Newest Questions
17,063 questions
18
votes
5
answers
3k
views
How are passive houses made in very hot regions (like Saudi Arabia)?
I think, here is the main problem the difference between the internal and the external temperature.
For example, in Saudi Arabia, in 50 C, a passive house needed probably much sophisticated planning ...
- 2,384
14
votes
1
answer
482
views
Determining RTK parameters for runoff analysis
I am examining a watershed and determining runoff using the RTK method. I basically use a 'guess and check the hydrograph' method right now. I've seen calibrators that use a mutation and convergence ...
- 426
3
votes
1
answer
295
views
Magnetic levitation [closed]
I am currently considering turning my fascination with magnets into a diy activity.
How feasible is it for a hobbyist to construct a working model of a maglev device?
I'm looking to build something ...
- 57
13
votes
4
answers
2k
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In aluminum machining, what are the most common factors that might cause a machined component to have warping issues?
I am currently having an issue where features of my machined parts are warping. I am using Alloy 7050 Type I and Type III in this particular case. Using a feeler gauge and a certified, calibrated ...
- 366
12
votes
2
answers
3k
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What is the process of transferring an engineering license from the United States to Germany?
The United States have different rules about exactly how one obtains an engineering license, but the general process is the FE exam, a few years of work, and the PE exam. Suppose one then wishes to ...
- 1,685
6
votes
1
answer
207
views
Multi-gas barometric height formula in isotope separation devices?
What is the barometric height formula for a mixture of gases?
The main problem I can see, the curves describing the minimal energy (kinetic + gravitational/centrifugal) won't be any more a simple ...
- 2,384
11
votes
3
answers
3k
views
What kind of protection should I give structural steel in a natatorium (swiming pool) environment?
What would be the best type of steel to specify? Would a heavy galvanization suffice?
Are there specialty paints/coatings available for this particular application? If so, how long do they last?
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34
votes
8
answers
9k
views
Is it possible to "pump" a powder?
Is it possible to "pump" a powder the same way liquids can be pumped?
If so, what are the challenges? If not, what are some alternatives?
- 2,384