28 Sikorsky used to build helicopters with big air cooled radial piston engines in the nose. How were these engines cooled since they were fully enclosed behind clamshell doors?

29 Do engineers get along with people in other professions?

30 Since pure water doesn't conduct electricity, is there a way we can integrate water cooling on a deeper level in computers?

31 Construction Technology: How does a tower crane stay balanced?

32 What caused the 1500 degree fires under the WTC rubble that burned for months after their collapses?

33 What is your favorite construction project?

34 How airplane proof is the One World Trade Center?

35 How do wire guided missiles have so much range? How can a wire, with a length of hundreds of meters, fit in a missile?

36 What should every engineer know about risk engineering and management?

37 Was there no alternative to the space shuttle thermal tiles? It seems very fragile.

38 Did China get the technology for its super-fast trains from another country?

39 What is water hammer?

40 Which promising transportation technologies failed to gain market adoption?

41 Why are slower processors used in space equipment when faster ones are available?

42 Is it possible for us to build larger aircraft carriers than the ones currently in use?

43 Could an an engineer of average ability in 1940 successfully reverse engineer a 2010 personal computer and build copies or are there barriers that could not be overcome?

44 Are there designs that can exceed the Betz limit by using non-conventional approaches?

45 What are some examples of over-engineered products?

46 How does the "rain dome" on a train work, and could it be adapted for cars or other vehicles?

47 How are the tracks on the New York subway lubricated?

48 Does a designer's lack of hands-on machining experience lead to parts that are unnecessarily difficult to manufacture?

49 Why do we still use Allen keys vs. bolts?

50 What is the difference between a turbine and a pump?

51 How did the Romans treat water?

52 What happens to tunnel boring machines after they're done digging the tunnel they were designed to dig?

53 What are some examples of German over-engineering of automobiles?

54 Is hand-forged hardware inherently stronger than mass-produced hardware? A practical breakdown?

55 How are continuous welded train rails engineered to compensate for the length change caused by temperature differences?

56 Is an instantaneous underwater breathing apparatus feasible, like a portable unit that directly filters oxygen out of water?

57 How have people explained how ancient civilizations moved large stones?

58 What is the strangest engineering failure in history?

59 What intriguing facts do metallurgy experts know about other historical engineering failures that aren't widely known?

60 So, quick question about the fake Tesla flying car event. Did that car do anything that Jamie Hyneman and Adam Savage couldn't have built a "car" to do 20 years ago?

Catch viral questions before they peak

ViralHunt tracks Quora and 13 networks live — rankings, radar, and an editorial board for your team.

Try for free

Most viral Engineering 1 questions on Quora

More viral Quora topics

Catch viral questions before they peak