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- The design, building, and use of engines, machines, and structures. For any engineering topics not applicable to the categories below.
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Jan16-12 Greg Bernhardt
We always have threads on various pieces of the puzzle, but what I want here is for people to post a coherent plan of...
Jun23-14 12:38 AM
OmCheeto
1,027 222,098
You're just one click away from posting your homework help request! Click here to post.
May17-14 06:51 PM
Redbelly98
0 1,630
A number of questions, particularly involving homework, often involve some basic engineering. In the US, the...
Nov22-13 02:02 PM
rneale
38 57,667
I'm currently building a roughly 5m tall mallet for testing the strength of various pipes against impact force. I've...
Aug15-13 09:52 AM
Baluncore
2 1,027
This is a really dumb question that I have not found an answer for. I recently bought an erector set with a 3-6...
Aug15-13 03:47 AM
Bobbywhy
5 842
Hello Experts I have a question regarding high amperage going through strands of wires. For example, when...
Aug14-13 12:22 AM
Baluncore
11 906
Here's my problem: I have been using a digimatic indicator tool to measure the thickness of a somewhat uneven film....
Aug13-13 08:17 PM
Simon Bridge
1 965
anyone knows the difference between a snug tight and a fully tensioned bolt? thanks in advance:thumbs:
Aug13-13 07:46 PM
Simon Bridge
4 3,281
Hi there. I am designing a type cilindrical can full of a fluid, with a temperature difference between the top and...
Aug13-13 07:24 AM
c.teixeira
0 683
I am not an engineer which is why I have come to this forum. I am currently working on a project for my business. ...
Aug13-13 06:48 AM
Baluncore
1 696
You can read just bold, or all for further info. :D The COP for a single stage vapour compression refrigerator...
Aug13-13 04:52 AM
recreated
0 633
Hi everyone, I would like to know your opinion about telecommuting (working from home) As an engineer, what are...
Aug12-13 11:15 PM
Kin-tsurugi
0 568
Hey guys! Loving the site, I'm not much of a science guy by any means but really enjoy reading about all the...
Aug12-13 09:49 PM
impostar
0 590
Hello All, Let us say I want to set up a nice new town in middle of Australia (it is all desert), 500km from the...
Aug12-13 11:53 AM
SteamKing
2 739
When a hand spray painting gun is used to paint say metal tanks, about 80% of the paint is lost in the air. This...
Aug12-13 12:59 AM
Simon Bridge
6 821
Dear All, How important is the node numbering scheme for simple fem problems or is it important at all? It will...
Aug11-13 04:41 AM
SteamKing
3 1,344
So lately (meaning the past few years) I've been hearing a lot about graphene and how it's amazing. It's apparently...
Aug10-13 01:18 AM
Simon Bridge
3 804
If you have a cylinder with a slightly larger diameter at one end (the intake end) Would having one ducted fan powered...
Aug9-13 04:28 PM
Aero51
2 1,052
Hello All, I am in the process of creating a 33' tall chaotic pendulum, and cannot find any calculations for the...
Aug9-13 11:18 AM
mauchitoq
8 2,582
I have Windows 7 64 Bit and a USB TV Tuner Stick. I live in the State of Pennsylvania in the USA. I was going to...
Aug7-13 01:05 PM
biferi
0 718
i was wondering about this, because I learned that those vests don't protect against knives.
Aug6-13 07:54 AM
phinds
1 1,069
This is not a homework question but a simple equation I want to make clear. If temperature of gas on one side of a...
Aug6-13 03:58 AM
recreated
5 732
Hi guys, So I'm starting to learn about magnetic fields and electrics fields, one of the equations we use...
Aug5-13 10:08 PM
Simon Bridge
15 1,965
Hi, im facing some problem can i just downsize the motor that drive the fan as currently the fan is operated at...
Aug5-13 10:25 AM
mark.watson
3 1,176
Hi, I was wondering if anyone knew where I could buy a pressure vessel that meets the following specifications: ...
Aug4-13 11:10 PM
SteamKing
1 802
I'd like to find out the names of well known and comprehensive introductory texts(at the undergraduate level) in...
Aug4-13 09:50 AM
accioquote
5 1,281
Hi I am an engineering student from Singapore. I am curious about engineering's definition. "Engineering is the...
Aug4-13 09:19 AM
Jingyi
2 939
I am currently in the process of designing an end-plate for a heat exchanger. I know I can do what I am about to ask...
Aug4-13 03:08 AM
Baluncore
2 2,122
good day, I am having trouble designing a destoner with an intergrated aspirator. hence I would like to...
Aug2-13 11:44 PM
Baluncore
3 1,814
Hi all, Havent turned to this forum in quite some time but hoping you might be able to explain to me my y-axis in...
Aug2-13 01:28 PM
davidm1732
3 1,273
We have a distillation column with insufficient temperature tappings. In order to do a rough survey of the temperature...
Aug1-13 10:29 PM
rollingstein
6 1,133
I can think of three ways to induce electrons to flow and generate electricity: 1. Light (i.e. PV cells) 2....
Aug1-13 04:48 AM
E_Q
5 1,570
Dear all members, I just need anyone of you to verify my system and some equations I have worked out for my problem...
Aug1-13 03:33 AM
Baluncore
1 1,299
When calculating delay, like the fall time delay of the output, through an inverter with rc model of the transistors...
Aug1-13 03:12 AM
Baluncore
1 1,090
Hi, I am trying to create a hall effect based position sensor to be attached onto a DC motor to generate feedback...
Jul29-13 04:50 AM
mfb
1 1,045
I know that light curtains are generally known as an aligned collection of light beams that stop/enable a machine when...
Jul28-13 04:16 PM
KDLNEAL
5 1,482
Dear Experts I have this problem for a long time. I always cannot get my project done because parts are not...
Jul28-13 06:56 AM
Baluncore
5 1,607
Hi guys , My present doubt is regarding the waveforms shown in the image. The first plot is a impulse...
Jul27-13 06:45 AM
Baluncore
3 994
I was digging a trench next to a building today so rain water would not back up to the buildings wall. Most of the...
Jul26-13 03:12 PM
Windadct
5 1,563
Hi, Is it possible to explain me the difference between "power dissipation" and "actual power dissipation" for a...
Jul26-13 03:03 PM
Windadct
7 1,896
I am looking for a fuel for a torch to heat an experiment to 500-1200C. We do not want to introduce exterior sources...
Jul26-13 02:57 PM
Windadct
13 2,070
What magnetic field (magnitude, I know the direction) would need to be applied so I could align the particles of a...
Jul23-13 05:37 PM
King God
0 904
Greetings Newbie here, I'd like to ask the engineers and physicists here about their experience with visualizing...
Jul22-13 06:57 AM
fluidmech
4 2,251

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