Engineering Stack Exchange by Kiwix

Q&A for professionals and students of engineering

Most popular questions

70 Why do glass windows still exist? (Why haven't they been replaced by plastics?) 2016-02-13T06:20:28.890

50 Why do cars have mirrors for rear view rather than cameras? 2016-03-16T07:19:14.157

49 Why is kVA not the same as kW? 2015-03-02T17:45:28.383

46 How was Volkswagen able to trick the lab pollution test? 2015-09-28T13:58:53.050

42 My customer wants to use my products to do something unsafe. What is my ethical obligation? 2015-04-18T15:17:38.743

40 Is it possible for a bicycle chainwheel to have a fractional number of teeth? 2016-01-25T14:32:16.590

30 What is the purpose of these diversions in a natural gas line? 2015-02-09T22:48:52.813

29 Is it possible to "pump" a powder? 2015-01-20T18:35:59.493

29 How fast does solid waste fall in vertical drain pipes? 2015-02-04T12:47:47.763

27 Is it possible to build a perfectly spherical Prince Rupert's drop? 2015-01-21T15:10:36.230

27 Transmitting power over long distances what is better AC or DC? 2018-03-07T12:05:36.320

26 Why dig out and then fill in before building a large structure? 2015-03-06T09:02:15.897

25 What are the pros and cons of a traffic circle versus a traffic light intersection? 2015-01-21T02:42:04.263

25 Which is Worse: Car vs. Car or Car vs. Wall? 2015-06-08T23:54:06.047

24 How to quantify martial arts strikes? 2015-02-20T01:07:56.827

24 Is it possible to build an air compressor with no moving parts? 2015-05-14T16:46:46.883

23 From an engineering point of view what are the downsides of a too accurate model? 2017-11-29T16:31:22.543

22 Why doesn't a lightning strike destroy the lightning rod? 2015-02-22T19:21:19.357

21 What is a reason that handlebars fit to a motorcycle and steering wheel fit to a car? 2015-02-08T09:56:35.350

21 Why don't hydroelectric plants use cascades of turbines instead of single turbines? 2015-02-26T12:17:55.497

21 What is the purpose of these "steps" in rivers? 2015-07-02T20:42:34.323

21 Why would you launch a large ship by dropping it sideways? 2016-02-21T00:46:55.283

20 How to know whether the flow is supersonic in a nozzle? 2015-01-26T17:56:37.703

20 How much can Protactinium degrade the efficiency of the Thorium fuel cycle? 2015-02-10T20:21:35.900

20 Why are rear wheels not placed at the extreme rear of a bus? 2015-04-08T21:53:54.640

20 How are increasingly accurate machines made? 2015-07-20T04:43:09.243

19 Why do hydraulic systems use special fluid - what's wrong with water? 2015-01-26T11:41:47.390

19 Why are earthfills fully covered in concrete where they join bridges? 2015-04-02T12:53:56.237

19 Why do car wheels have holes? 2015-05-19T12:02:10.323

19 Why would a train automatically derail if a signal is passed at danger? 2016-06-17T09:33:47.453

19 Windmills in empty fields. Why no trees? 2016-11-23T12:51:59.090

18 How do engineers really use numerical simulation? 2015-01-24T05:36:09.180

18 Sizing a pressure safety valve for two-phase flow 2015-01-25T06:31:07.680

18 Would it make sense to have a 12V lighting circuit in a house? 2015-01-27T03:34:07.273

18 What are the major differences between Engineering degrees and Engineering Technology degrees in terms of employability? 2015-02-02T14:52:52.810

18 How to make smoke for a small wind tunnel? 2015-02-03T02:48:51.363

18 What makes suspension bridges unsuitable for railways? 2015-02-03T23:43:30.253

18 Does a roadway bridge experience more load when vehicles are parked or when they are moving? 2015-02-17T14:47:53.910

18 Why do cars turn by turning the front wheel? 2015-08-28T20:52:38.440

18 Why does the Channel Tunnel enter the ground around 10 km from the coast? 2015-12-06T03:14:43.013

18 Is there a method to determine the runoff for arid areas in developing countries? 2016-04-22T09:39:04.877

17 How are passive houses made in very hot regions (like Saudi Arabia)? 2015-01-20T22:03:47.020

17 What is the most efficient means of warming a building with a high ceiling? 2015-01-23T18:05:35.530

17 How to design a house to be cooled passively? 2015-01-27T22:28:43.523

17 Why does it take so long to restart a nuclear power plant? 2016-02-12T15:18:07.183

17 What's wrong with transporting a refrigerator on its side? 2017-06-10T21:20:48.730

17 Why did steam locomotives not transfer power by cogwheels? 2018-03-01T18:00:08.887

17 Fracture patterns in tempered glass 2018-06-05T15:33:03.213

17 Why are truss bridges the way they are? 2018-07-23T16:03:34.507

16 How does width and thickness affect the stiffness of steel plate? 2015-01-21T03:15:17.020

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