in Medical Physics vs Biomedical Engineering

    I have two paths I can take in my graduate studies. I'm currently an MSc student studying hybrid PET-MR systems in a medical physics program. My advisor is adjunct to the department of biomedical engineering, as well as the medical physics department. We were discussing doctoral work and it came...
  11. person123

    Widgets for Visualizing Engineering

    Hi! First off, I'm just an upcoming junior in Civil Engineering, and I have little teaching experience. I have done well in engineering classes so far though, and I've thought about ways to improve how classes are taught. While there are some widgets for engineering, like those in MATHTAB and...
  12. J

    Exploring Entropy: A Systems Engineering Perspective

    As a systems engineer I have thought a lot about entropy in trying to get a better intuitive sense for what it is, at a more macro level than it is usually discussed. I have some ideas and am looking for a forum to present and explore them with others. I wish to discuss more from an...
  13. jeffrey

    Pulley angular velocity problem

    Further given: - every beam is infinite stiff - pulleys are massless - cables don't stretch, no slip, and frictionless. -Every pulley has a diameter D except pulley Q. Pulley Q has diameter 0.5*D So what I don't understand is how to calculate/determine the velocity at R and S. Can someone help...
  14. dorteam

    Question about the theory of machines

    I couldn't do it
  15. C

    Engineering Calculate the max common mode voltage at the differential amplifier inputs

    Im unsure if I am on the correct track or have gone off on a tangent. Any help or guidance would be appreciated. CMRR=20log10(Adiff/Acm) 120=20log10(10^5/Acm) 120/20=log10(100,000/Acm) 6=log10(100,000/Acm) taking antilogs 1,000,000=100,000/Acm Acm=100,000/1,000,000 Acm=0.1Max amplified...
  16. J

    A Comprehensive "Map of Electronics Engineering"

    Summary:: I was wondering if there was a map of electronics engineering much like this does for physics (https://www.youtube.com/watch?v=ZihywtixUYo). I realize that looking at undergrad course outlines should give a decent picture of the field. However I am looking for a more comprehensive...
  17. A

    Do you have some good advice for an electrical engineering student?

    Summary:: hello there, what are some good advices you would have liked to know when you were a student of EE? Thanks in advance!
  18. E

    Which engineering path should I follow?

    How did you find PF?: Google Hi, I am very undecided and confused about what engineering path(I don't know if I should say path or field) I should follow, so I am here to get some information about each engineering path. At first, I was interested in biomedical engineering, but then I changed...
  19. A

    Job Skills Getting Discouraged in my Engineering Job, Pondering a Career Change

    Hi everyone, I hope I can articulate what I'm thinking, as I'm unsure if this is specifically an "engineering job" problem or a job in general problem. I graduated with a BSEE, got an MS right after, and have worked in two companies so far. I had a pretty good gpa for both, over 3.6, so I...
  20. J

    MHB How does temperature affect the length of a steel measuring tape?

    Please help me A certain steel tape is known to be 100000 feet long when the temperature of 70°F . When the tape is at a temperature of 10°F, what reading corresponds to a distance of 90000 ft? Coefficient of linear expansion of the tape is 5.833 x 10-6 per °F.
  21. J

    MHB Engineering Mechanics: airplane landing

    The landing speed of an airplane is 360 kph. When it touches down, it puts on its brakes and reverses its engines. The retardation in its speed is 0.2 times the square root of its speed. Determine the time elapsed in seconds from the point of touchdown until the plane comes to a complete stop.
  22. J

    MHB Engineering Mechanics: car speeding up

    A car starting from rest picks up at a uniform rate and passes three electric post in succession. The post are spaced 360 m apart along a straight rod. The car takes 10 seconds to travel from the first post to the 2nd post and tales 6 seconds to go from the 2nd post to the 3rd post. Determine...
  23. J

    MHB Engineering Mechanics: depth of crater

    The depth of the crater of the Taal volcano was calculated in the following manner: From a helicopter flying vertically upward at 6m/s. A small bomb was released at the instant the helicopter was 20m above the crater surface. The sound of explosion was heard 9sec later. If the speed of sound is...
  24. PainterGuy

    Were science and engineering seen as distinct fields in 18th century

    Hi, I was reading about Euler-Bernoulli beam theory on Wikipedia and couldn't understand few points under the history section. Source: https://en.wikipedia.org/wiki/Euler–Bernoulli_beam_theory How were they making bridges and buildings back then if they were not 'trusting' science? Isn't...
  25. N

    Mechanical engineering: Maximum Power Transmitted by a V-Belt Assembly

    Summary:: Hi I’m in second year mechanical engineering and I really need help with this question! Sorry about my handwriting in the attachment I’ve put in, I've written the question out but there is an image of figure one on the file attached. Many thanks! [Mentor Note -- Thread moved from a...
  26. w4y021

    Courses Changing my life from Engineering to Theoretical Physics

    Long times have been that I've decided changing my job from engineering to theoretical physics. Because I don't want to learn the rules that have been discovered by any scientists and make a situation about getting it real :]. I want to learn how the rules of nature is being discovered and what...
  27. Franklie001

    The average rate of energy loss resulting from internal friction

    Summary:: Having the following dates:
  28. Admiralibr123

    I Looking for Experimental Data on Isotopes (Nuclear Physics and Engineering)

    So, a website in which I just enter an element or an Isotope and it just lists all the relevant experimental data like mass, mass-defect binding energy etc. Also resources for the absorption data, resources to explore Monte-Carlo simulations, and other calculation tools would be awesome. Just a...
  29. J

    Engineering Combining these two AC waveforms

    I have calculated V3 to be 294.62sin(1800 pi t + -0.56)V I am confident this is correct but I now need to work out the frequency of the waveform, I believe it may be 900 but I am not too sure if my calculations are correct and I can't find anywhere on line that aids me in this particular instance.
  30. J

    Engineering Hydrostatic Pressure Sluice Gate - Civil Engineering

    Please can you help with a question I am struggling with. I have done as much working out as I could until I was completely stumped: Calculate the concrete volume that is required to keep the sluice gate AB closed, assuming that the only resisting force is the friction between the concrete...
  31. aligator11

    Engineering Homework problem - Pendulum oscillatory system

    Hi All, Anyone willing to help out in explaining what eigenfreuqncy for this oscilatory system, would be? Also if anybody knows the equation to calulate this stuff please, if you're willing to share I'd be greatful! Thanks, regards.
  32. S

    Fluid Mechanics: Fluid Transfer Between Two Reservoirs at Different Heights

    A reservoir supply tunnel transfers water from a high level storage reservoir via a 200mm diameter pipe to a lower intermediate reservoir. The total height difference between the free surfaces of each reservoir is 76 m. The pipe is 700 m long and the coefficient of friction, Cf is 0.009. The...
  33. GiriBang

    Engineering Navigating a Career in Marine Engineering: Is It Unemployable?

    Right, I'm ambitious about joining the Indian Navy via Graduate entry scheme or at least some private companies like Maersk. But recently a relative who took Diploma in Marine Engineering said that the industry is flooded and it's currently unemployable. He said 4th Engineers are being fired...
  34. D

    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...
  35. K

    Engineering a Desk-Mounted Flight Stick for Flight Simulation

    Hi, First off, full disclosure as mentioned in the title, I am not an engineer, but I'm working on an engineering project without the required base knowledge. I'm a professional pilot that also likes to fly flight simulators for fun (mostly military planes, because I'm not allowed to fly...
  36. R

    Engineering Want to study mechanical engineering.... but failing physics exams?

    Hi, I'm feeling pretty disheartened after failing my second college physics exam in a row (I have about a low C in the class with homework and labs). I'm a freshman in physics 1, my first college physics class, where we are learning mechanics. I took physics in high school but my teacher was...
  37. H

    Engineering Projects and live experience

    Hey, I hope everyone is doing well. Let's self-quarantine and protect our world from this pandemic. As we have lots of spare time, I just thought of sharing some latest experience I had. I'm doing my master's in Petrochemical engineering. Last month I just visited a company that provides forged...
  38. N

    Math Switching from Electrical Engineering to Theoretical Physics

    Hi all, I'm going to graduate this May with a degree in Electrical Engineering. While I've done pretty well, my passion was never in EE and I'd like to aim for graduate school in Computational Neuroscience. When I look at the background and methodology employed by many favorite (current)...
  39. A

    Where to find engineering drawings?

    Hi I'm a first year engineering student from Egypt. It's known that as physics is understood in the language of mathematics engineering is understood in the language of drawing. And since I am an engineering student I was searching for educational and detailed engineering drawings for nearly...
  40. W

    Other Which engineering degree should I aim for?

    I’m a high school student becoming increasingly interested in taking mechanical, aerospace or nuclear engineering, however I’m not sure which would be the best one. From the basics I’ve researched, all of them are things I’d like to study as each have something different I’m interested in. I did...
  41. cwill53

    Programs Double Major in Electrical Engineering and Physics?

    I’m a freshman in undergrad and I currently attend the University of Illinois at Chicago. I major in electrical engineering but I have an extremely strong interest in physics, chemistry, and materials science. UIC doesn’t have a materials science program, but George Crabtree, a highly cited...
  42. S

    Job Skills Future Mechanical Engineering Domains

    Hi, Which technology specializations within the mechanical engineering domain will be most demanded in the future? (I am looking for different technologies rather than for applications enabled by the technology. For example not 'robotics', but rather the technologies used for robotics) Thanks...
  43. S

    Other Employer paying for my engineering master’s when bachelor’s isn’t in engineering?

    I know that those who graduate with an engineering degree and go on to work as engineers will often have their master’s degree paid for, at least in part, by their employer. What about graduates of other fields who don’t work as engineers? I am a physics major and one of the paths I am...
  44. A

    I can't deduce the third view of an engineering drawing

    Hi What are the general algorithmic steps of producing a third view from existing two. I can't do it for all cases. So I am searching for an algorithm to follow. Famous books don't pay a lot of attention to the subject. But in my school it is ! Can someone please help me with the steps. And by...
  45. Q

    Switching to chemical engineering from physics?

    Summary:: Would it make sense for me to switch from physics to chemical engineering if I have no interest in most chemical engineering jobs? I’m currently a first-year physics major. Over time, I’ve come to the conclusion that my general interests lie in applied science rather than in pure...
  46. cellist542

    Programs Engineering Triple Major (Mechanical, Electrical, Computer Science)

    I am currently an ambitious sophomore in high school aspiring to become an engineer. Generally, I love physics, chemistry, biology, and I'm interested in computer science. I am interested in aeronautical, biomedical, chemical, electrical, environmental, computer, mechanical, materials, nuclear...
  47. fissifizz

    Physics From Software Engineering to Astrophysics Grad School

    Greetings everyone. I am an undergrad currently majoring in Computer Science with a minor in Physics. I entered college as a physics student because I wanted to pursue astrophysics as a career. After my first 1.5 years of courses and a summer research experience, I concluded that a career in...
  48. S

    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...
  49. A

    Have You Heard These Science Jokes Before?

    i go first
  50. F

    Engineering Which Engineering Degree is Best for Working in Energy?

    Hello, I've googled my issue, but couldn't find some practical advice on the matter, rather some differences between Mechanical Engineering and Electrical Engineering in general. So, which one would be better if one wishes to work in the energy industry, namely Nuclear Energy, but maybe also...
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