Top Questions

8 votes
3 answers
1k views

How does a church built from stones survive 70 years under water?

3 votes
1 answer
202 views

What are the benefits of using a spring as a drive screw in this electronic deadbolt?

1 vote
2 answers
110 views

Determining the suitability of a timber joint in a given situation

0 votes
2 answers
55 views

A question about the necessity of the observer in control theory

0 votes
3 answers
41 views

Understanding Block Diagrams in Control Setups

0 votes
1 answer
61 views

Did anyone ever make training wheels for the original Segway personal transporter device?

0 votes
2 answers
45 views

Linear and nonlinear model outputs are different using the same input

1 vote
1 answer
35 views

Elongation before plastic deformation

0 votes
2 answers
51 views

Using forming tap to reform eyeglasses female thread

-3 votes
0 answers
63 views

1976 Baltimore bridge collision with cargo ship

0 votes
1 answer
47 views

Analysing Bending in a Linkage Member

1 vote
1 answer
47 views

Comparing accelerated vs constant motion; inspired by real life example. Is reducing mass the way to save energy in vehicle use?

2 votes
1 answer
56 views

What's the smallest possible nuclear power generator?

0 votes
2 answers
43 views

Is this what 6061 aluminum looks like?

0 votes
1 answer
33 views

Multiplicative Vs Additive (PID) Feedback Loops

0 votes
1 answer
41 views

Why is the fan efficiency zero at high flow rate?

1 vote
0 answers
52 views

How to calculate the torque disturbance of an unbalanced flywheel?

0 votes
2 answers
40 views

Is It Possible To Calculate The Internal Pressure Which A Sealed Glass Vessel Can Support, By Creating A Relative Vacuum Outside The Vessel?

0 votes
2 answers
39 views

Most sound proof earmuffs in the world

0 votes
0 answers
50 views

How accurate is axisymmetric beam theory for modeling plate bending?

0 votes
1 answer
30 views

What is the relationship between classical control: transfer functions/frequency domain and the swing-up problem of an inverted pendulum

-2 votes
0 answers
49 views

Could a miniaturised, lightweight Direct Air Capture (DAC) capability for CO2 be incorporated into industrial air conditioning units?

0 votes
1 answer
36 views

Can we reshape the root locus by adding a pole instead of a zero (as is done in PD controller) to get required Ts while O.S. being the same?

-1 votes
0 answers
46 views

Heat Transfer Problem - Cooling of water through aluminium coil

0 votes
0 answers
45 views

Event tree for the failure of a buried crude oil pipeline

1 vote
1 answer
27 views

How to compensate for the activation torque of a harmonic drive

1 vote
0 answers
43 views

Which aluminum alloy is used in cheap commercial load cells?

0 votes
1 answer
33 views

Steel cable trolley, best practices and weight limits

0 votes
0 answers
42 views

Pessure required for pumping seawater through pipe with inlet at a depth below sea level

0 votes
1 answer
32 views

How can I modulate rotation speed of a wind powered device?

0 votes
1 answer
32 views

Do the models of reversible cycles like the Carnot Cycle help engineers in any way to design real Heat engines?

0 votes
1 answer
41 views

How to calculate the height of the supporting structure of an arch and the thickness of an arch in relation to its span

1 vote
1 answer
31 views

What is the flow rate at pressure x when given these pressure drops?

0 votes
0 answers
39 views

How to make Peaucellier–Lipkin linkage work?

0 votes
0 answers
38 views
+50

Rigid body motion (RBM) transformation of interface points between a rigid and an elastic bodies

2 votes
1 answer
38 views

Is the electrical grid a centralized, decentralized, or distributed network? Which type is most efficient?

0 votes
0 answers
37 views

Identify pairs of points of constant distance between them, placed on two moving (rotating) rectangles

0 votes
1 answer
37 views

How could the Crocus City Hall in Krasnogorsk burn to ashes if it was not wooden?

0 votes
0 answers
35 views

Which failure probability is low enough to be considered as 'will not happen'?

0 votes
2 answers
27 views

Dual-independent turbo engine possibilities

0 votes
0 answers
34 views

How does an airflow sensor work?

0 votes
0 answers
34 views

I'm struggling to manipulate the necessary equations to find the final temperature and pressure

0 votes
0 answers
34 views

How can I mount this plate on a Steel Beam?

0 votes
0 answers
34 views

How does the thrust rating of a push rod/linear actuator (I've seen it in both kg and N) relate to the amount of weight it can move?

0 votes
0 answers
33 views

Free body diagram problem: Linkage w/ magnets and friction hinge

1 vote
0 answers
33 views

Multi variable control of BLDC motor (Speed & DC Link Current)

0 votes
1 answer
33 views

Mechanical fasteners for HDPE pipe and sheet?

0 votes
1 answer
30 views

Calculate the deflection of a fixed supported beam


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