Engineering Definition and 997 Threads

I find that Oxford and Cambrige dont have aerospace engineering, only mechanical engineering/pathway aerospace. What do you think about that or is better to study "pure" aerospace? What university do you suggest? Also I checked that subjects are very different at each university.. I checked...

Here, SP stands for source probability. But probability needs to be normalized. Here values in SP3, SP4 are larger than 1, It means that SP is not ordinary probability here. But what actually SP represent here?

Hi I am Nav, I have studied a Bachelors Degree in Engineering and Physics. I have been working as a telecommunications engineers for the last 8 years. I am also a Physics tutor and need help time to time utilizing this forum. Thanks Hi I am Nav, I have studied a Bachelors Degree in Engineering...

I started studying mechanical engineering, where I started thinking about things that might make me a successful and highly competent engineer in the near future. Then I started searching through artificial intelligence tools for useful sites for me as a mechanical engineering student, and your...

I am glad to see Bill Hammack "The Engineerguy" doing some more videos. This one shows examples of how engineers solve problems _before_ they have scientific certainty: How to control whether or not fluid flow is smooth or turbulent, and selecting enzymes.

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Why are cars so over engineered? A sled sliding down a set of tracks is much simpler than wheels. An aluminum tube with a slider fitted trough an open slit on top could be driven with a ,three phase coil built into the slider, to drive it forward or to stop. Three phase electric current from a...

I saw it was a responsive group and knew it would be helpful. No money to buy textbooks for formulas and Google is often maddeningly unhelpful or worse, misleading. Thanks in advance for your patience as I have ZERO formal education in the subject of physics and very little in engineering...

I am curious about all things physics and would love to explore ideas here with like-minded people.

If you had--infinite--resources, material, manpower, energy, but only with current technology, or something that could be learned in a short time, how big of a microscope would it take to see a Planck Length? If there's a current limit, still with infinite resources, how small could you see and...

I'm in my last 2 years of high school, and I have to pick a speciality to study before becoming an undergraduate and studying in college. In the future, I'm hoping to become an experimental physicist. My high school offers 3 specialities that are relevant to physics to pick from, all of them...

The Engineering Cadre: 1. Engineer 2. Technologist 3. Technician 4. Artisan/craftsman. Warm greetings, PF intellectuals. I would like to hear your insights about the ranking. The last have no qualification. What is/are the difference(s) between an engineer and a technologist? And who really...

Greetings, This is a slightly longer post but it's coming from someone who's humbly and sincerely passionate+motivated about pursuing Physics and hence I'd be immensely grateful to everyone who can help me clear my confusions and see a ray of light and hope! You'd be doing me a solid :) My...

Good afternoon, How should an upstream isolation transformer be sized for a dc power supply? For example, if we have a power supply with the following specs: Input Voltage: 120 VAC Input Current: 2 Amps Inrush Current: 22 Amps Efficiency: 90% Power Factor: 0.55 Output Voltage: 24 VDC Output...

I am working with a wheel endurance testing application. I am trying to size a motor for the system. Basically, I have a drum which has to be rotated by the motor. I have different size wheels that I have to test. The motor is supposed to rotate the drum and then the wheel is pushed onto the...

Hello everyone, I am looking for a material with the following characteristics: - It must be machinable - be as thermally insulating as possible, and resistant to a temperature of at least 100°C - transparent to near-infrared light (~1µm wavelength) - relatively resistant to deformation, for...

I stumbled across this article from decades past written by the best EE instructor I ever had. I thought it might be of some passing interest to others in highlighting the difference between memorizing a mathematical result vs. truly understanding it. The essence of engineering, in effect. We...

I'm a student at a community college that was gifted a wind tunnel by a local uni. I'm leading a group of 5+ engineering / science students to refurbish and tune it. The testing chamber is around 12 x 5 x 5 inches, and we have free reign to do anything we'd like. We've had some ideas like...

Hey folks, any help will be greatly appreciated. I have, what I thought, was a fairly simple equation to follow to determine the mass of air in a pressurised air tank. See below question and my attempt at solving using the pV = (m/Mr)RT) equation. A pressurised air tank supplies compressed air...

I have bachelors degree in electric engineering and masters in engineering management and 14 years of experience in software product development. So no experience in physics at all. Is it possible to do a phd in physics ? Its always been my passion that i now think about pursuing

Hello, After some time away I've gotten back into MCNP. I've been in the field of Nuclear Engineering for over ten years, but I recently changed jobs and need to use MCNP. I'm trying to get my skills back up, since I haven't been using it as much in my old job. Looking forward to some great...

Attached is an image of the HW problem, included is a YouTube video I found for a solution. Assuming the solution shown is correct my question is about the rest of the system. I always approached problems from a top down "total system" perspective. Then try to isolate the portions of the system...

Hello I'm Mike. I'm a Mech Simulation Engineer. I am grateful with the help from this forum which directly solve my problem. Hope I can gain more engineering knowledge and experience, and also can help others. Best regards!

Please only respond if you know the node voltage method. I need to write equations for this circuit. My problem is that 1 has two paths towards 3, so when I write equations do I write both of those paths or only one. U30(1(-jXc1)+1/(jXl1+R1)+1/(jXl2)-U10((1/(-jXc1)+1/(R1+jXl1))-U20.... (the...

Is my work correct?

Hello. My answer to this question would be something along the lines of the placement of additional loads can allow for structural testings to investigate forces, bending moments and shear stresses in order to optimise beam designs. However, is this what the question is asking?

Upon completion you will know why cow magnets taped to your automobiles fuel line will add 2 to 5 miles per gallon fuel milage to any automobile! https://www.magnetsource.com/collections/cow-magnets-l1 but I digress!! this was a thing in the oil embargo in 1970s no shi#!

I have a column clamped at the bottom and for the top, I use hinged BC but free at the Y axis. I have the dimension and the material properties. How to calculate its natural frequency?

First, this class uses Frank White's Fluid Mechanics textbook. This particular problem is taken straight from chapter 7, which is on "Flow Past Immersed Bodies" and is basically focused on external flow, geometry effects, and boundary-layer conditions. So I imagine that the problem makes use of...

i have this question and i just want to make sure i am on the right track as i know there are quite a few steps to this to get to the final soultions i need to find Current at r1 voltage at r1 current at r2 voltage at r2 i have so far split this into 2 drawings so i am dealing with one power...

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...

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...

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...

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...

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...

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...

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...

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

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...

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...

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...

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...

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...

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

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...

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...

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...

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...

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...

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...